TL;DR: The evidence does not support statins as a common cause of erectile dysfunction. A meta-analysis found statin use was not associated with increased risk of new-onset ED, and some studies suggest statins may actually improve erectile function by enhancing blood vessel health. If you are on a statin and experiencing ED, the more likely culprit is the cardiovascular disease the statin is treating — not the drug itself.
Statins are among the most prescribed drugs in the UK. They are also among the most blamed for side effects that may have nothing to do with them. Erectile dysfunction sits high on that list — and the science tells a more complicated, and for most men more reassuring, story than the worry usually suggests.
Are Statins Officially Listed as Causing Erectile Dysfunction?
Sexual dysfunction does appear as a listed side effect in the product information for some statins — but what that actually means is worth understanding before drawing conclusions.
Drug regulators require manufacturers to list any adverse event that has been reported during clinical use or trials, regardless of whether the drug was actually the cause. A side effect being listed does not mean it is common, proven, or even probable. For statins, sexual dysfunction tends to appear under categories labelled “rare” or “frequency unknown” — meaning it has been reported, but not at a rate that establishes a clear causal link.
There is also a well-documented phenomenon called the nocebo effect — the opposite of placebo. Men who are told a medication might cause sexual problems are measurably more likely to report them, even when taking a dummy pill. Several statin studies have identified this as a significant factor in the reporting of sexual side effects, particularly in men who are already anxious about their cardiovascular health.
The NHS lists cardiovascular disease, high blood pressure, high cholesterol, and diabetes as the primary physical causes of ED — the same conditions statins are used to treat. The statin itself is rarely the issue.
What the Clinical Research Actually Shows About Statins and ED
The picture from published research is genuinely mixed — but the higher quality evidence points away from statins causing ED.
A systematic review and meta-analysis examining statin use and the risk of new-onset erectile dysfunction found a risk ratio of 0.96 — statistically, there was no significant association between taking a statin and developing ED for the first time. The confidence interval crossed 1.0, meaning the data was consistent with statins having no effect on erectile function at all. This is among the most rigorous analyses on the question and its findings are reassuring.
A more recent study using data from the National Health and Nutrition Examination Survey, published in PMC in 2025, did find an association between statin use and ED after adjusting for multiple confounding factors — an odds ratio of 1.77 after adjustment. That sounds significant, but it needs careful reading. The men in this study were taking statins precisely because they had cardiovascular disease, diabetes, hypertension, and hyperlipidaemia — all of which independently cause ED. Even after statistical adjustment, fully separating the effect of the statin from the effect of the conditions being treated is extraordinarily difficult. The study’s authors acknowledged this, describing the findings as requiring “nuanced interpretation” and calling for further research.
The honest summary: some studies find an association, the best-quality meta-analyses do not, and the underlying cardiovascular disease is a far more plausible explanation than the statin in most cases.
The Case That Statins May Actually Improve Erections
This is where the story gets genuinely interesting — and counterintuitive.
Erectile dysfunction is, at its core, a vascular problem. An erection requires blood to flow into the penile arteries in sufficient volume. Those arteries need to be healthy, flexible, and responsive to nitric oxide signalling. Atherosclerosis — the narrowing and stiffening of arteries from fatty plaque build-up — directly impairs this. And statins work, in part, by slowing and reversing atherosclerosis and improving endothelial function.
Several studies have shown modest but meaningful improvements in erectile function scores in men with cardiovascular disease or high cholesterol who were started on statins. The mechanism makes biological sense: better endothelial health means better nitric oxide response, which means better vascular dilation, which means better blood flow to the penis.
This does not mean statins are an ED treatment. The improvements seen are modest and most pronounced in men whose ED is primarily vascular — which is not every man. But it does mean the common assumption that statins must be making ED worse has limited support in the evidence, and for some men the opposite may be true.
Why the Cardiovascular Disease Is the More Likely Cause Than the Statin
Men who are prescribed statins are prescribed them because they have elevated cardiovascular risk — high cholesterol, a history of heart disease, or a combination of risk factors that put their ten-year cardiovascular event risk above the treatment threshold.
