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. Magnesium deficiency can worsen torsades risk in patients receiving QT-prolonging drugs such as haloperidol.
Mechanism. Adequate magnesium stabilizes cardiac repolarization and reduces arrhythmia susceptibility.
Recommendation. Correct low magnesium under clinician guidance when QT risk factors are present.
Stack Score
How it moves the number.
Effect on the composite score
If both Haloperidol and Magnesium Glycinate 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. Haloperidol tablets US Prescribing Information. 2025.Needs sourceNo link