DRUG INTERACTIONS: Tell your doctor of all prescription and nonprescription medication you may use, especially: calcium supplements, vitamin products, magnesium-containing laxatives, antacids, "blood thinners" (e.g., warfarin), certain antibiotics (e.g., tetracyclines or quinolones such as ciprofloxacin). 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: severe vomiting, confusion, muscle pain, increased thirst, increased urination.

NOTES: Do not share this medication with others. Laboratory and/or medical tests may be performed to monitor your progress. It is important to maintain a well-balanced diet and exercise regularly while taking this medication. Consult your doctor.

MISSED DOSE: If you miss a dose, use it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

STORAGE: Store at room temperature between 59 and 86 degrees F (15 and 30 degrees C) away from light and moisture.

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.