From the databaseWhat the row says.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
Scope
Supplement × Prescription
Last verified
June 4, 2026
SynergyModerate evidence
What is happening. Hypokalemia can increase QT-related arrhythmia risk during prochlorperazine therapy.
Mechanism. Normal potassium reduces delayed repolarization and torsades risk.
Recommendation. Correct low potassium under clinician guidance; avoid unsupervised potassium in kidney disease or with potassium-retaining drugs.
Stack Score
How it moves the number.
Effect on the composite score
If both Potassium and Prochlorperazine are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).
The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.
SourcesSources, by evidence tier.
Every claim on this page is cited. PMIDs link straight to PubMed.
Reference material
1- 1U.S. National Library of Medicine. Prochlorperazine Maleate Tablets US Prescribing Information. 2026.Needs sourceNo link