Unisom Side Effects, Overdose and Pregnancy Information

Unisom is an antihistamine which blocks the release of histamine, a chemical in the body that narrows air passages in the lungs and causes inflammation during allergy reaction. Main ingredient in Unisom is Diphenhydramine. Unisom relieves red, itchy eyes and the redness and swelling from hives and other rashes that are caused by allergic reactions. Unisom also relieves the sneezing, coughing, runny or stuffy nose, and other symptoms of seasonal allergies and the common cold with drying and sedative effects. Unisom is also used in patients of Parkinson's disease, to treat allergic reactions to blood transfusions, insomnia and motion sickness.

Unisom Side Effects

Unisom side effects may include dizziness, excessive calm, dry mouth increased chest congestion, drowsiness, and upset stomach. Less common Unisom side effects may include confusion, blurred vision, constipation, diarrhea, excitation, fatigue, difficult urination, and headache. Rare Unisom side effects include hives, hypersensitivity to light, irregular heartbeat, loss of appetite, low blood pressure, nausea, rash, ringing in the ears, stuffy nose, tightness of chest, vertigo, and vomiting. Another Unisom side effect is that it can make adults less alert and may cause excitability, in young children. Seniors are more likely to experience Unisom side effects of lightheadedness, extreme calm, and low blood pressure.

Unisom Side Effects Reporting

If you experience any Unisom side effects not mentioned above you should report it to your primary health care provider or FDA 1-800-FDA-1088 in the United States, Health Canada 1-866-225-0709 in Canada, MHRA 020 3080 6000 in UK, or TGA 1800 020 653 in Australia.

Unisom Overdose

Unisom overdose symptoms include aggression, confusion, severe drowsiness, dilated pupils, seizures, flushing and upset stomach. In case of Unisom overdose, seek medical attention right away. If you miss a dose of Unisom, take it as soon as you can. However, if it is just about time for your next dose, skip the one you forgot and go on with your regular schedule. Never take a double dose of Unisom.

UNISOM AND PREGNANCY

Consult your doctor before using Unisom during pregnancy especially during the last trimester. Unisom is not recommended for nursing mothers. Switch to bottle-feed while taking Unisom.

UNISOM WARNING AND CAUTION

Avoid using Unisom if you are sensitive to or have ever had an allergic reaction to antihistamines. Avoid using Unisom or other antihistamines if you have narrow-angle glaucoma, peptic ulcer or other stomach problems, enlarged prostate, or difficulty urinating. Use Unisom with care if you have a history of asthma, emphysema, thyroid disease, high blood pressure, or heart disease. Unisom can cause drowsiness. Avoid driving or operating dangerous machinery until you know how you respond to Unisom. Unisom should not be used in newborn or premature infants.

UNISOM INTERACTION

Avoid drinking alcohol while taking Unisom.
Check with your doctor before combining Unisom with the following:
Antidepressant (MAO) inhibitors
Sedative
Tranquilizers and sleeping pills
Herbs like catnip, gotu kola, kava, ginseng, St. John's wort and others.

UNISOM DOSES

Unisom should not be used in newborn or premature infants.
For Allergy
Adults and Children 12 and older: 25-50 mg every 4-6 hours
For Insomnia
Adults and Children 12 and older: 25-50 mg at bedtime
For Cough
Adults and Children 12 and older: 25 mg every 4 hours
Children 6-12 years: 12.5 mg every 4 hours
Children 2-6 years: 6.25 mg every 4 hours
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