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Ranitidine is an acid reducer that treats ulcers in the stomach and intestines. This medication is also used to treat inflammation of the stomach and esophagus. Ranitidine reduces stomach acid allowing for existing ulcers to heal, and may also prevent ulcers from forming. Ranitidine is not FDA approved for use in veterinary medicine however, it is a commonly accepted practice for veterinarians to prescribe this medication for dogs and cats. Ranitidine can be prescribed to treat ulcers in horses
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Item# Size/Desc Qty Price
150 mg 100 cnt bottle
This item requires a RX
300 mg 100 cnt bottle
This item requires a RX
300 mg 250 cnt bottle
Item qualifies for FREE SHIPPINGThis item requires a RX

**Note: This product requires a veterinarian's prescription to purchase.At checkout you will need to provide your veterinarian's FAX or email address. We will then send him or her a prescription verification that he or she will need to sign and return before we can ship you this product.

Dosage and Administration:


All weights Give 0.25 to 1 mg of Ranitidine for every pound of your pet's weight, every 8 to 12 hours.


All Weights Give 5-10 mg /kg 2 to 4 times a day


Ranitidine should not be used in animals allergic to it. Use Ranitidine with caution in animals with heart, kidney, or liver disease. Use with caution in pregnant females.

Possible Side Effects:

For dogs and cats, if any of the following serious side effects occur, stop giving Ranitidine and seek emergency veterinary medical attention an allergic reaction difficulty breathing swelling of the lips tongue or face hives. Side effects are rare but may include diarrhea or irregular heartbeat. Other side effects may also occur. Talk to your veterinarian about any side effect that seems unusual or bothersome to the animal.

Possible Drug Interactions:

Notify your Veterinarian if your pet is being given antacids, acetaminophen, ketoconazole or itraconazole, metoprolol, nifedipine, propantheline, and long term use of Vitamin B12, as interactions can occur. Give Ranitidine 2 hours before or 2 hours after the other medications. When given with azathioprine, Ranitidine may further decrease white blood cell counts. Drugs other than those listed may also interact with Ranitidine. Talk to your veterinarian or pharmacist before giving any prescription or over the counter medicines including vitamins, and supplements..

Active Ingredients

Ranitidine 150 mg as ranitidine hydrochloride 168 mg

Inactive Ingredients

Collodial silicon dioxide, croscarmellose sodium, diethyl phthalate, FD&C yellow #6, hypromellose, iron oxide red, magnesium stearate, microcrystalline cellulose and titanium dioxide.