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Diphenhydramine

Latest prescription information about Diphenhydramine. Learn how to pronounce the drug’s name, its indications, dosage, how to take, when to take, when not to take, side effects, special precautions, its storage instructions and warnings if any when taken during pregnancy. Also listed are the International and Indian trade name(s) of the drug and its price list.
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Generic Name : Diphenhydramine
Pronunciation : dye fen hye' dra meen
Therapeutic Classification : antihistamines and decongestants
Trade Name(s): 
India- Asi-Dryl Syr, Benacof Soft-Gelatin Caps, Benadryl Soft-Gelatin Caps, Benadryl Syr, Cofihist Liqd, Cofryl Syr, Cofryl Tab, Kuffdryl Soft-Gelatin Caps, Kuffdryl Syr Syr, Novadryl Soft-Gelatin Caps, Odaril Syr, Pasodryl Syr, Ventodril Expectorant, Winskin Lotion.
International- Aler-Dryl, Allergia-C, Allermax, Altaryl, Banophen, Benadryl, Bromanate, AF Bydramine, Compoz, Nighttime Sleep Aid, Dicopanol, Diphedryl, Diphen, Diphenadryl, Diphenhist, Diphenylin, Dytan, Hydramine, Nervine, Nytol, Pardryl, Q-Dryl, Siladryl, Sleepinal, Sominex, Twilite, Unisom.
Why it is prescribed (Indications) : 
This medication is an antihistamine, prescribed for severe allergic conditions such as runny nose, sneezing, itchy, watery eyes. It is also used for itching of insect bites, sunburns, bee stings, poison ivy, poison oak and minor skin irritation.

When it is not to be taken (Contraindications): 


Contraindicated in newborns and patients with hypersensitivity.

Pregnancy Category :

A B C D X
Category B : Animal reproduction studies have failed to demonstrate a risk to the fetus and there are no adequate and well-controlled studies in pregnant women OR Animal studies have shown an adverse effect, but adequate and well-controlled studies in pregnant women have failed to demonstrate a risk to the fetus in any trimester.


When it is to be taken : 
PO- Adult- The recommended dose is 25 mg to 50 mg (1 to 2 capsules).
Child- The recommended dose is 12.5 mg to 25 mg (1 capsule).
Topical: Apply a thin layer over the affected area as directed by your physician.
How it should be taken : 
It comes as a tablet to take by mouth, with or without food.
It also comes as a cream, lotion and ointment to apply topically.
Special Instruction : 
* Caution should be exercised in patients with history of asthma, lung disease, increased eye pressure, ulcer, difficulty in urinating, enlarged prostate, heart disease, high blood pressure, seizures, overactive thyroid, any allergy, who are taking other medications, during pregnancy and breastfeeding.
* It may cause dizziness or drowsiness, do not drive a car or operate machinery while taking this medication.
* Avoid alcohol consumption.
Topical
* Avoid contact with eyes and mouth.
* Avoid using in patients with chickenpox, measles.
Side Effects : 
Topical - Skin rash, sunburn, increased sensitivity to sunlamps and sunlight.
Miscellaneous - Drowsiness, dizziness, nausea, vomiting, constipation, headache, muscle weakness and nervousness.
Other Precautions : 
* Avoid excess dosage.
Storage Conditions : 
Store it at room temperature.

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