Perinatal EvidenceCompass
Prepopulated workbenchMED-259

Special psychiatric indications — pseudobulbar affect

Dextromethorphan hydrobromide/quinidine sulfate

Pseudobulbar affect

Brand / product examples: Nuedexta

Not a categorical safety rating

This record organizes questions; it does not close them.

The clinical fields and position statements are prepopulated from the public-source corpus. They have not completed individual dual extraction, formal appraisal, exact-label reconciliation, or multidisciplinary sign-off. Do not use this page to justify abrupt discontinuation or reflexive switching.

Inventory identity

What this record represents

Canonical generic name
Dextromethorphan hydrobromide/quinidine sulfate
Entity type
fixed-dose combination
Active component(s)
Dextromethorphan hydrobromide · quinidine sulfate
Formulation / route / interval
Oral capsule
Attachment entry
Dextromethorphan/quinidine
Separate monograph status
Yes — fixed combination plus component cross-references
Identity and cross-reference
Cross-reference standalone dextromethorphan; not interchangeable with Auvelity
Inventory verification confidence
Moderate — molecule-level source; exact product/jurisdiction pending

Decision taxonomy

Five positions kept separate

These are workbench statements for reviewer execution. They are not independently commissioned, patient-specific recommendations.

  1. 01

    Stable continuation

    Workbench statement

    Do not withhold or discontinue solely because of pregnancy or lactation. For this record, assess indication, prior response, relapse severity, dose/formulation, alternatives, exposure timing, and mapped evidence; individual commissioned adjudication remains pending.

  2. 02

    New initiation in pregnancy

    Workbench statement

    For a new start, prefer an effective option with the strongest diagnosis-specific efficacy and reproductive evidence when clinically suitable. This record has not received an individual, independently verified initiation ranking.

  3. 03

    Switch before conception

    Workbench statement

    Before conception, consider a switch only when expected benefit exceeds relapse, withdrawal, failed-switch, and dual-exposure risks. Build and monitor the plan before pregnancy when feasible; no universal switch direction is assigned here.

  4. 04

    Unplanned exposure

    Workbench statement

    After unplanned exposure, confirm product, route, dose, timing, indication, co-exposures, and symptoms; do not advise abrupt cessation. Use the mapped evidence and current label to decide whether any targeted fetal assessment is indicated.

  5. 05

    Delivery, postpartum & lactation

    Workbench statement

    Create separate delivery, postpartum-dose, neonatal-observation, and lactation plans. Do not infer breastfeeding suitability from pregnancy evidence or routinely taper before delivery without drug-specific support.

Linked evidence

1 mapped claim summaries

Mapping can include class-wide, framework, formulation, regulatory, or evidence-gap claims. A linked claim is not necessarily a drug-specific causal estimate.

C-043Provisional public source

Nuedexta has no adequate human pregnancy data; quinidine adds QT prolongation and CYP2D6 interactions, and the combination can contribute to serotonin toxicity.

Public-source certainty descriptor
Very low reproductive evidence; high interaction certainty
Formal appraisal
Not started — full text and independent appraisal pending
Exposure window
Pregnancy and lactation
Comparator
Dextromethorphan/quinidine versus alternative management
Effect or numbers carried forward

No human pregnancy risk estimate

Limitations

Animal findings do not quantify human risk; quinidine is in milk but combination infant data are inadequate

Sources, citation controls, and verification state

Linked sources

PMID
Not populated in v0.95
DOI
Pending DOI verification
Exact locator
Pending exact table/figure/page/supplement locator
Access date
2026-07-29
Integrity check
Same-day source surveillance recorded; source-by-source correction/retraction verification remains pending
Internal verification
Source-linked; independent external verification pending