SIDE EFFECTS: Drowsiness, dizziness, headache, blurred vision, and dryness of the nose and mouth may occur. If these effects persist or worsen, notify your doctor. Tell your doctor immediately if you have any of these unlikely but serious side effects: difficulty urinating, mental/mood changes. If you notice other effects not listed above, contact your doctor or pharmacist.

PRECAUTIONS: Tell your doctor your medical history, including: high blood pressure, heart or thyroid disease, diabetes, glaucoma (narrow angle), prostate conditions, allergies (especially to tartrazine dye or aspirin). This medication may make you dizzy or drowsy; use caution engaging in activities requiring alertness such as driving or using machinery. Limit alcoholic beverages. Caution is advised when using this medication in the elderly, since they may be more sensitive to medication side effects. This medication should not be used in newborns. This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor. This medication may pass into breast milk. Breast-feeding while using this medication is not recommended. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: Tell your doctor of all prescription and nonprescription medication you may use, especially of: MAO inhibitors used within the last 2 weeks (e.g., furazolidone, linezolid, moclobemide, phenelzine, procarbazine, selegiline). Also report drugs that cause drowsiness such as: sleeping pills, sedatives, tranquilizers, anti-anxiety drugs, narcotic pain relievers (e.g., codeine), psychiatric medicines, anti-seizure drugs, muscle relaxants, other antihistamines that cause drowsiness (e.g., diphenhydramine). Check the labels on all your medicines (e.g., cough-and- cold products) because they may contain drowsiness-causing ingredients. Ask your pharmacist about the safe use of those products. Do not start or stop any medicine without doctor or pharmacist approval.

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. Need help identifying pills and medications? Use the pill identifier tool on RxList.