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Educational Articles

Dogs + Medications & Supplements

  • Chemotherapy drugs are used to treat cancer and other conditions in people because they target and kill rapidly dividing neoplastic (cancer) cells and other cells. They are primarily used as anti-cancer agents but may also provide benefits for a variety of auto-immune disorders and organ transplant recipients as immunosuppressive agents.

  • 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.

  • Chloramphenicol is given by mouth or injection and is used on and off-label to treat bacterial infections. Give as directed. Common side effects include vomiting, diarrhea, and decreased appetite. Do not use in pets with blood disorders, in pediatric or geriatric animals, or in pregnant or nursing females. If a negative reaction occurs, please call your veterinarian.

  • Chlorhexidine + ketoconazole topical is used to treat superficial skin infections or overgrowth in dogs and cats. When given as directed, side effects are rarely noted, but could include skin irritation. If you suspect an overdose or accidental ingestion, call your veterinary office immediately.

  • Chlorhexidine topical (brand names Chlorhex®, Novalsan®, ChlorhexiDerm®) is an antiseptic used to treat skin infections. It is used to treat surface bacterial and/or fungal skin infections in cats and dogs. This medication may be part of a combination product that includes other medications. Chlorhexidine topical comes in shampoo, liquid, ointment, and wipe form.

  • Chlorothiazide/hydrochlorothiazide is given by mouth or injection and is used off label to treat nephrogenic diabetes insipidus, high blood pressure, fluid retention, and certain electrolyte imbalances. Give as directed by your veterinarian. Common side effects include electrolyte imbalances, increased need to urinate, vomiting, or diarrhea. Do not use in pets that are allergic to them or sulfa drugs, in lactating pets, or in pets that are not able to make urine. 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.

  • Choline is a vitamin supplement given by mouth and is used over the counter to treat neurological conditions such as seizures or cognitive dysfunction. Give as directed by your veterinarian. Side effects are uncommon but may include hyperactivity. Do not use in pets that are allergic to it. If a negative reaction occurs, please call your veterinary office.

  • Cimetidine is given by mouth and is used off label to treat various gastrointestinal conditions related to acid production, such as ulcers and reflux. Side effects are uncommon and have not been documented in animals. Do not use in pets that are allergic to it or other histamine2 blockers. If a negative reaction occurs, please call your veterinary office.