Educational Articles

Horses + Medications + English

  • Ammonium chloride is used off label and given by mouth to treat metabolic alkalosis, struvite stones, and certain toxicities occasionally in small animals and more often in large animals. The most common side effects include pain at the injection site or stomach upset if given by mouth. Do not use in pets with severe liver, kidney, heart, or lung disease. If a negative reaction occurs, please call your veterinary office.

  • Bethanechol chloride is given by mouth or injection and is used off label to increase urinary or intestinal movement/activity. Give this medication as directed by your veterinarian. Common side effects include vomiting, diarrhea, drooling, and lack of appetite. Do not use in pets that are allergic to it, or have urinary obstruction, stomach ulcers, gastrointestinal obstructions, intestinal inflammation, or recent intestinal, stomach, or bladder surgery. If a negative reaction occurs, please call your veterinary office.

  • Bismuth compounds are given by mouth and are used on and off label to treat diarrhea and upset stomach. Give as directed by your veterinarian. The most common side effects include discolored stools and constipation. Do not use in pets that are allergic to it or other NSAIDs, or in pets that have a stomach or intestinal ulcer. If a negative reaction occurs, please call your veterinary office.

  • Buprenorphine is used on and off label and is given by mouth into the cheek or injection to treat pain or as a preanesthetic. The most common side effect is sleepiness. Do not use in pets that are allergic to it or other opioids, or in pets being treated with amitraz. If a negative reaction occurs, please call your veterinary office.

  • Carbamazepine is given my mouth and is used off label in dogs, cats, and horses to treat seizures, pain, and behavior disorders. Common side effects in animals are unknown, but may include dizziness, sleepiness, nausea, and vomiting. Do not use in pets that have recently used amitraz, are pregnant, or have bone marrow disease. If a negative reaction occurs, please call your veterinary office.

  • Carprofen is used on and off label and is given by mouth in the form of a tablet to treat pain and inflammation. The most common side effects include vomiting, diarrhea, and decreased appetite. Do not use this medication in pets with bleeding disorders, in pets that are allergic to it or other NSAIDs in the same class, or in pets concurrently using corticosteroids or other NSAIDs. If a negative reaction occurs, please call your veterinary office.

  • Chlorambucil is given by mouth and is used off label to treat certain types of cancer and autoimmune diseases. Common side effects include fur loss and changes in hair coat, as well as gastrointestinal upset. Do not use in pets that are allergic to it or other alkylating medications, that have bone marrow disease, have an active infection, or that are pregnant or lactating. If a negative reaction occurs, please call your veterinary office.

  • Chlorpheniramine maleate is given by mouth and is used off label to treat allergic conditions or as a mild sedative. Common side effects include sleepiness, although other side effects are possible. Do not use in pets that are allergic to it or other similar antihistamines, or pets that are undergoing allergy testing within 2 weeks. If a negative reaction occurs, please call your veterinary office.

  • Chlorpromazine is given by mouth or injection and is used off label as a sedative and to treat vomiting. Common side effects include tiredness, low blood pressure, low heart rate, or a tendency to react or startle to noises. Chlorpromazine should not be used in pets that are allergic to it or in pets with low blood pressure. If a negative reaction occurs, please call your veterinary office.

  • Clarithromycin is given by mouth and is used off label to treat certain bacterial infections in several animal species. Side effects include diarrhea, vomiting, appetite changes, stomach pain/cramps, or skin redness in cats. Do not use in pets that are allergic to it or other macrolide antibiotics, in rabbits, gerbils, guinea pigs, hamsters, or horses greater than 4 months old. If a negative reaction occurs, please call your veterinary office.