"What are allergies?
Allergies occur when the body's immune system responds to a substance it considers an "invader." Substances that provoke the immune system into an allergic response are known as allergens. There is no such thing as a"...
Do not use
- with another product containing any of these active ingredients
- if you are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric, or emotional conditions, or Parkinson's disease), or for 2 weeks after stopping the MAOI drug. If you do not know if your prescription drug contains an MAOI, ask a doctor or pharmacist before taking this product.
- with any other product containing diphenhydramine, even one used on skin.
Ask a doctor before use if you have
- heart disease
- thyroid disease
- trouble urinating due to an enlarged prostate gland
- high blood pressure
- a breathing problem such as emphysema or chronic bronchitis
- cough accompanied by excessive phlegm (mucus)
- persistent or chronic cough such as occurs with smoking, asthma or emphysema
Ask a doctor or pharmacist before use if you are taking sedatives or tranquilizers
When using this product
do not use more than directed
- marked drowsiness may occur
- avoid alcoholic drinks
- alcohol, sedatives, and tranquilizers may increase drowsiness
- be careful when driving a motor vehicle or operating machinery
- excitability may occur, especially in children
Stop use and ask a doctor if
- redness or swelling is present
- sore throat is severe
- you get nervous, dizzy, or sleepless
- new symptoms occur
- fever gets worse or lasts more than 3 days
- pain, cough or nasal congestion gets worse or lasts more than 5 days (children) or 7 days (adults)
- sore throat lasts for more than 2 days, is accompanied or followed by fever, headache, rash, swelling, nausea, or vomiting
- cough comes back or occurs with rash or headache that lasts. These could
be signs of a serious condition.
If pregnant or breast-feeding, ask a health professional before use.
Keep out of reach of children.
call 1-800-524-2624 (English/Spanish), weekdays, 9 AM - 5 PM EST.
Last reviewed on RxList: 11/13/2007
This monograph has been modified to include the generic and brand name in many instances.
Additional Benadryl Information
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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Allergies & Asthma
Improve treatments & prevent attacks.