These medical condition or symptom topics may be relevant to medical information for Drug intoxication: 1  Drug. 2  Drug symptoms (36 causes) 3  Intoxication.
Side effects of famotidine are rare. The most commonly reported minor side effects are: constipation, diarrhea, fatigue, headache, insomnia, muscle pain, nausea, and ; vomiting. Other important side effects include: anemia, confusion, easy bruising or bleeding, hair loss, rash, More serious side effects include: depression, hallucinations,
For dogs and cats, if any of the following serious side effects occur, stop giving famotidine 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 loss of appetite and tiredness.