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Benadryl®, Nytol®, PediaCare Children’s Allergy®, Unisom®
Often used for:
Symptoms associated with allergies or hay fever, colds, and allergic reactions
Diphenhydramine is an antihistamine. This type of medicine acts to block the activity of the histamine, a substance that causes allergy symptoms.
Diphenhydramine can be used to treat a variety of symptoms including:
This medicine is often used in combination with other medicines such as pain relievers, fever reducers, and decongestants.
This medicine is available in prescription and over-the-counter (OTC) forms.
May be given as a liquid injected into a muscle or vein
May be taken as a tablet, capsule, or dissolvable tablet or strip by mouth
May be taken as a liquid by mouth
Not all patients who take diphenhydramine will experience these side effects. Common side effects are in bold, but there may be others. Please report all suspected side effects to your doctor or pharmacist.
Be sure to discuss these and other recommendations with your doctor or pharmacist.