Pfizer | Benadryl (Medication)


Benadryl/diphenhydramine is used alone or with other medications to treat shaking (tremor) and muscle stiffness caused by Parkinson's disease. It may also be used to treat side effects of certain psychiatric drugs such as involuntary movements and muscle stiffness.

Benadryl temporarily relieves these symptoms due to hay fever or other upper respiratory allergies runny nose, sneezing, itchy, watery eyes, itching of the nose or throat. It also relieves temporarily runny nose and sneezing symptoms due to the common cold. ...

Side Effect:

Benadryl commonly cause sedation, tiredness, sleepiness, dizziness, disturbed coordination, drying and thickening of oral and other respiratory secretions, and stomach distress. ...


Before using this medication, tell your doctor if you have a breathing problem such as emphysema or chronic bronchitis; glaucoma; trouble urinating due to an enlarged prostate gland; high blood pressure, liver disease, mental/mood changes, seizures, stomach problems (e. g. , ulcers, obstruction), an overactive thyroid gland, difficulty urinating (e. g. , due to an enlarged prostate gland).

This drug may make you dizzy or drowsy or cause blurred vision. During pregnancy and breastfeeding is not recommended to use this medicine without your doctor's advice. ...