10 Common Digestive Disorders. Epigastric pain is not a serious symptom on its own. However, if it occurs with other life-threatening symptoms, it may be a sign of a condition that should receive immediate medical treatment, such as a heart attack.
SIDE EFFECTS. The most common adverse reactions of fenfluramine are drowsiness, diarrhea, and dry mouth. Less frequent adverse reactions reported in association with fenfluramine are:
Antihistamine and Drowsiness. The most common side effect of an antihistamine is drowsiness. Antihistamines such as diphenhydramine and chlorpheniramine are more likely to cause drowsiness than any of the newer antihistamines available. This unwanted side effect of drowsiness occurs less frequently with the newer antihistamines such as citrizine, desloratadine, fexofenadine and loradtadine.