SIDE EFFECTS: Headache, dizziness, drowsiness, nausea, vomiting, diarrhea, gas, or constipation may occur. If any of these effects persist or worsen, notify your doctor. Promptly tell your doctor if any of these side effects occur: decreased sexual ability, decreased interest in sex, dry eyes/mouth/skin, trouble sleeping/nightmares, ringing in the ears. Tell your doctor immediately if any of these serious side effects occur: rash, weight gain, swelling, unusual weakness or fatigue, trouble breathing, mental/mood changes. Tell your doctor immediately if any of these unlikely but serious side effects occur: chest pain, irregular heartbeat, stomach pain, blurred vision. Tell your doctor immediately if any of these highly unlikely but very serious side effects occur: yellowing eyes or skin, dark urine, easy bruising or bleeding. If you notice other effects not listed above, contact your doctor or pharmacist.

PRECAUTIONS: This medication is not recommended for use if you have the following medical conditions: lung problems (e.g., asthma, bronchospasm, pulmonary hypertension), heart problems (e.g., bradycardia, heart failure). Tell your doctor your medical history, especially of: liver problems, chest pain (angina), eye problems, thyroid disorders, diabetes, any planned surgeries, any allergies. This drug may make you dizzy or drowsy; use caution engaging in activities requiring alertness such as driving or using machinery. Limit alcoholic beverages. This medication is not recommended for use during pregnancy. Discuss the risks and benefits with your doctor. This medication passes into breast milk and may have undesirable effects on a nursing infant. Therefore, breast-feeding while using this medication is not recommended. 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. Need help identifying pills and medications? Use the pill identifier tool on RxList.