PRECAUTIONS: Tell your doctor your medical history, especially of: kidney or liver disease, breathing problems, alcohol and/or drug abuse, colitis or other intestinal/stomach problems, severe diarrhea, head injury, heart problems, drug allergies. Use caution when engaging in activities requiring alertness such as driving. Limit alcohol intake because it may add to the dizziness/drowsiness effects of this medication. Caution is advised when using this drug in the elderly because they may be more sensitive to the effects of the drug. This medication should be used during pregnancy only when clearly needed. Discuss the risks and benefits with your doctor. This medication is excreted into breast milk. Though to date, no problems have been noted in nursing infants, consult your doctor before breast-feeding.

DRUG INTERACTIONS: Tell your doctor of all the medicines you may use both prescription and nonprescription, especially of: carbamazepine, cimetidine, ritonavir, other narcotic pain medications, sedatives, tranquilizers, drugs used for anxiety or depression. Do not start or stop any medicine without doctor or pharmacist approval.

OVERDOSE: If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US national poison hotline at 1-800-222-1222. Canadian residents should call their local poison control center directly. Symptoms of overdose may include cold and clammy skin, low body temperature, slowed breathing, slowed heartbeat, drowsiness, dizziness, lightheadedness, deep sleep, and loss of consciousness.

NOTES: Do not share this medication with others.

MISSED DOSE: If you miss a dose, take as soon as remembered; do not take if it is almost time for the next dose, instead, skip the missed dose and resume your usual dosing schedule. Do not "double-up" the dose to catch up.

STORAGE: Store at room temperature away from sunlight and moisture.