tocainide-oral, Tonocard (cont.)
USES: This medication is used to treat irregular heart rhythms (arrhythmias) and maintain a normal heart rate.
HOW TO USE: This is best taken on an empty stomach with a full glass of water, but may be taken with food or milk if stomach upset occurs. This medication works best when there is a constant level of the drug in your body. To do this, take each dose exactly as prescribed at evenly spaced intervals throughout the day and night. Try to take each dose at the same time each day. Do not stop taking this medication or change the dose without first consulting your doctor. Some conditions may become worse when the drug is suddenly stopped.
SIDE EFFECTS: Nausea, loss of appetite, vomiting, dizziness, headache, sweating, blurred vision, numbness or tingling of the fingers or toes, confusion or nervousness may occur as your body adjusts to the medication. If these effects persist or worsen, inform your doctor. Notify your doctor if you develop: chest pain, rapid heartbeat, easy bruising or bleeding, rash, shortness of breath, breathing difficulties, coughing, persistent sore throat, fever. If you notice other effects not listed above, contact your doctor or pharmacist.
PRECAUTIONS: Be sure your doctor or dentist knows your complete medical history, especially of: scheduled medical or dental procedures. Because this medication may cause blurred vision or dizziness in some people, make sure you know how you react to this drug before driving or operating machinery. This medication should be used only when clearly needed during pregnancy. This medication passes into breast milk and may have undesirable effects on a nursing infant. Consult your doctor before breast-feeding.
DRUG INTERACTIONS: Inform your doctor about all the medicines you use (both prescription and nonprescription), especially of: beta- blockers (e.g., propranolol), cimetidine, rifampin, other drugs used for heart problems. Do not start or stop any medicine without doctor or pharmacist approval.
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