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,
General Description. Famotidine is a histamine (H2) blocker that is used to prevent and treat stomach and intestinal ulcers.ow It Works. Histamine is a key component in the allergic reaction, causing inflammation and swelling. It can often cause stomach cramping and diarrhea as well. By inhibiting the H2 receptor, a receptor for histamine, Famotidine reduces the output of stomach acid.