Best Fish Antibiotics To Stockpile For Doomsday

A fish is taking a closer look at fish antibiotics bottles for the best fish antibiotics for doomsday preppers & long term survival.

Best Fish Antibiotics For Doomsday Preppers & Long Term Survival

Many preppers are stockpiling fish antibiotics for long term survival. This article provides an end of world Doomsday scenario viewpoint where fish antibiotics could be used when there is no access to modern medicine, hospitals and doctors. is reader-supported. When you buy via the links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Fish Antibiotics have become an item that is stockpiled by some preppers. Dr. Ryan Chamberlin (trauma surgeon), Dr. Joseph Alton, and the Patriot Nurse (who has a popular YouTube channel) are just a few medical professionals among others who have recommended fish and other pet antibiotics (for end of the world Doomsday emergency situations only) when medicine such as antibiotics might not be available. But are Fish Antibiotics and other Pet Antibiotics Safe for humans? See the included video below for the Patriot Nurse's perspective. Keep reading to learn the best fish antibiotics for Doomsday survival, which antibiotics are less effective, dosages, and shelf life. Possible sources of fish antibiotics are provided along with recommended books & blogs related to correct dosages and other relevant information.

Thomas Labs & Fish Aid Are Two US Brands Of Fish Antibiotics

A mix of 12 bottles of Thomas Labs & Fish Aid fish antibiotics which are two US brands commonly purchased by doomsday preppers.

Why you might need it

In a Doomsday end of the world survival scenario, preppers may not have access to doctors and medicines including antibiotics. So many preppers are stockpiling fish and other pet antibiotics so that they will have access to antibiotics when they or their loved ones might get infections.

As an example, in the Doomsday post apocalyptic type situation, without access to doctors and medicine, a simple cut could get infected and a person could die as a result of the spreading infection that might otherwise easily be resolved with antibiotics.

So the thought by many preppers is that fish and other pet antibiotics would be a last resort to having no access to doctors and medication and possibly dying versus taking fish or other pet antibiotics and possibly curing the infection.


This information is for an end of the world Doomsday scenario only. Fish and other pet antibiotics should not be taken by humans during normal times like today during non-Doomsday, non-end of the world type situations when doctors and human medicine are readily available.

Even in a collapse of society when there is no access to modern medicine, hospitals, and doctors, if you decide to stockpile and use Fish Antibiotics for humans, that is entirely your own decision and risk. So please do your own research, as we are not responsible for the misuse of any medication including antibiotics or fish antibiotics.

Information From Dr. Ryan Chamberlain On Which Antibiotics Treat Which Infections (click to expand)

Here is information that we learned from Dr. Ryan Chamberlin for the best fish antibiotics for humans to stockpile for Doomsday:

  1. Doxycycline – All in all, Doxycycline is probably the most versatile drug for use in Survival Medicine. It is on the World Health Organization's List of Essential Medicines, a list of the most important medications needed in a basic health system. It treats most of the infectious diseases you can expect to be confronted with after a major disaster… and many more. From sinus and lung infections - including walking pneumonia - to Typhus, Cholera, Rocky Mountain Spotted Fever (RMSF), Lyme disease, Chlamydia, and Tularemia. Most importantly, Doxycycline is used for prophylaxis and treatment of the biological warfare agent Anthrax. Inhaled anthrax is treated with a combination of antibiotics (usually Ciprofloxacin and Doxycycline). Ideally, this combination is given by IV (intravenously) for inhaled Anthrax, but that type of treatment may not be available to Preppers when medical care is in short supply. In such cases, these antibiotics given in their oral forms will have to do. No one can say for sure though, as they have not been studied extensively for this condition. The same combination -but in oral form- is used to treat cutaneous (skin) anthrax, but usually only for 7 to 10 days, instead of 60. Very rarely, it can cause kidney impairment. It also predisposes people to sunburn (7-21%), and cannot be used during pregnancy, in nursing mothers, or in children under 8. Doxycycline is a reformulation of its older brother Tetracycline. The improved compound increased its spectrum of action (it kills more types of bacteria), and decreased the incidence of side effects. One negative about Doxycycline and any Tetracycline for that matter is that it can become toxic if it gets too old, whereas most other antibiotics just lose their effectiveness. (See “Fish Cycline”, "Fish Health Doxycycline", "Fishlife Doxycycline", "Fishman Chemical Doxycycline", or "Fish Doxy (EntirelyPets)" - Note: Read section below called "Powder vs. Liquids vs. Pills".

