PRECAUTIONS: Before taking haloperidol, tell your doctor if you have the following: difficulty urinating, Parkinson's disease, glaucoma, lung disease, heart or blood vessel disease, seizure disorder, kidney or liver problems, thyroid problems, prostate problems, drug allergies. This drug decreases your ability to regulate body temperature, resulting in severe chilling. Do not swim in extremely cold water. This medication can reduce sweating making you susceptible to overheating. Avoid strenuous exercise in hot weather and saunas. Use of alcohol and other sedative type medications can lead to extreme drowsiness. This medication can increase sensitivity to sunlight. Avoid prolonged exposure. Wear a sunscreen and protective clothing. This drug should be used during pregnancy only if clearly needed. Discuss the risks and benefits with your doctor. Haloperidol is excreted into breast milk. Do not breast-feed while using this drug. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: Tell your doctor of all prescription and nonprescription drugs you may use, especially of: lithium, carbamazepine, fluoxetine, methyldopa, phenytoin, barbiturates, anticholinergic drugs (e.g., propantheline), drugs used for Parkinson's disease or other conditions affecting muscle control, narcotic pain medications (e.g., codeine). Report other drugs which affect the heart rhythm (QTc prolongation), such as: dofetilide, pimozide, quinidine, sotalol, procainamide, sparfloxacin, "water pills" (diuretics such as furosemide or hydrochlorothiazide). Ask your doctor or pharmacist for more details. 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 agitation, very dry mouth, unusual drowsiness or deep sleep, slow or shallow breathing, rapid or irregular pulse, and muscle weakness, rigidity, or tremor.

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