What is Diphenhydramine?

(dye fen HYE dra meen)

• This medicine is used to stop coughing.

• This medicine is used to relieve allergy symptoms.

• This medicine is used to relieve motion sickness.

• This medicine is used to treat hives.

• This medicine is used to treat itching.

• This medicine is used to treat Parkinson's disease.

• This medicine is used to treat swelling of the face, lips, tongue, or throat.

• This medicine is used to treat sleep disorders.

What are the precautions when taking this medicine?

All forms:

• Check medicines with healthcare provider. This medicine may not mix well with other medicines.

• Tell healthcare provider if you are pregnant or plan on getting pregnant.

Oral and injection:

• Wear disease medical alert identification.

• If you are 65 or older, use this medicine with caution. You could have more side effects.

• If you have an enlarged prostate, talk with healthcare provider.

• If you have glaucoma, talk with healthcare provider.

• If you have heart disease, talk with healthcare provider.

• If you have high blood pressure, talk with healthcare provider.

• If you have an intestinal blockage, talk with healthcare provider.

• If you have PKU, talk with healthcare provider. Some products...