McNeil | Diphenhydramine (Medication)
Diphenhydramine is an antihistamine. Diphenhydramine blocks the effects of the naturally occurring chemical histamine in the body. Diphenhydramine is used to treat sneezing; runny nose; itching, watery eyes; hives; rashes; itching; and other symptoms of allergies and the common cold.
Diphenhydramine is also used to suppress coughs, to treat motion sickness, to induce sleep, and to treat mild forms of Parkinson’s disease….
Diphenhydramine: Side Effects
Diphenhydramine can commonly cause sedation, tiredness, sleepiness, dizziness, disturbed coordination, drying and thickening of oral and other respiratory secretions, and stomach distress. Diphenhydramine may also cause low blood pressure, palpitations, increased heart rate, confusion, nervousness, irritability, blurred vision, double vision, tremor, loss or appetite, or nausea.
Other, less serious side effects may be more likely to occur. Continue to take diphenhydramine and talk to your doctor if you experience sleepiness, fatigue, or dizziness; headache; dry mouth; or difficulty urinating or an enlarged prostate….
Diphenhydramine should be used with caution in persons with narrow-angle glaucoma, prostatic hypertrophy, hyperthyroidism, cardiovascular disease, hypertension, and asthma.
Use caution when driving, operating machinery, or performing other hazardous activities. Diphenhydramine may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities. Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while taking diphenhydramine.
During pregnancy and breastfeeding is not recommended to use this medicine without your doctor’s advice….