  1. Sulfamethoxazole & Trimethoprim (SMZ-TMP). Commonly available as the Sulfa based combination antibiotic - Bactrim and Bactrim DS - this medication is coming back into vogue in medicine. For decades it was abandoned in favor of newer and more expensive antibiotics. The fortunate consequence of its minimal use during the late 1980's, and up to the second decade of this century, was few bacteria ever came into contact with it. This meant they did not have much opportunity to develop a resistance to this antibiotic. Because of this, Bactrim's spectrum of action remains broad. It covers: ear infections, urinary tract infections (UTI), bronchitis and other respiratory infections, traveler's diarrhea, and shigellosis. Most importantly, it treats Methicillin-resistant Staphylococcus aureus (MRSA), which in the media is known as "multiple drug resistant staph." Sadly, one of the infections Sulfamethoxazole & Trimethoprim (Bactrim) doesn't treat, is Strep Throat. It's never been effective for that. Otherwise it would be a nearly perfect antibiotic for Preppers. Nevertheless, along with Doxycycline, this is another essential antibiotic for your med kit. Not because it has the ability to kill everything, but because few bacteria can mount a defense to it. Sulfamethoxazole/trimethoprim is an antibiotic combination containing a sulfonamide antibiotic and is good at killing sensitive bacteria. (See "Fish Sulfa Forte", "Thomas Labs Fish Sulfa Forte", "Fishaid Fish Sulfa", “Bird Sulfa”, or "Fish Sulfa Forte (EntirelyPets)").

  1. Ciprofloxacin (Cipro) – This one works best for: respiratory tract infections (such as bronchitis or pneumonia), urinary tract infections, prostate infections, diarrhea (bacterial), anthrax, and diverticulitis along with other infectious diseases of the colon (when combined with Metronidazole). Ciprofloxacin has been associated with some bizarre side effects, including the spontaneous rupture of the Achilles tendon, especially in people over the age of 60. For years, its use was universally avoided in children, as it's been associated with problems in growing bones, joints, and in the tissues around joints. Currently those restrictions have be relaxed at bit, but it's still not routinely given to children younger than 18 years, unless they have serious infections that cannot be treated with other antibiotics, or they have been exposed to aerosolized anthrax. It's also almost completely avoided in pregnant women and nursing mothers. (See "Fish Health Ciprofloxacin", "Fishbiotic Ciprofloxacin", “Fish Flox”, "Fixafin Fin Flox", or "Fish Flox & Fish Flox Forte (EntirelyPets)").

  1. Metronidazole (Flagyl) – Usually used to treat anaerobic bacterial infections, as well as many parasitic infections common in North America. It's routinely used in combination with Amoxicillin, Amoxicillin / clavulanate combinations (Augmentin), and / or Ciprofloxin, for treating diverticulitis and other bacterial infections of the intestines. Its name is derived from a feature of certain types of bacteria, ones adept at invading through the wall of the small intestine and colon to gain access to our blood stream. Those species usually have a tail, or "flagella", to help them puncture through the intestines (thus the name "Flagyl). Any two of the same combination (Amoxicillin - Ciprofloxin - Flagyl) are also probably effective for treating appendicitis (if surgical removal is not a possibility). Metronidazole is also useful in treating abscesses, particularly those of the feet and sometimes the oral cavity (dental abscesses). Additionally, Preppers find this antibiotic especially useful for treating Giardia, a parasitic infection commonly acquired from the streams and rivers of North American. Giardia can also be acquired from infected pets who've contracted the parasite from the same sources. Giardia causes diarrhea, sometimes severe enough to lead to dehydration. Though in most cases it results in a chronic and unrelenting diarrheal infection. Metronidazole is used to treat bacterial infections of the vagina, stomach, skin, joints, and respiratory tract. This medication will not treat a vaginal yeast infection. Finally, Metronidazole is a popular treatment for acute intestinal amebiasis (amebic dysentery) and amebic liver abscess. While used in both children and adults, it's generally not to be taken by pregnant women and nursing mothers. (See “Fish Zole", "Fish Zole Forte", Fixafin Fin Zole", or "Fish Zole & Fish Zole Forte (EntirelyPets)").

