One study does not establish routine efficacy
A 2021 study enrolled 230 men with hypertension and erectile difficulties; 209 completed three months. Participants received usual antihypertensive care with or without CoQ10. There was no placebo or blinding, and the authors emphasized a favorable mild-ED subgroup. This is limited evidence for a broad treatment claim. [1]
The report has material inconsistencies
The published dose uses a problematic gram unit, and the narrative description of score comparisons does not align cleanly with the table’s before-and-after values. The paper also uses inconsistent thresholds when describing normal function. These issues mean the report should not be used to choose a dose or claim a reliable cure rate. [1]
Mechanisms and fertility research do not close the gap
Antioxidant or vascular mechanisms can motivate research without proving benefit. NCCIH also describes limited evidence concerning male infertility; sperm measures are not evidence that erections improve. Recurring erectile difficulties can reflect vascular, metabolic, psychological or medication-related factors. [2][3]
Use an assessment-led treatment plan
Imagine a man with hypertension wants CoQ10 instead of discussing erectile symptoms. Review both the symptoms and current medicines with a clinician. Do not stop blood-pressure treatment or assume a supplement avoids the need to investigate an underlying cause. [3]
| Evidence | Limit |
|---|---|
| Open-label subgroup | Bias and uncertain generalizability |
| Inconsistent dose reporting | No dosing inference |
| Fertility endpoint | Not erectile function |
| Persistent symptoms | Needs cause-specific assessment |
Sources for this article
- The Role and Efficacy of Coenzyme Q10 in the Management of Erectile Dysfunction in a Hypertensive Male: An Interventional Study - PMC
Source consulted: 2026-09-21. This is a reference resource, not a claim that we conducted the studies or tested a product. - Coenzyme Q10 | NCCIH
Source consulted: 2026-09-21. This is a reference resource, not a claim that we conducted the studies or tested a product. - Erectile dysfunction (impotence) - NHS
Source consulted: 2026-09-21. This is a reference resource, not a claim that we conducted the studies or tested a product.