Naltrexone Hydrochloride And Bupropion Hydrochloride Interactions

Brand names: Contrave Extended-Release

FDA Black Box Warning

WARNING: SUICIDAL THOUGHTS AND BEHAVIORS WARNING: SUICIDAL THOUGHTS AND BEHAVIORS See full prescribing information for complete boxed warning Increased risk of suicidal thinking and behavior in children, adolescents, and young adults taking antidepressants for major depressive disorder and other psychiatric disorders. ( 5.1 ) Monitor for worsening and emergence of suicidal thoughts and behaviors. ( 5.1 ) CONTRAVE is not approved for use in pediatric patients. ( 5.1 ) SUICIDALITY AND ANTIDEPRESSANT DRUGS CONTRAVE ® is not approved for use in the treatment of major depressive disorder or other psychiatric disorders. CONTRAVE contains bupropion, the same active ingredient as some antidepressant medications (including, but not limited to, WELLBUTRIN, WELLBUTRIN SR, WELLBUTRIN XL, and APLENZIN). Antidepressants increased the risk of suicidal thoughts and behavior in children, adolescents, and young adults in short-term trials. These trials did not show an increase in the risk of suicidal thoughts and behavior with antidepressant use in subjects over age 24; there was a reduction in risk with antidepressant use in subjects aged 65 and older. In patients of all ages who are started on CONTRAVE, monitor closely for worsening, and for the emergence of suicidal thoughts and behaviors. Advise families and caregivers of the need for close observation and communication with the prescriber. CONTRAVE is not approved for use in pediatric patients [see Warnings and Precautions (5.1) , Use in Specific Populations (8.4) ] .

3 interactions on record

Naltrexone Hydrochloride And Bupropion Hydrochloride + LopinavirMajor

( 2.5 , 7.4 ) CYP2B6 Inducers (e.g., ritonavir, lopinavir, efavirenz, carbamazepine, phenobarbital, and phenytoin) may reduce efficacy by reducing bupropion exposure, avoid concomitant use. Inducers of CYP2B6: Ritonavir, Lopinavir, and Efavirenz: Concomitant treatment with these drugs can decrease bupropion and hydroxybupropion exposure and may reduce efficacy. Avoiding concomitant use with ritonavir, lopinavir, or efavirenz is recommended [see Clinical Pharmacology (12.3) ] .

Source: FDA drug label - naltrexone hydrochloride and bupropion hydrochloride

Naltrexone Hydrochloride And Bupropion Hydrochloride + RitonavirMajor

( 2.5 , 7.4 ) CYP2B6 Inducers (e.g., ritonavir, lopinavir, efavirenz, carbamazepine, phenobarbital, and phenytoin) may reduce efficacy by reducing bupropion exposure, avoid concomitant use. Inducers of CYP2B6: Ritonavir, Lopinavir, and Efavirenz: Concomitant treatment with these drugs can decrease bupropion and hydroxybupropion exposure and may reduce efficacy. Avoiding concomitant use with ritonavir, lopinavir, or efavirenz is recommended [see Clinical Pharmacology (12.3) ] .

Source: FDA drug label - naltrexone hydrochloride and bupropion hydrochloride

Naltrexone Hydrochloride And Bupropion Hydrochloride + MetoprololUnknown

( 7.1 ) Drugs Metabolized by CYP2D6: Bupropion inhibits CYP2D6 and can increase concentrations of antidepressants, (e.g., selective serotonin reuptake inhibitors and many tricyclics), antipsychotics (e.g., haloperidol, risperidone and thioridazine), beta-blockers (e.g., metoprolol) and Type 1C antiarrhythmics (e.g., propafenone and flecainide). 7.3 Potential for CONTRAVE to Affect Other Drugs Metabolized by CYP2D6 In a clinical study, CONTRAVE (32 mg naltrexone/360 mg bupropion) daily was coadministered with a 50 mg dose of metoprolol (a CYP2D6 substrate). CONTRAVE increased metoprolol AUC and C max by approximately 4- and 2-fold, respectively, relative to metoprolol alone.

Source: FDA drug label - naltrexone hydrochloride and bupropion hydrochloride