  1. Azithromycin (Z–Pak) -- Azithromycin is used to treat many different types of infections caused by bacteria, such as respiratory infections, skin infections, ear infections, and sexually transmitted diseases. Azithromycin treats respiratory and a variety of other infections Preppers can expect to face during catastrophes. These include, but are not limited to: Sinusitis, Bronchitis, Pneumonia, Syphilis, Typhoid, Chlamydia, Lyme Disease, and PID. Possible and common side effects include nausea, diarrhea, & abdominal pain - all of which are usually mild and rare. In 2013, the FDA released a warning about possible fatal cardiac arrhythmias associated with taking Azithromycin. While many antibiotics carry this same type of risk, the FDA warned that there would be an extra 47 heart-related deaths per one million courses of treatment with five days of Zithromax, as compared to 10 days of amoxicillin and other antibiotics. This is probably not of much concern to Preppers, unless they have a preexisting heart condition. While it’s a versatile antibiotic covering many different infections, it's often is hard to find. Fortunately is older brother, Erythromycin, treats the same types of infections and is available as the fish antibiotic Fish Mycin. (See "Fish Health Azithromycin" or "Fishlife Azithromycin").

  1. Erythromycin – Similar to Amoxicillin & Cephalexin, Erythromycin is also used to treat most respiratory infections - including walking pneumonia - as well as middle ear and some skin infections. Particularly useful is its ability to treat Lyme Disease and STI's like Chlamydia. It's safe for children and pregnant women. Erythromycin is similar to Azithromycin, but is taken twice a day instead of once a day, and has a little higher incidence of GI disturbance including: nausea, vomiting, diarrhea, and abdominal pain. Erythromycin belongs in a group of drugs called macrolide antibiotics. Macrolide antibiotics slow the growth of, or sometimes kill, sensitive bacteria by reducing the production of important proteins needed by the bacteria to survive. Erythromycin is used to treat or prevent many different types of infections caused by bacteria. (See "Fish Mycin", "Fishlife Erythromycin", or "Fish Mycin (EntirelyPets)"). - Note: Read section below called "Powder vs. Liquids vs. Pills".

Per Dr. Chamberlin, these antibiotics are less effective than the ones listed above:

  1. Cephalexin – Known as a "broad spectrum antibiotic", Cephalexin (Keflex) is useful for treating a number of respiratory infections including: strep throat, bronchitis, pneumonia, and middle ear infections. But like many broad spectrum antibiotics, bacterial resistance to the medication is currently high, and seems to be increasing yearly. It has the advantage of being safe for use in children and pregnant women, and has the added benefit of producing few side effects. Cephalexin is used to treat infections caused by bacteria, including upper respiratory infections, ear infections, skin infections, and urinary tract infections. (See "Fin Flex Fixafin", “Fin Flex Forte FixaFin” or "Fish Flex & Fish Flex Forte (EntirelyPets)") (Note: My wife had surgery in 2016, and developed a hematoma (blood clot) near the incision that became infected. Her doctor prescribed Keflex and it knocked out the infection).

