DRUG INTERACTIONS: Tell your doctor of all prescription and nonprescription medication you use, especially: bisphosphonate drugs (e.g., alendronate, etidronate), macrolide antibiotics (e.g., erythromycin), azole antifungals (e.g., ketoconazole, itraconazole), anti-Parkinson's drugs (e.g., benztropine, trihexyphenidyl), other anticholinergic drugs (e.g., scopolamine or tolterodine). Also report other drugs which may cause drowsiness, such as: anti-anxiety or anti-seizure drugs, sedatives or tranquilizers, narcotic pain relievers (e.g., codeine), psychiatric medicines (e.g., chlorpromazine, amitriptyline), muscle relaxants, sedating antihistamines like diphenhydramine (this also includes anti- histamines found in nonprescription cough/cold products). 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 restlessness, tremor, irritability, flushing, fever, nausea, vomiting, fast heartbeat, and slow breathing.

NOTES: Do not allow anyone else to take this medication.

MISSED DOSE: Take the missed dose as soon as possible but not if it is almost time for the next dose. If it is time for the next dose, skip the missed dose and resume your regular schedule. Do not "double-up" the dose.

STORAGE: Store at room temperature and keep away from moisture and sunlight. Do not store in the bathroom. Do not freeze the liquid forms.