Supplement × Prescription·a caution·Emerging evidence

Candesartan + Coenzyme Q10

Caution Emerging evidence

Coenzyme Q10 has shown a mild blood-pressure-lowering effect in some trials. When combined with candesartan, the antihypertensive effect could be slightly additive, occasionally producing lightheadedness in sensitive individuals.

From the database

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Pair type
Caution
Evidence
Emerging
Source citations
1
Scope
Supplement × Prescription
Last verified
June 4, 2026
CautionEmerging evidence

What is happening. Coenzyme Q10 has shown a mild blood-pressure-lowering effect in some trials. When combined with candesartan, the antihypertensive effect could be slightly additive, occasionally producing lightheadedness in sensitive individuals.

Mechanism. CoQ10 may improve endothelial function and vascular tone, contributing a small additive reduction in blood pressure on top of candesartan's effect.

Recommendation. CoQ10 can usually be used alongside candesartan. Monitor blood pressure if starting CoQ10 and report symptoms of low blood pressure such as dizziness or fatigue so dosing can be reviewed.

Stack Score

How it moves the number.

Effect on the composite score

If both Candesartan and Coenzyme Q10 are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).

The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.

Sources

Sources, by evidence tier.

Every claim on this page is cited. PMIDs link straight to PubMed.

Reference material

1
  • 1Ho MJ, Li EC, Wright JM. Blood pressure lowering efficacy of coenzyme Q10 for primary hypertension. Cochrane Database of Systematic Reviews. 2016.Needs sourceNo link

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