  1. Amoxicillin – Amoxicillin is used to treat many different types of infection caused by bacteria, such as tonsillitis, bronchitis, pneumonia, gonorrhea, and infections of the ear, nose, throat, skin, or urinary tract. Covering (or treating) most of the same types of infections as Cephalexin, Amoxicillin also has the benefit of being safe for children and pregnant women. While it carries few side effects, many people have developed an allergy to it during childhood. If they ingest a dose later in life, they'll often develop a total body skin rash. Very rarely, a person might experience a much more violent allergic reaction known as anaphylactic shock. If you suspect you might be allergic to Amoxicillin, or any antibiotic in the Penicillin family, it's best to avoid the whole group completely. Instead, choose the next one on the list. (See "Fish Mox”, "Fixafin Fin Mox", "Fish Moxy", "FishaMox Forte", "Fish-Mox Forte", "Fixafin Fin Mox Forte", "Pet Balance 500mg 100ct", "AMOXFIN 500MG 50 Count", "Fishbiotic Amoxicillin", "Fishceuticals Moxifish", or "Fish Mox & Fish Mox Forte (EntirelyPets)").

  1. Ampicillin – Ampicillin is used to treat or prevent many different types of infections such as bladder infections, pneumonia, gonorrhea, meningitis, or infections of the stomach or intestines. Very similar Amoxicillin, Ampicillin is used to treat urinary tract infections, gastrointestinal infections, respiratory infections, bacterial meningitis, and more. Ampicillin is an improved formulation of the first mass produced antibiotic - Penicillin. Currently, Penicillin is only used for treating Syphilis, and in combination with Ciprofloxin or Doxycycline for treating Anthrax. In regards to bacterial infections, 95% of them are completely resistant to Penicillin. (See “Fish Cillin”, "Fishlife Ampicillin", "Fishbiotic Ampicillin", or "Fish Cillin (EntirelyPets)").

EntirelyPets has been a reliable source of Fish Antibiotics.

Dr. Joe Alton Discusses His Top Fish Antibiotics To Store

What is the Shelf Life of Fish Antibiotics? (click to expand)

Antibiotics typically have an expiration date between one to three years from when you purchase them. The expiration date is the last day that the manufacturer guarantees the full potency and safety of the antibiotic. Passing an expiration date does not necessarily mean that the antibiotic is no longer any good or safe, but that is a risk that would have to be taken if antibiotics were used beyond that time.

When an antibiotic is past its expiration date the potency will decrease over time causing it to be less effective. In the case of Tetracyclines, such as Doxycycline, they can become toxic if it gets too old, so be very aware of that. Studies performed by the Food and Drug Administration (FDA) revealed that 90% of medications tested were perfectly fine to use 8-to-15 years after the expiration date.

The FDA tested more than 100 medications, both prescription and non-prescription, and continues to study the issue today. The exceptions were mostly in liquid form (antibiotics included, but also insulin, nitroglycerine and some others). Storing antibiotics and other medications in a cool, dry, and dark environment such as an air conditioned environment or refrigerator, can possibly extend their usable time frame.

Freezing any medication is a bad idea as is leaving your antibiotics in a hot garage or humid basement, or in see through prescription bottles in lighted areas. At a minimum it may be wise to store antibiotics in an air conditioned room in a dark and dry place. Some even recommend storing antibiotics in a refrigerator as a first choice.

We are not going to give any advice on whether you should or should not use antibiotics before or past their expiration date. Some people might in a Doomsday end-of-world situation given the kind of choice that might have to be made, i.e., uncontrolled infection and no doctors or hospitals available versus the dangers of an antibiotic past its expiration date.

This article from the Survival Doctor provides an "Investigative Report: Do Antibiotic Expiration Dates Matter?". The article includes a chart of average extension times of antibiotics past their expiration dates and notes that there are many variables that can make this data vary. The article states the chart was compiled from a 2006 report published in the Journal of Pharmaceutical Sciences. Update: The Survival Doctor article appears to have disappeared. You can do searches on this topic and find articles and information from the FDA and other sources.

Note that TopSurvivalPreps has no expertise in antibiotic expiration dates and extension times past expiration and considers this article from the Survival Doctor as informational. This just gives you an example of how long one website states how long fish antibiotics will last beyond expiration and also explains the many variables that can impact these time frames.

