Bipolar Disorder

  1. Home
  2. Health
  3. Bipolar Disorder

Benadryl / Diphenhydramine Side Effects

Bipolar Medications Library

By Kimberly Read & Marcia Purse, About.com

Updated: June 19, 2006

About.com Health's Disease and Condition content is reviewed by the Medical Review Board

Note: Some medications related to Diphenhydramine are mentioned below.

Common Side Effects:

Check with your doctor if any of the following side effects continue or are bothersome:

Drowsiness; thickening of mucus

Less Common or Rare Side Effects:

Check with your doctor if any of the following side effects continue or are bothersome:

Blurred vision or any change in vision; confusion; difficult or painful urination; dizziness; dryness of mouth, nose, or throat; fast heartbeat; increased sensitivity of skin to sun; increased sweating; loss of appetite; nightmares; ringing or buzzing in ears; skin rash; stomach upset or stomach pain (more common with pyrilamine and tripelennamine); unusual excitement, nervousness, restlessness, or irritability

Always Notify Doctor:

Less Common or Rare: Sore throat and fever; unusual bleeding or bruising; unusual tiredness or weakness

Overdose Effects - Notify Doctor:

Clumsiness or unsteadiness; convulsions (seizures); drowsiness (severe); dryness of mouth, nose, or throat (severe); feeling faint; flushing or redness of face; hallucinations (seeing, hearing, or feeling things that are not there); shortness of breath or troubled breathing; trouble in sleeping

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.

Further Reading

Explore Bipolar Disorder

About.com Special Features

We comply with the HONcode standard for trustworthy health information: verify here.

Bipolar Disorder

  1. Home
  2. Health
  3. Bipolar Disorder

©2009 About.com, a part of The New York Times Company.

All rights reserved.