Zyzyx Dosage/Direction for Use

The dose range is 150 to 600 mg per day given in either two or three divided doses.
Epilepsy: Pregabalin treatment can be stated with a dose of 150 mg per day given as two or three divided doses. Based on individual patient response and tolerability, the dose may be increased to 300 mg per day after 1 week. The maximum dose of 600 mg per day be achieved after an additional week.
Generalized Anxiety Disorder: The dose range is 150 to 600 mg per day as two or three divided doses. The need for treatment should be reassessed regularly.
Pregabalin treatment can be started with a dose of 150 mg per day. Based on individual patient response and tolerability, the dose may be increased to 300 mg per day after 1 week. Following an additional week the dose may be increased to 450 mg per day. The maximum dose of 600 mg per day may be achieved after an additional week.
Discontinuation of Pregabalin: In accordance with current clinical practice, if Pregabalin has to be discontinued, it is recommended this should be done gradually over a minimum of 1 week independent of the indication.
Patients with renal impairment: Pregabalin is eliminated from the systemic circulation primarily by renal excretion as unchanged drug. As pregabalin clearance is directly proportional to creatinine clearance, dose reduction in patients with compromised renal function must be individualized according to creatinine clearance (ClCr), as indicated in Table 1 determined using the following formula: (see equation).

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Pregabalin is removed effectively from plasma by hemodialysis (50% of drug in 4 hours). For patients receiving hemodialysis, the Pregabalin daily dose should be adjusted based on renal function. In additional to the daily dose, a supplementary dose should be given immediately following every 4-hour hemodialysis treatment.
Pregabalin dose adjustment based on renal function: (see Table 1).

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Patients with hepatic impairment: No dose adjustment is required for patients with hepatic impairment.
Pediatric population: The safety and efficacy of Pregabalin in children below the age of 1 year and in adolescents (12-17 years of age) have not been established. No data are available.
Elderly (over 65 years of age) population: Elderly patients may require a dose reduction of Pregabalin due to decreased renal function.
Method of Administration: Pregabalin may be taken with or without food.
Pregabalin is for oral use only.