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Educational Articles

Dogs + Medications & Supplements

  • Ciprofloxacin is a systemic fluoroquinolone antibiotic used to treat bacterial infections. It is often given by mouth, but an injectable form is also available. The most common side effect is gastrointestinal distress, but other side effects are possible. It is contraindicated in young or dehydrated pets, or in pets with liver or kidney disease. It should not be the first-choice fluoroquinolone for veterinary patients.

  • Cisapride is used off label and is given by mouth to treat gastrointestinal motility disorders in cats, dogs, and small mammals. Common side effects include vomiting, diarrhea, and abdominal discomfort. Do not use in pets that are allergic to it or in pets with conditions that would be made worse by increased intestinal movement. If a negative reaction occurs, please call your veterinary office.

  • Clarithromycin is given by mouth and used off label to treat certain bacterial infections in several animal species. Do not use in pets that are allergic to it or other macrolide antibiotics, in rabbits, gerbils, guinea pigs, hamsters, or horses more than four months old.

  • Clindamycin is an antibiotic used to treat a range of bacterial infections in dogs and cats. It is often used to treat wounds, pyoderma, abscesses, bone and dental infections, and toxoplasmosis. Its use to treat certain infections, such as toxoplasmosis, is off label or extra-label. Clindamycin is available in oral liquid, tablets, and capsules. It has a very bitter taste, so you may need to disguise the medication in food. It is important to never give a cat a dry pill, if using capsules or tablets, as it can damage the esophagus, the muscular tube that delivers food from the mouth to the stomach (esophagitis). If you suspect an overdose or an adverse reaction to the medication, call your veterinary office immediately.

  • Clindamycin topical (brand names ClinzGard®, others) is an antimicrobial used to treat bacterial skin infections, acne, anal sac abscesses, and other wounds in cats and dogs. Clindamycin topical comes in variety of forms.

  • Clomipramine is given by mouth and is used on and off label to treat behavior disorders such as obsessive-compulsive disorders, anxiety, aggression, and urine marking. Common side effects include lack of appetite, vomiting, diarrhea, constipation, dry mouth, elevated liver enzymes, difficulty urinating, or tiredness. Do not use in pets that are allergic to it or other tricyclic antidepressants, in breeding males, in pets with a history of seizures, or concurrently with monoamine oxidase inhibitors such as amitraz flea collars. If a negative reaction occurs, please call your veterinary office.

  • Clonazepam is given by mouth and is used off label to treat seizures and certain behavioral disorders. Common side effects include sleepiness, incoordination, drooling, excitement, or increased appetite. Do not use in pets that are allergic to it or other benzodiazepines or in pets with significant liver disease. If a negative reaction occurs, please call your veterinary office.

  • Clonidine is a medication that is used to treat behavioral disorders in dogs, particularly anxiety or phobia-related. Give as directed. Side effects are generally mild if present and include sedation, lethargy, agitation/excitation, aggression, and constipation. Monitoring blood pressure as well as heart rate and rhythm is recommended with chronic use. If you suspect an overdose or an adverse reaction to the medication, call your veterinary office immediately.

  • Clopidogrel is given by mouth in the form of a tablet or compounded liquid and is used off label to prevent abnormal blood clots in dogs, cats, and horses. Give as directed by your veterinarian. Common side effects include vomiting, diarrhea, or lack of appetite. Do not use in pets that are allergic to it or that have bleeding problems. If a negative reaction or bleeding occurs, please call your veterinary office.

  • Clorazepate is given by mouth and is used off label to treat epilepsy and various behavior disorders. Give as directed by your veterinarian. Common side effects include sleepiness and incoordination. Clorazepate should not be used in pets that are allergic to it or other benzodiazepines or in pets with significant liver disease. If a negative reaction occurs, please call your veterinary office.