DOSAGE AND ADMINISTRATION
When deciding among the alternative treatments available for depression, the prescriber should consider the risk of hepatic failure associated with SERZONE treatment (see WARNINGS).
The recommended starting dose for SERZONE (nefazodone hydrochloride) is 200 mg/day, administered in two divided doses (BID). In the controlled clinical trials establishing the antidepressant efficacy of SERZONE (nefazodone) , the effective dose range was generally 300 to 600 mg/day. Consequently, most patients, depending on tolerability and the need for further clinical effect, should have their dose increased. Dose increases should occur in increments of 100 mg/day to 200 mg/day, again on a BID schedule, at intervals of no less than 1 week. As with all antidepressants, several weeks on treatment may be required to obtain a full antidepressant response.
Dosage for Elderly or Debilitated Patients
The recommended initial dose for elderly or debilitated patients is 100 mg/day, administered in two divided doses (BID). These patients often have reduced nefazodone clearance and/or increased sensitivity to the side effects of CNS-active drugs. It may also be appropriate to modify the rate of subsequent dose titration. As steady-state plasma levels do not change with age, the final target dose based on a careful assessment of the patients clinical response may be similar in healthy younger and older patients.
There is no body of evidence available from controlled trials to indicate how long the depressed patient should be treated with SERZONE (nefazodone) . It is generally agreed, however, that pharmacological treatment for acute episodes of depression should continue for up to 6 months or longer. Whether the dose of antidepressant needed to induce remission is identical to the dose needed to maintain euthymia is unknown. Systematic evaluation of the efficacy of SERZONE (nefazodone) has shown that efficacy is maintained for periods of up to 36 weeks following 16 weeks of open-label acute treatment (treated for 52 weeks total) at dosages that averaged 438 mg/day. For most patients, their maintenance dose was that associated with response during acute treatment. (See CLINICAL PHARMACOLOGY.) The safety of SERZONE (nefazodone) in long-term use is supported by data from both double-blind and open-label trials involving more than 250 patients treated for at least one year.
Switching Patients to or from a Monoamine Oxidase Inhibitor
At least 14 days should elapse between discontinuation of an MAOI and initiation of therapy with SERZONE (nefazodone) . In addition, at least 7 days should be allowed after stopping SERZONE (nefazodone) before starting an MAOI.
SERZONE® (nefazodone hydrochloride) tablets are hexagonal tablets imprinted with BMS and the strength (ie, 100 mg) on one side and the identification code number on the other. The 100 mg and 150 mg tablets are bisect scored on both tablet faces. The 50 mg, 200 mg, and 250 mg tablets are unscored.
||50 mg light pink tablet, bottle of 60 |
||100 mg white tablet, bottle of 60 |
||150 mg peach tablet, bottle of 60 |
||200 mg light yellow tablet, bottle of 60 |
||250 mg white tablet, bottle of 60 |
Store at room temperature, below 40Âº C (104Âº F) and dispense in a tight container.
SERZONE (nefazodone) ® is a registered trademark of Bristol-Myers Squibb Company. Other brand names listed are trademarks of their respective owners and are not trademarks of Bristol-Myers Squibb Company. Bristol-Myers Squibb Company Princeton, NJ 08543 USA, This Patient Information Leaflet has been approved by the U.S.Food and Drug Administration.
Revised January 2005