Medications and Drugs
GENERIC NAME: DIPHENHYDRAMINE - ORAL (dye-fen-HI-druh-meen)
BRAND NAME(S): Benadryl, Genahist, Sominex, Uni-Hist
Medication Uses | How To Use | Side Effects | Precautions | Drug Interactions | Overdose | Notes | Missed Dose | Storage | Medical Alert
USES: This medication provides relief of symptoms of allergic reactions such as rash, hives, watery eyes, runny nose, itchy eyes and sneezing. Also used to treat motion sickness, anxiety, tension, sleeplessness or involuntary movements due to the side effects of certain psychiatric drugs.
HOW TO USE: May be taken with food or milk if stomach upset occurs. Follow doctor's instructions. Do not take more than recommended.
SIDE EFFECTS: May cause drowsiness, dizziness, headache, loss of appetite, stomach upset, vision changes, irritability, dry mouth and nose. These effects should subside as your body adjusts to the medication. If these effects persist or worsen, inform your doctor. Notify your doctor if you develop: breathing difficulties, pounding or irregular heartbeat, ringing in the ears, difficulty urinating. If you notice other effects not listed above, contact your doctor or pharmacist.
PRECAUTIONS: Do not take for several days before allergy testing as test results can be affected. Tell your doctor your medical history, especially of: asthma, glaucoma, ulcers, difficulty urinating (due to an enlarged prostate gland), heart disease, high blood pressure, seizures, an overactive thyroid gland. Change from a seated or lying position slowly to avoid dizziness. Use caution in performing activities requiring alertness. Limit alcohol intake or other sedating medications to avoid excessive drowsiness. Do not give regular tablets or oral liquid to a child younger than six years of age unless directed to do so by a doctor. This drug should be used only if clearly needed during pregnancy. Discuss the risks and benefits with your doctor. Because this medication appears in breast milk, consult your doctor before breast-feeding.
Report Problems to the Food and Drug Administration
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.
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