Diphenhydramine

Diphenhydramine is an antihistaminic medication. It blocks the action of certain chemical messengers that are responsible for inflammation, congestion, itching, and other allergic reactions.

Common side effects of Diphenhydramine

Dizziness, Drowsiness, Dryness in mouth, Difficulty in paying attention, Fatigue, Headache, Sedation, Unsteadiness, Impaired coordination, Epigastric pain, Increased bronchial secretions, Dry mucous membrane, Constipation, Euphoria (feeling of intense excitement and happiness), Abnormality of voluntary movements, Discomfort when urinating, Hypotension (low blood pressure), Double vision, Diaphoresis, Erectile dysfunction, Early menstrual periods, Decreased appetite, Allergic sensitization, Photosensitivity