Generic Name and Formulations:
Bupropion HCl 150mg, 300mg; ext-rel tabs.
Company:
GlaxoSmithKline
 
Select therapeutic use: Mood disorders
Indications for WELLBUTRIN XL:
Major depressive disorder (MDD). Seasonal affective disorder (SAD).

Adult:
Swallow whole. Avoid bedtime dosing. ≥18yrs: MDD: initially 150mg once daily in the AM for at least 4 days; if tolerated, increase to 300mg once daily in the AM at least 24hrs apart. May increase after several weeks to max 450mg once daily. SAD: start in autumn, taper and stop in early spring. 150mg once daily in AM; if tolerated, increase to 300mg once daily after 1 week. Max 300mg/day. Moderate-to-severe hepatic impairment: max 150mg every other day. Renal or mild hepatic impairment: consider reduced dose and/or dose frequency.

Children:
<18yrs: not established.

Contraindications:
Seizure disorders. Bulimia. Anorexia nervosa. During or within 14 days of discontinuing MAOIs. Concomitant linezolid or IV methylene blue. Abrupt withdrawal of alcohol, benzodiazepines, barbiturates, or antiepileptics. Other forms of bupropion (eg, Zyban).

Warnings/Precautions:
Not for treating bipolar depression or for smoking cessation. Increased risk of suicidal thinking and behavior in children, adolescents, and young adults; monitor for clinical worsening or unusual changes. Monitor for neuropsychiatric reactions. Risk of seizures; discontinue if seizure occurs: do not restart. Bipolar disorder. Mania/hypomania. Psychosis and other neuropsychiatric events; discontinue if occur. Angle-closure glaucoma. Unstable heart disease. CHF. Recent MI. Monitor BP before initiating and periodically during treatment. Hepatic or renal impairment (monitor closely). Reeva luate periodically. Maintain at lowest effective dose. Write ℞ for smallest practical amount. Elderly. Labor & delivery. Pregnancy (Cat.C). Nursing mothers.

Interactions:
See Contraindications. Do not start with concomitant linezolid or IV methylene blue; if treatment necessary, discontinue bupropion before starting. Monitor for 2 weeks or until 24hrs after last dose of linezolid or IV methylene blue, whichever comes first. Avoid alcohol. Levodopa, amantadine may increase CNS toxicity. Caution with drugs that lower seizure threshold (eg, theophylline, antidiabetics, anorectics, CNS stimulants, systemic steroids, tricyclic antidepressants, antipsychotics) or factors that lower seizure threshold (eg, opiate or cocaine addiction, excessive use of alcohol or sedatives). Caution with CYP2B6 inhibitors (eg, ticlopidine, clopidogrel) or drugs metabolized by CYP2D6 including antidepressants (eg, venlafaxine, nortriptyline, imipramine, desipramine, paroxetine, fluoxetine, sertraline), antipsychotics (eg, haloperidol, risperidone, thioridazine), β-blockers (eg, metoprolol), Class 1C antiarrhythmics (eg, propafenone, flecainide); consider dose reduction. Caution with CYP2B6 inducers (eg, ritonavir, lopinavir, efavirenz, carbamazepine, phenobarbital, phenytoin), tamoxifen; consider dose increase. May cause false (+) urine immunoassay test results for amphetamine.

See Also:
WELLBUTRIN SR

WELLBUTRIN

Pharmacological Class:
Aminoketone.

Adverse Reactions:
Dry mouth, nausea, insomnia, dizziness, pharyngitis, abdominal pain, agitation, anxiety, tremor, palpitation, sweating, tinnitus, myalgia, anorexia, urinary frequency, rash (rarely may be serious, eg, erythema multiforme, Stevens-Johnson syndrome), headache, blurred vision, tachycardia; hypertension.

Generic Availability:
YES

How Supplied:
XL tabs 150mg—30, 90; 300mg—30; SR tabs—60; Immediate-rel tabs—100