Written for Stock My Medicine and clinically reviewed by Hajra Dhanchora, MPharm (GPhC 2216990).
Two numbers answer most questions about Viagra Connect: it typically starts working within 30–60 minutes, and its effects last around 4–6 hours. Inside those numbers there's useful detail - about food, timing, what "lasting" actually means, and why the first attempt isn't always the fair test.
How long does Viagra take to work?
Sildenafil (Viagra's active ingredient) reaches useful blood levels in half an hour to an hour for most men - so the practical advice is to take it about an hour before sex. One big variable: food. A heavy or fatty meal can delay absorption by an hour or more, which is the most common reason a dose seems to "do nothing". On a light stomach it's at its most predictable.
How long does sildenafil last?
The window is roughly 4–6 hours, fading gradually rather than stopping dead. That does not mean a 4-hour erection - it means that within the window, arousal can produce an erection more easily and reliably. Between moments, things subside normally. Sildenafil amplifies arousal; it doesn't replace it, and it doesn't add desire.
Does it keep working after climax?
The medicine is still in your system, so within the window many men can respond again after their usual recovery time - often more readily than without it. What it can't do is abolish the refractory period; that's physiology, not chemistry.
Why it sometimes doesn't work
Around a quarter of first attempts disappoint, and the usual culprits are fixable: taken too soon before (or hours too early), a heavy dinner, more than a drink or two of alcohol, or - most often - nerves, because anxiety is chemically stronger than sildenafil. Give it at least four separate, relaxed attempts before judging. If it genuinely does nothing across several good trials, see your GP rather than doubling doses: never take more than one tablet in 24 hours.
Sildenafil side effects: what's normal, what isn't
Common and passing: headache, facial flushing, a blocked nose, mild indigestion, occasionally a blue-ish tint to vision. All fade with the drug. Seek urgent help for chest pain, sudden vision or hearing loss, or an erection lasting over 4 hours (priapism - rare, but a genuine emergency that can cause permanent damage). And the absolute rule from the checkout questionnaire bears repeating: never combine sildenafil with nitrate medicines or poppers - the blood-pressure drop can be dangerous.
Getting it without awkwardness
Viagra Connect is a pharmacy medicine: a short confidential questionnaire at checkout, reviewed by our pharmacist, plain packaging, nothing identifying on the parcel or statement. If you'd rather talk it through first - timing, alternatives, whether your other medicines fit - our pharmacist answers quietly and without judgment. The full range lives in erectile care.
Frequently asked questions
Can I take Viagra Connect every day?
One tablet in 24 hours is the ceiling. Daily use is legitimate for some men, but patterns like that belong in a GP conversation about the right long-term option.
Does alcohol stop it working?
A drink is fine; several work directly against it - alcohol is itself a cause of erection difficulty. Keep it light on the nights it matters.
Is 50mg enough?
50mg is the standard and only over-the-counter dose, and it suits most men. If it consistently underperforms after proper attempts, a GP can assess whether 100mg - prescription only - makes sense.