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xanthine derivatives-oral (cont.)

HOW TO USE:

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SIDE EFFECTS: Dizziness, headache, lightheadedness, heartburn, stomach pain, loss of appetite, restlessness, nervousness, sleeplessness or increased urination may occur as your body adjusts to the medication. If these symptoms persist or worsen, inform your doctor. Inform your doctor if you experience: chest pain, rapid or irregular heartbeat, confusion, severe stomach pain, breathing difficulties. If you notice other effects not listed above, contact your doctor or pharmacist.

PRECAUTIONS: Avoid drinking large amounts of beverages containing caffeine (coffee, tea, colas) or eating large amounts of chocolate. Caffeine can increase side effects of this medication. Smoking affects this medication. Be sure to tell your doctor if you smoke or use nicotine. Inform your doctor if you stop smoking. Your dose may need to be adjusted. This medication should be used during pregnancy only if clearly needed. Because small amounts of this drug appear in breast milk, consult with your doctor before breast-feeding. Tell your doctor your complete medical history especially if you are taking medicine (beta-blockers) for high blood pressure.

DRUG INTERACTIONS: Inform your doctor about all the medicines you use (both prescription and nonprescription), especially if you take: cimetidine, erythromycin, troleandomycin, mexiletine, tacrine, barbiturates, disulfiram, rifampin, thiabendazole, birth control pills, rifabutin, ticlopidine, quinolone antibiotics, beta-blockers, phenytoin, fluvoxamine (an SSRI antidepressant), St John's wort. 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 unusually fast or slow heartbeat, loss of appetite, nausea/vomiting, sleeplessness, irritability, restlessness, headache, increased thirst, fever, ringing in ears, delirium, muscle twitching or weakness, seizures, sweating, or fast breathing.



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