Can stroke patients safely use Viagra? Not within 6 months of a stroke: the Australian Viagra and Cialis leaflets both rule them out for that time. After that, a past stroke is not on either leaflet's list of reasons not to take them, but before prescribing any erectile dysfunction medicine the doctor checks your heart, blood pressure and medicines, because the conditions behind a stroke can rule ED tablets out on their own.
How long after a stroke can you take Viagra?
Six months. The Viagra leaflet says not to take it if "you have suffered a heart attack or stroke in the last 6 months" (Viagra CMI), and the Cialis leaflet sets the same 6 months for a stroke (Cialis CMI). Vardenafil is ruled out after a stroke or heart attack in the last six months too (EMA — Levitra). The rule is there because these men were not studied: sildenafil's safety "has not been studied" after a recent stroke (EMA — Viagra), and men with a stroke in the last 6 months were not included in tadalafil's trials (EMA — Cialis).
What about a TIA or "mini-stroke"?
The leaflets do not name it. A transient ischaemic attack is a temporary blockage of the blood supply to the brain, with stroke-like symptoms that often last a few minutes and clear within 24 hours; it is a medical emergency, and it raises your risk of a stroke (healthdirect — stroke). Tell the doctor who prescribes an ED tablet about any TIA, and about the heart and blood-pressure tests that followed.
Can Viagra cause a stroke?
Rarely, a stroke has been reported. The sildenafil label lists stroke and TIA among its rare side effects, seen in fewer than 1 man in 1,000, and bleeding in the brain and TIA among the serious events reported after the medicine went on sale. Most, but not all, of those men already had cardiovascular risk factors, and it is not possible to determine whether the medicine, sexual activity or other factors caused the events (EMA — Viagra). The tadalafil label lists stroke, including bleeding strokes, as rare, mostly in men with the same risk factors (EMA — Cialis).
What else decides it after a stroke?
The conditions and medicines that come with it. High blood pressure is a stroke risk factor, and Viagra is ruled out while blood pressure is "unusually high or low or is not effectively treated" (Viagra CMI). Atrial fibrillation, an irregular heartbeat, can let a clot form in the heart and travel to the brain (healthdirect — atrial fibrillation); see atrial fibrillation and erectile dysfunction. After an ischaemic stroke, your doctor may prescribe aspirin or a blood thinner (healthdirect — stroke): see Viagra with blood thinners and Xarelto with Viagra or Cialis. A nitrate for angina, or amyl nitrite ("poppers"), rules Viagra out at any time (Viagra CMI).
Is sex safe after a stroke?
Yes: "Research shows sex does not increase your risk of having another stroke," says the Stroke Foundation, which lists trouble getting or keeping an erection among the changes a stroke can bring, along with fatigue, weakness and less or more interest in sex. Its advice: "If you have trouble getting an erection, talk with your GP. They can let you know if erectile dysfunction medication is safe for you." Occupational therapists and physiotherapists can suggest positions, and StrokeLine (1800 787 653) answers questions (Stroke Foundation). Some medicines used after a stroke can play a part too: healthdirect lists some blood-pressure, cholesterol and depression medicines among the causes of erection problems (healthdirect — ED).
Can Viagra help you recover from a stroke?
That is not an approved use, and the evidence is thin. In the one small safety study, 12 people took 25 mg of sildenafil daily for 2 weeks from a few days after an ischaemic stroke; one died suddenly during treatment, and the authors judged the dose "appeared to be safe" in that group, with higher doses still to be tested (Silver et al., 2009). In four trials of 236 people with small-vessel disease of the brain, sildenafil or tadalafil raised the blood supply to damaged white-matter areas but did not improve thinking or memory, and side effects were more common than on placebo (Yan et al., 2026).
The short answer
Not in the first 6 months after a stroke. After that, Viagra or Cialis may be an option if your blood pressure is controlled, your heart can cope with sex and you use no nitrates; the prescriber also needs to know about any blood thinner. For heart conditions, see is Cialis safe for heart patients? and Viagra after a heart stent; other conditions are in our guide to ED and health conditions.