Powder vs. Liquids vs. Pills? (click to expand)

It is not even possible to tell what fillers and chemicals are used in fish antibiotics in powder or liquid form, so stockpiling and/or taking powder and/or liquid antibiotics seems to add more risks. If you decide to buy fish antibiotics to stockpile for Doomsday (and we are not recommending that you should), perhaps it is wiser to make certain they are in pill form. Other articles mention using a Pill Book or similar resource to match pills with pictures of human pills to make sure they appear to be exactly the same. That kind of comparison cannot be made with powders or liquids. Comparing the actual pills with pictures of the same human pills seems like another idea to reduce risks.

In Preparation for a Doomsday End-of-World Situation, Where do you get Dosage and Indications Information? (click to expand)

If you find yourself in a SHTF situation, there are no doctors or hospitals, and you are on your own to battle an infection, and you are willing to take the associated risks as a prepper, you would want to have printed dosages and instructions available.

Several good books are recommended further down this page, but if you want information for free, at a minimum you may want to print out the entire drug card (dosages and indications) for each medication from a reputable source such as or and keep that info stored with the drug.

At the home page, just click on the appropriate first letter of the drug name at the top of the web page where it indicates "Browse all medications: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9". Then pick the exact drug name from the list, then select the Dosage tab, and finally print the entire set of pages so that for any condition, it lists the dosages and duration.

This link for takes you to an example page for Amoxicillin and has tabs for indications and dosage, plus pictures of different variations of Amoxicillin. Just locate other medications on the Drug A-Z list on the site or a similar site of your choice as needed.

USA Manufacturer Sources Of Fish Antibiotics & USP Certification (click to expand)

Possible US Sources of Fish Antibiotics

Thomas Labs

Fish Antibiotics have become more expensive, possibly due to their popularity as a prepping and long term survival item to stockpile. If you make your own decision to purchase fish antibiotics, the following are some possible sources (of many available sources). The Patriot Nurse does recommend that fish antibiotics only be purchased from US manufacturers such as Thomas Labs. Additional research would be required by you to determine which fish antibiotics are appropriate for which infections, dosages, durations, etc.

Fish Aid brand

Another company in the United States is Goldman Pharmaceutical Group which distributes Fish Aid brand antibiotics and claims on their website the following:

Fish Aid Antibiotics is a full line of USP certified antibiotics for aquarium fish.

Various forms, strengths and dosing are made ready for your convenience.

The widest variety of Fish Antibiotics to accommodate your needs

USP grade antibiotics that you can trust in Quality and safety

USA, FDA registered and state inspected facility

What does USP Certification mean?

See the USP Dietary Supplement Verification Program web page.

Where To Buy Fish Antibiotics Online (click to expand)

Be sure to compare prices.

  • EntirelyPets - A US company that sells US manufacturer (Thomas Labs) and Fish Aid brand fish antibiotics (some hard to find) and typically at the lowest prices! Free shipping on orders over $69 & 30-day return policy. Plus they have customer service phone support.

  • ThomasLabs - Great source of USP grade Fish Antibiotics, but EntirelyPets sells Thomas Labs Fish Antibiotics usually at a lower price than you will find anywhere.

  • SHTFsource was recommended by the Patriot Nurse in the You Tube video below.

  • VetDepot Per's FAQ page "Are your products the same as my Vet carries? Yes - All products we sell are the same that your local vet or pet store carry. We only sell medications approved by the United States EPA and FDA. Although some of the most popular products are available at lower prices overseas, importing them is illegal and there is no way of insuring their integrity or freshness."

  • Your local Pet Store

  • Most likely, no longer carries Fish Antibiotics, but the link to the left has the correct search term embedded.

Are Fish Antibiotics The Same As Human Antibiotics? (click to expand)

Are Fish Antibiotics The Same As Human Antibiotics?

Both and have Pill Identifier tools that will show pictures of all of the variations of any drug for pills made for human prescription. has a comprehensive list of pictures of the pills for most medications including antibiotics. The same goes for, for most medications, there is a section included where you can scroll through pictures of all of the different pills for that medication.

