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Sexual Health
Viagra
Sildenafil · Film-coated tablets
Sildenafil, a PDE5 inhibitor used for erectile dysfunction.
- Partner pharmacy
- Personal assistance
- Discreet delivery
- Active ingredientSildenafil
- AdministrationOral, before sexual activity
Shipping & Delivery
- Normally dispatched within 24 hours of payment confirmation.
- UPS Express · £12 · Approx. 7–9 business days
- Registered Mail · £8 · Approx. 14–20 business days
What Viagra is
Viagra contains sildenafil, a phosphodiesterase type 5 (PDE5) inhibitor. It is used for erectile dysfunction and works only with sexual stimulation.
Suitability and dosing are decided by a prescriber on the basis of the approved product information.
PDE5 inhibition, with sexual stimulation
During sexual stimulation, nitric oxide raises levels of cGMP in the penis, relaxing smooth muscle and increasing blood flow. Sildenafil blocks PDE5, the enzyme that breaks down cGMP, so the natural response is stronger and lasts longer. Without sexual stimulation it has no effect.
PDE5Inhibited; cGMP breaks down more slowly.
TimingUsually taken about one hour before sexual activity.
In placebo-controlled trials, sildenafil improved erections in men with erectile dysfunction of different causes.1
Side effects and warnings
Commonly reported side effects include:
- Headache, flushing and indigestion
- Nasal congestion and dizziness
- Temporary changes in vision, such as a blue tinge
ImportantMust not be taken with nitrates or riociguat, as the combination can cause a dangerous drop in blood pressure. Seek urgent help for an erection lasting more than 4 hours or for sudden loss of vision. Always read the patient information leaflet.
Product information
Common questions
Do I need a prescription?
Viagra is a prescription-only medicine. After your request, the partner pharmacy verifies whether and how supply is possible, for example through an existing prescription or an assessment by an independent doctor where permitted.
When should it be taken?
Usually about one hour before sexual activity, and not more than once a day. A heavy meal can delay its effect.
Does it work without sexual stimulation?
No. It strengthens the natural response to sexual stimulation and does not cause an erection by itself.
Do I pay when I send a request?
No. Payment is arranged individually with customer service once your request has been reviewed and can proceed.
Sources
- Goldstein I, et al. Oral sildenafil in the treatment of erectile dysfunction. N Engl J Med. 1998;338:1397–1404.
- Viagra: Summary of Product Characteristics. Pfizer.
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