Diphenhydramine, Benadryl Drug Side Effects and Dosing
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Diphenhydramine, Benadryl Drug Side Effects and Dosing

11.25.2017 | Victoria Hoggarth
Diphenhydramine, Benadryl Drug Side Effects and Dosing

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.

Diphenhydramine also may cause.

Jay W. Marks, MD, is a board-certified internist and gastroenterologist. He graduated from Yale University School of Medicine and trained in internal medicine and gastroenterology at UCLA/Cedars-Sinai Medical Center in Los Angeles.

Diphenhydramine commonly can cause:

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Benadryl, Sominex, Unisom, Nytol, and several others.

Use the pill identifier tool on RxList.

What is diphenhydramine, and how does it work (mechanism of action)?

Cause of Eustachian tube dysfunction or blockage include:

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What brand names are available for diphenhydramine?

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Canker sores are a common complaint, and are small ulcers on the inside of the mouth. Canker sores aren't contagious (as opposed to cold sores), and typically last for 10-14 days usually healing without scarring. A variety of things cause canker sores, for example:.

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Canker sores can be cure with home remedies, and prescription and OTC topical and oral medication.

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Do I need a prescription for diphenhydramine?

In addition, they prevent histamine from binding and stimulating the cells. Diphenhydramine also blocks the action of acetylcholine (anticholinergic effect) and is used as a sedative because it causes drowsiness. Diphenhydramine is an antihistamine used for treating allergic reactions. Antihistamines compete with histamine for cell receptors and bind to the receptors without stimulating the cells. The FDA originally approved diphenhydramine in 1946. Histamine is released by the body during several types of allergic reactions and--to a lesser extent--during some viral infections, such as the common cold. When histamine binds to receptors on cells, it stimulates changes within the cells that lead to the release of chemicals that cause sneezing, itching, and increased mucus production.

He completed a Pharmacy Practice Residency at the University of Arizona/University Medical Center in 1996. Dr. Ogbru received his Doctorate in Pharmacy from the University of the Pacific School of Pharmacy in 1995. He was a Professor of Pharmacy Practice and a Regional Clerkship Coordinator for the University of the Pacific School of Pharmacy from 1996-99.

Diphenhydramine should be used with caution (if at all) in persons with narrow-angle glaucoma, prostatic hypertrophy ( enlarged prostate gland), hyperthyroidism, cardiovascular disease, high blood pressure ( hypertension ), and asthma.

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Is diphenhydramine available as a generic drug? GENERIC AVAILABLE: Yes.

What are the side effects of diphenhydramine?

The Eustachian tube is a membrane lined tube that connects the middle ear space to the back of the nose. Symptoms of Eustachian tube dysfunction or blockage include:.

In severe cases surgery may be necessary. Treatment includes home remedies to relieve pain and several maneuvers (swallowing, chewing gum, yawning etc.), which can be done to improve Eustachian tube function.