Other articles and YouTube videos mention using a Pill Book or similar resource to match pills with pictures of human pills to make sure they appear to be exactly the same. Fish Antibiotics are alleged to have the same USP grade.

If the antibiotics for fish are the same as the USP grade antibiotics that are dispensed from human pharmacies then why should humans not take them also?

What Does US Law Say?

The law clearly states that any antibiotic for non-human use needs to be labeled as “not for human use” regardless of application.

What Could Go Wrong?

Using Thomas Labs as an example, Thomas Labs sources it’s antibiotics from the same USP grade manufacturing as antibiotics used for humans, but we and Thomas Labs are not doctors and do not deal in human health problems, or prescription medications. Only a doctor can correctly prescribe antibiotics for specific need in humans. We strongly discourage anyone who wants to take Fish Antibiotics for themselves in a non-Doomsday end of the world situation like now. Misdiagnosing, or self-treatment and misuse of antibiotics can be harmful to your health and in extreme conditions or allergies could cause death. You could also take the wrong dosage of a correct antibiotic or for the wrong duration, any of which could be dangerous or lethal or lead to secondary infections or medical conditions. If you need a medication for yourself please visit a doctor and take the human prescriptions they prescribe while we are not in a Doomsday scenario. Pill Images For 49 Versions Of Amoxicillin

Both and have Pill Identifier tools including this example of Amoxicillin pill pictures with 49 different looking pill variations of the same medicine. & Are Very Good Medication Sites.

These are two highly recommended sites for all of your medications. Both of these sites typically provide the following types of information about practically any medication.

  • Drug Descriptions

  • Indications

  • Dosages

  • Side Effects

  • Drug Interactions

  • Warnings & Precautions

  • Over Dosage & Contraindications

  • Clinical Pharmacology

  • Medication Guides

Are There Other (Non-Antibiotic) Pills To Treat Infections? (click to expand)

Dr. Christopher's Infection Formula (X-INFX).

Looking at the Amazon feedback, a lot of people swear by Dr. Christopher's Infection Formula (X-INFX). Dr. Christopher also has other natural health supplements that are well liked.

Here is a fascinating book on this topic.

In the days before antibiotics not everyone died of their infections. There were scores of great, workable non-drug solutions to infections. These remedies still work! You need to get to know them, get re-acquainted with our folklore and natural heritage again and fast.

Added Tips

See this link for Survival Medicine recommended for Preppers including for infections, parasites, fungal conditions, radiation poisoning, insect bites, poisonous plants, burns, bleeding, and more.

Here are two additional medications that Dr. Ryan Chamberlin recommends for preppers to stockpile for a Doomsday survival situation when SHTF, as described on his blog post "Five Secrets Preppers Must Know About Fish Antibiotics"

    • Vermox (Mebendazole) Note: Vermox is an anti-parasitic medication for pinworms and is a "human" medication that can be purchased Over-the-Counter (OTC).

    • Diflucan (Fluconazole) Note: Diflucan is an fish antifungal medicine in tablet form that is used to treat a variety fungal infections, including yeast infections.

NOTE: If Amazon does not have the above medications, you may be able to find Vermox at your local pharmacy or do a search online for both Vermox and Diflucan as there are plenty of online options to purchase these two medications.

NOTE: A lot of people swear by Dr. Christopher's X-INFX Infection Caplets to cure infections, especially tooth infections. See the Amazon Feedback (over 7000 feedbacks) for numerous positive testimonials.

Dr. Christopher's X-INFX Infection Formula

Dr. Christopher's X-INFX Infection Caplets bottle with 100 caplets might be stockpiled by some doomsday preppers.

Recommended Books Concerning Fish Antibiotics For Preppers (click to expand)

Recommended Books

As mentioned earlier in this article, the following book is the best book in our opinion for detailed information concerning Fish Antibiotics for preppers.

