Diphenhydramine - Indications, Dosage, Side Effects and Precautions

• Caution should be exercised in patients with history of asthma, lung disease, increased eye pressure, ulcer, difficulty in urinating, enlarged prostate, heart disease, high blood pressur‍‍‍‍‍‍​​​‍​​​​​​e, seizures, overactive thyroid, any allergy, who are taking other medications, during pregnancy and breastfeeding. • It may cause dizziness or drowsiness, do not drive a car or operate machinery while taking this medication. • Avoid alcohol consumption. • Topical • Avoid contact with eyes and mouth. • Avoid using in patients with chickenpox, measles.