DRUG INTERACTIONS: Tell your doctor of all nonprescription and prescription medication you may use, especially of: theophylline, certain antidepressants (e.g., amitriptyline, nortriptyline). 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 nausea; vomiting; excessive drooling; stomach pain; sweating; headache; dizziness; confusion; weakness; fainting; difficulty breathing; seizures; fast, weak, or irregular heartbeat; blurred vision; diarrhea; and hearing problems.

NOTES: Do not share this medication with others. Keep out of the reach of children and pets.

MISSED DOSE: Not applicable. This product is used as needed as directed.

STORAGE: Store at room temperature at or below 86 degrees F (30 degrees C) away from light and moisture.