The following Mini Medical School survival book by Dr. Ryan Chamberlin includes information on antibiotics used by preppers:

Additionally, the following books might be helpful for determining proper human dosages and duration for most medications including antibiotics:

The following survival medicine book includes a chapter on stockpiling medications and how to take antibiotics, what each common antibiotic is for, and what the correct human dosages are:

Most Helpful Book On Fish Antibiotics & Use

NOTE: If we could only have one book that educates preppers on Fish Antibiotics and their use, it would be the following book written by Dr. Joseph Alton MD. This book includes the basics of antibiotics, identifying many different kinds of infections that would be encountered in a Doomsday environment, which antibiotics treat which infections, instructions & dosages & how long to take each antibiotic, proper drug storage, using expired drugs, wound care, and more. This book is simple to read in layman's terms. Additional recommended books are listed further down in this article.

Best Book To Educate Preppers On Fish Antibiotics & Use

The Alton's Antibiotics and Infectious Disease book identifies infections that would be encountered in a Doomsday survival scenario and which antibiotics treat them.

Recommended Blogs (click to expand)


The following blog site has not been maintained for several years, but the medical advice on it is top notch.

I recommend that you read Dr. Ryan Chamberlin's blog ThePrepperPages if you are interested in free and exceptional survival medical advice. See the 1st Blog post (link immediately below) from for more details from Dr. Ryan Chamberlin concerning using fish antibiotics for humans. Dr. Chamberlin includes a PDF file in the 1st Blog post with more information and his recommendations. The 2nd Blog post concerns coping with Dental Pain, Broken Teeth, and Other Dental Emergencies. The 3rd Blog post concerns 5 Critically Important Secrets Preppers Must Know About Fish Antibiotics for Doomsday Survival.

Important Note

To see more medical items that Dr. Ryan Chamberlin (trauma surgeon) recommends for preppers, click "Medical & Dental" in the navigation bar in the upper left. Dr. Chamberlin collaborated with this site several years ago, and the medical items he recommended were added to

Does Amazon Ever Sell Fish Antibiotics? (click to expand)

Fish Antibiotics that were historically sold on

This may be a history lesson now, but as late as 2017, Amazon sold all of the Fish Antibiotics below online (do a search on as they may be available now) LOL!

  • 100mg Fish Health (Doxycycline) 50 Count

  • 100mg Fishman Chemical (Doxycycline) 50 Count

  • 100mg FishLife (Doxycycline) 30 Count

  • 100mg Fish Cycline (Doxycycline) 100 Count

    • 250mg Fishlife (Azithromycin) 30 Count

  • 500mg Fish Health (Azithromycin) 12 Count

  • 250mg FishLife (Erythromycin) 30 Count

  • 250mg Fish-Mox (Amoxicillin) 100 Count FixaFin Fin Mox

  • 250mg Fish-Mox (Amoxicillin) 100 Count Fish Aid Gill Mox

  • 500mg Fish-Mox Forte (Amoxicillin) 50 Count Amoxfin

    • 500mg Fish-Mox Forte (Amoxicillin) Pet Balance 100ct

  • 500mg Fish-Mox Forte (Amoxicillin) 30 Count Fishbiotic

  • 500mg Fish-Mox Forte (Amoxicillin) 30 Count Fishceuticals Moxifish

  • 500mg Fish Moxy Forte (Amoxicillin) 30 Count

  • 500mg Fish-Mox Forte (Amoxicillin) 100 Count FishaMox

  • 500mg Fish-Mox Forte (Amoxicillin) 100 Count FishAid

    • 250mg Fish Flox (Ciprofloxacin) 60 Count Fishbiotic

    • 500mg Fish Flox Forte (Ciprofloxacin) 50 Count Fish Health

    • 500mg Fish Flox Forte (Ciprofloxacin) 30 Count Fixafin Fin Flox

    • 250mg Fish Flex (Cephalexin) 100 Count Fin Flex Fixafin

    • 500mg Fish Flex Forte (Cephalexin) 30ct Fin Flex Forte FixaFin

    • 500mg Fish Flex Forte (Cephalexin) 100ct

    • 250 mg Fish Zole (Metronidazole) (Flagyl) 60 Count Fixafin Fin Zole

    • 500 mg Fish Zole Forte (Metronidazole) (Flagyl) 60ct

  • Fish Sulfa Forte (800mg of Sulfamethoxazole and 160mg of Trimethoprim) Thomas Labs 100 Count

  • Fish Sulfa Forte (800mg of Sulfamethoxazole and 160mg of Trimethoprim) 30 Count

NOTE: Other survival books and blogs had mentioned the following additional useful antibiotics in a Doomsday long term survival scenario.

