Discontinue use if hypersensitivity or serious adverse drug reaction, & in case of abnormality eg, fever, sore throat, infection, abnormal bleeding occurs. History of epileptic drug allergy (eg, carbamazepine, phenytoin). Do not use for long-term treatment. Regularly assess treatment outcome & gradually decrease dose. Avoid abrupt w/drawal. Liver or renal impairment, resp disorders, depression, drug abusers. Paradoxical effects in childn & elderly. Monitor blood profile in chronic use. Concomitant use w/ barbiturates. Do not drive or operate machinery or take hazardous activity during therapy. Pregnancy & lactation.