Those same risk factors — high cholesterol causing arterial stiffening, hypertension damaging blood vessel walls, diabetes impairing nitric oxide function — are also the leading physical causes of erectile dysfunction. Men with cardiovascular disease are significantly more likely to have ED than the general population, entirely independently of any medication they take.
This is what makes the research so difficult to interpret. When a man with atherosclerosis, hypertension, and type 2 diabetes starts a statin and notices erection problems, attributing those problems to the statin rather than to the three conditions that were already silently damaging his vasculature requires careful clinical thinking — not a quick assumption that the newest drug is to blame.
The PMC NHANES study found that even after adjusting for these factors, an association remained — but the authors were clear that residual confounding was likely. The honest clinical position is that the underlying cardiovascular disease is the primary driver of ED in most men on statins, and the statin is almost certainly not making it worse.
Medications With Stronger Evidence for Causing ED
If medication is genuinely contributing to ED, statins are among the less likely culprits. Several drug classes have considerably stronger evidence for causing sexual dysfunction.
The NHS confirms that medicines known to cause erection problems include certain antidepressants — particularly SSRIs such as sertraline and fluoxetine — some antihypertensives including thiazide diuretics and, to a lesser extent, beta blockers, some antipsychotics, and certain treatments for prostate conditions including finasteride and tamsulosin.
If you are on a statin alongside any of these medications and experiencing ED, the other drug is worth discussing with your GP before the statin. The cardiovascular protection that statins provide is substantial and well-evidenced — stopping them without good reason carries real risk.
What to Do If You Take a Statin and Have Erectile Dysfunction
The most important thing: do not stop your statin without speaking to your GP first. The cardiovascular benefit of statin therapy is significant. Stopping abruptly because of a suspected sexual side effect — when the evidence for that link is weak — means taking on real cardiovascular risk to solve a problem the statin likely did not cause.
A proper clinical assessment is the right move. ED in a man on a statin is a signal to investigate — not a reason to stop the medication. That assessment should cover blood pressure, a full lipid panel, blood glucose or HbA1c, and testosterone. Checking these markers reveals whether there is a cardiovascular, metabolic, or hormonal driver behind the ED that can be directly addressed.
If, after a thorough assessment, there is genuine clinical suspicion that a specific statin is contributing, your GP can consider switching you to a different type. Some men do report tolerating one statin better than another — atorvastatin and rosuvastatin are generally better tolerated in terms of reported side effects than some older agents like simvastatin.
ED alongside statin use is also treatable directly. PDE5 inhibitors such as sildenafil (Viagra) and tadalafil can be safely used alongside statins and are effective in men with cardiovascular disease — in fact, they are among the most studied ED treatments in this population.
At The Private GP in Birmingham, a private GP consultation and private blood tests can cover the full picture — testosterone, cardiovascular risk markers, blood pressure, and blood glucose — with same-day results and no waiting list.
Frequently Asked Questions
Should I stop taking my statin if I think it’s causing ED?
No — not without speaking to your GP first. Statins provide significant cardiovascular protection, and the ED is more likely caused by the underlying cardiovascular disease than the drug. A proper clinical assessment will identify what is actually driving the problem.
Which statins are least likely to cause erectile dysfunction?
There is no strong clinical evidence that any one statin causes significantly more ED than another. If you suspect a specific statin is affecting you, discuss switching with your GP — some men do report tolerating atorvastatin or rosuvastatin better than older agents such as simvastatin.
Can I take ED medication like sildenafil alongside a statin?
Yes. PDE5 inhibitors including sildenafil and tadalafil are safe to use alongside statins and are widely prescribed for men with cardiovascular disease. The main interaction to be aware of is with nitrates — if you take nitrates for chest pain, PDE5 inhibitors are contraindicated. Speak to your GP before starting any ED medication.
How long does it take for statins to affect erectile function — if they do at all?
There is no established timeline because the causal link is not proven. If a statin is going to improve erectile function by improving vascular health, this would be expected to develop gradually over months as endothelial function improves and plaque burden reduces.
If statins improve blood flow, why do some men still report ED while taking them?
Because ED is multifactorial. A statin may be improving vascular health while other factors — low testosterone, psychological stress, antidepressants, diabetes, or significant pre-existing arterial damage — continue to drive ED independently. Improving one factor does not automatically resolve a problem with multiple contributing causes.