  • 100mg Bird Biotic (Doxycycline) Biotreats Powder 30 Packets

  • 250mg Fish Biotic (Ampicillin) 60 Count

Additional YouTube Videos

Dr. Bones & Nurse Amy (Dr. Joe Alton and Amy Alton, ARNP) Discuss Fish Antibiotics

How to treat soft tissue infections (cellulitis, abscess) with antibiotics as well as incision and drainage.

Warning: Graphic Video

Note: The two videos below from the Patriot Nurse are not available to watch here, but you can click the "Watch on YouTube" links below.

The following YouTube video is advice from the Patriot Nurse on the best Fish Antibiotics for humans for Doomsday & long term survival.

The following YouTube video is advice from the Patriot Nurse on the top 5 Antibiotics for stockpiling & storage.

Caution & Warning

Please note that the information provided on this web page is for information only. and it's owner have no liability or responsibility for the accuracy of information on this web site nor for anyone using any items described on this web site including fish and other pet antibiotics or any human medications. Anyone viewing the content of this web page is responsible for doing their own research and for making their own decisions including purchasing and using fish antibiotics or any other pet antibiotics or medications for human consumption. Please note that all fish and pet antibiotics are labeled "Not For Human Use", so if you decided to use them for human use, it would be at your own risk. In our opinion, fish and other pet antibiotics should not be taken during normal times like today (during non-Doomsday, non-end of the world type situations when doctors and human medicine are readily available). In our opinion, people should definitely see their doctors to determine what ailments they have and what appropriate medical advice, instructions, treatment and prescriptions are needed, and they should not try to be their own doctor. Instead during normal times (like now) people should let their doctor decide when they need antibiotics and for the correct dosage and duration. Anyone taking antibiotics or medications without the advice from their own doctor is taking a risk including that they are either taking antibiotics or medications unnecessarily or they taking the wrong antibiotic or medication or they are taking the wrong dosage or for the wrong duration, any of which could be dangerous or lethal or lead to secondary infections or medical conditions.

Fish Antibiotic Pictures

Thomas Labs “Fish Flex Forte” Cephalexin Fish Antibiotics Bottle
FishAid Doxycycline Fish Antibiotics Bottle
FishAid Metronidazole (Flagyl) Fish Antibiotics Bottle
FishAid Amoxicillin Fish Antibiotics Bottle
A mix of 8 Thomas Labs Fish Antibiotics Bottles
Thomas Labs “Fish Sulfa Forte” Sulfamethoxazole & Trimethoprim (SMZ-TMP) Fish Antibiotics Bottle
Thomas Labs “Fish Mox Forte” Amoxicillin Fish Antibiotics Bottle
Thomas Labs “Fish Cin” Clindamycin Hydrochloride Fish Antibiotics Bottle
FishAid Clindamycin Fish Antibiotics Bottle
FishAid Ciprofloxacin (Cipro) Fish Antibiotics Bottle
Thomas Labs “Fish Zole” Metronidazole (Flagyl) Fish Antibiotics Bottle
Thomas Labs “Fish Flox Forte” Ciprofloxacin (Cipro) Fish Antibiotics Bottle
Thomas Labs “Fish Cillin” Ampicillin Fish Antibiotics Bottle
FishAid Cephalexin Fish Antibiotics Bottle

If You Liked This Article

Take a look at our article on Survival Medicines & Medical Products To Stockpile For Doomsday.

Best emergency survival medicine & medications to Stockpile for Doomsday preppers when there is no doctor.

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