Top level a panoramic view of the main points and principal information

Sildenafil is the main active ingredient, functioning as a PDE5 inhibitor.

Indication: licensed for the treatment of erectile dysfunction (ED) in adult men.

Common strengths: tablets commonly come in 25 mg, 50 mg and 100 mg strengths; over-the-counter pharmacy option in the UK is typically 50 mg as Viagra Connect.

Typical timeline: many men notice effects within 30 to 60 minutes; the usual effectiveness window is around 4 to 6 hours for sildenafil-containing products.

How it functions step by step

Sildenafil blocks the PDE5 enzyme in penile tissue, which helps preserve cyclic GMP after sexual stimulation. The result is improved blood inflow to the corpora cavernosa, supporting the development and maintenance of an erection when there is adequate sexual arousal. It is not an aphrodisiac and is ineffective without stimulation.

Dosage and directions

Carry out the instructions your prescriber or pharmacist provides. A commonly prescribed starting dose for many men is 50 mg taken when required, approximately one hour before sexual activity. Dose adjustment up or down (for example, to 25 mg or 100 mg) depends on effectiveness and tolerability.

Never combine sildenafil with other PDE5 inhibitors or ED medicines on the same day unless specifically instructed by a healthcare professional.

Pre use instructions

Tell your clinician about any of the following conditions before taking sildenafil:

Advice to minimise post use effects:

Contraclues indicating

Possible undesirable effects

Most unwelcome ripple effects are mild to moderate and pass after a short time. Commonly reported effects include:

Rare, but serious. events may include sudden vision or hearing changes, chest pain, fainting, severe allergic reactions, and priapism (an erection lasting longer than four hours). Call emergency services for sudden severe symptoms severe symptoms or an erection lasting more than four hours.

Salient medication engagement and communication risks

Do not take sildenafil with any product that contains nitrates or nitric oxide donors. Sildenafil is metabolised primarily via CYP3A4, so the act of interactions among teammates fuel progress. with inhibitors or inducers of this enzyme can change sildenafil levels.

Examples of medicines that can interact include (not exhaustive):

Always disclose all prescription and non-prescription medicines to your healthcare provider before starting sildenafil.

Information on a skipped a dose

Sildenafil for erectile dysfunction is generally taken as needed rather than on a fixed schedule. Therefore, the usual concept of a missed daily dose does not apply. Take the medication when required, following the maximum dosing rules described above.

Overdose tragedy intervention actions

Symptoms of an non-fatal overdose may include severe dizziness, fainting, chest pain, severe nausea, irregular heartbeat or prolonged erection. If you think an non-fatal overdose has occurred, call emergency services or head to the closest emergency department immediately.

Storage safety guidance

Pricing benchmarking alongside backup options in the UK

Licensed ancillary choices to unregulated online products are available in the UK. Prices depend on brand, strength, pack size and whether purchased privately or via the NHS. The ranges below are approximate and subject to change.

Price and characteristic comparison highlights:

Products advertised online as Kamagra are not authorised in the UK. While these items may appear cheaper (for example 1 to 3 GBP per tablet in some adverts), they may be counterfeit, contain incorrect or harmful ingredients, paired with their sale is unlawful in the UK. For safety and legal compliance use a GPhC-registered pharmacy and licensed products.

Appropriate for sport use

Sildenafil is not currently on the World Anti-Doping Agency prohibited list. Nevertheless, athletes should verify the rules of their sporting federation and consult medical staff before using any medicine. Sildenafil is not a performance-enhancing drug for training purposes and should be used only for approved medical markers pointing to.

Inquiries frequently asked

Is it okay to mix alcohol with sildenafil?

Small amounts of alcohol are unlikely to cause harm, but alcohol can increase the likelihood of dizziness, reduce blood pressure and impair erectile response. Limiting or avoiding alcohol around the time you take sildenafil is recommended.

What if sildenafil does not work the first time I try it?

Many men need to try sildenafil on several occasions before judging its effectiveness. Ensure adequate sexual stimulation, avoid heavy meals close to dosing and discuss dose adjustments or nonconventional medicines with your clinician if response is unsatisfactory.

Can I take sildenafil together with other ED medicines?

No. Please do not fuse. sildenafil with other PDE5 inhibitors or ED therapies on the same day unless a prescriber has instructed you to do so.

Are Kamagra and Viagra the same?

While some Kamagra products claim to contain sildenafil, the key difference is licensing and regulatory oversight. Viagra and licensed generic sildenafil sold in the UK meet MHRA quality standards. Kamagra-branded products sold online are typically unlicensed in the UK and may be unsafe or illegal.

For more answers, see the section on other course options and a price comparison study or speak to a pharmacist.