Combination product
Pronunciation: dex-troe-meth-OR-fan and byoo-PROE-pee-on (aw-VEL-i-tee)
Combination of Dextromethorphan and Bupropion.
Each component keeps its own pharmacology page; the combination itself adds no new mechanism.

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| FDA dosing | Population | Start | Target | Max |
|---|---|---|---|---|
| Major depressive disorder (MDD) | Adults | 45 mg/105 mg QD (morning) | 45 mg/105 mg BID (≥8 h apart) from day 4 | 45 mg/105 mg BID (2 doses/day) |
| Agitation associated with dementia due to Alzheimer's disease | Adults | 30 mg/105 mg QD (morning) | 30 mg/105 mg BID on day 8; then 45 mg/105 mg BID on day 15 (≥8 h apart) | 45 mg/105 mg BID (2 doses/day) |
Titration MDD: increase to BID on day 4. Alzheimer's agitation: increase on day 8, then day 15 based on tolerability
Renal Moderate impairment (eGFR 30-59): max 45 mg/105 mg QD; not recommended in severe (eGFR 15-29)
Hepatic No adjustment for mild/moderate (Child-Pugh A/B); not recommended in severe (Child-Pugh C)
Not indicated as an as-needed (prn) treatment for agitation associated with Alzheimer's dementia; separate BID doses by at least 8 hours
Available strengths
Pregnancy May cause fetal harm based on animal studies; not recommended in pregnancy; discontinue if pregnant
Lactation Bupropion and metabolites present in human milk; breastfeeding not recommended during treatment and for 5 days after final dose (neurotoxicity concern)
| Strength | #/mo | generic $/mo | brand $/mo | CostPlus | |
|---|---|---|---|---|---|
| 30/105 mg | ER tab | 30 qd | — | not offered | |
| 45/105 mg | ER tab | 30 qd | — | $596.93 | not offered |
Part D rank #418.