Comparing Prices for Sildenafil Across UK Retailers

For most men, the effects of Sildenafil can last for up to 4-5 hours, although it can range from 2-6 hours depending on the individual. Sildenafil can safely be used daily, if you’re intending to have sex daily, however, the effects of Sildenafil don’t accumulate if you take more in advance.

Why is a prescription required for erectile dysfunction medicines?

Seek emergency medical attention if you experience any of these serious side effects. Learn more about the common warnings and precautions to consider before taking generic Viagra®. You can get the generic for Viagra® through an online or local pharmacy with a prescription from a licensed medical provider. Generic for Viagra® is not available over-the-counter. To get genuine generic for Viagra®, ensure that you are seeing a healthcare provider licensed in your state and have your prescription filled by a qualified pharmacy, one that is licensed in your state and has 3rd-party accreditations like LegitScript.

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All content on this page has been medically reviewed by: Hassan Thwaini, Clinical Pharmacist and Copywriter, Master of Pharmacy (MPharm) on 30 March, 2026. Sildenafil is an effective treatment for erectile dysfunction. It contains the same active ingredient as branded alternatives. Sildenafil works by encouraging more blood to flow to the penis, ensuring a strong erection when you need one. It’s effective for 82% of men.1 Find the clinically proven ED treatment that suits you best.

Are there alternatives to Viagra?

No names, no logos, no delivery fee. 4.6* from over 33,000 people like you. BSc (Hons) MBBS MRCGP AFHEA MA (Hons) AFMCP “Efficacy and Safety of Sildenafil Citrate for Treatment of Erectile Dysfunction in a Population With Associated Organic Risk Factors.” Journal of Andrology (2013). “Efficacy and Safety of Sildenafil Citrate for Treatment of Erectile Dysfunction in a Population With Associated Organic Risk Factors.” Journal of Andrology (2013). Answer a few simple questions to get the treatment you need. Use it only when you need it.

Product	Dosage	Quantity + Bonus	Price
Viagra Generic	200mg	180 + 10 Pills	277.56€ 264.34€	Buy
Viagra Generic	25mg	270 + 8 Pills	184.26€ 175.49€	Buy
Viagra Generic	200mg	360 + 10 Pills	481.98€ 459.03€	Buy
Viagra Generic	50mg	10 Pills	26.87€ 25.59€	Buy
Viagra Generic	50mg	90 + 6 Pills	107.37€ 102.26€	Buy
Viagra Generic	100mg	20 Pills	45.58€ 43.41€	Buy
Kamagra Polo	100mg	84 + 4 Pills	244.49€ 232.85€	Buy
Kamagra	100mg	20 Pills	86.09€ 81.99€	Buy
Kamagra Oral Jelly	100mg	110 + 9 Sachets	334.87€ 318.92€	Buy
Kamagra Soft Tabs	100mg	84 + 4 Pills	233.05€ 221.95€	Buy
Viagra Generic	150mg	90 + 6 Pills	147.18€ 140.17€	Buy
Viagra Generic	50mg	120 + 6 Pills	129.64€ 123.47€	Buy
Viagra Generic	100mg	360 + 10 Pills	330.21€ 314.49€	Buy
Kamagra Polo	100mg	272 + 12 Pills	622.94€ 593.28€	Buy
Viagra Generic	50mg	20 Pills	40.52€ 38.59€	Buy

Sildenafil usually starts to work within 30-60 minutes.

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This means that the generic form of Viagra ® will have the same therapeutic effect, but at a lower cost Yes, generic forms of Viagra® are just as safe as Viagra®. Both Viagra® and generic for Viagra® were approved by the Food and Drug Administration (FDA) to treat ED and millions of men have used Viagra® or the generic for Viagra® to treat their erectile dysfunction. Generic medications do not compromise the safety of a medication. The cost is lower than brand name medication for many reasons, most notably because the brand name medication is no longer legally protected against competition from other manufacturers. Generic for Viagra® may not be safe for men with some pre-existing conditions or who are taking medications that may interact with the drug.

Bismuth film electrode for stripping voltammetric measurement of sildenafil citrate

If you have (or have ever had) heart problems (such as a heart attack), heart disease, irregular heartbeat, angina, chest pain, narrowing of the aortic valve, heart failure, heart surgery, pulmonary hypertension including pulmonary arterial hypertension, stroke, low blood pressure, high blood pressure, a deformed penis shape (Peyronie’s Disease), priapism (an erection that lasts for more than 4 hours), sickle cell anemia, multiple myeloma, leukemia, retinitis pigmentosa (a rare genetic eye disease), severe vision loss (such as NAION), bleeding problems, stomach ulcers, liver problems or kidney problems (such as kidney dialysis), you may be at higher risk for adverse effects. If you have any of these health conditions, or any other health condition, tell your healthcare provider. Your provider should be aware of all medical conditions, prescription drugs and over-the-counter meds that you are taking. Multiple companies make generic for Viagra®, including Teva Pharmaceuticals and Greenstone, a subsidiary of Pfizer Inc. Take sildenafil (generic for Viagra®) about one hour before sexual activity, as it takes about 30 minutes to an hour to begin working.

How long does it take Viagra to work?

Check out our guide on how to take Viagra® for best results. If you are currently taking any over-the-counter, recreational or prescription drugs or supplements, tell your healthcare provider. Some medications, like nitroglycerin (nitrates), isosorbide dinitrate, riociguat, ritonavir, itraconazole, ketoconazole, alpha blockers and “poppers”, have well-documented drug interactions with sildenafil and could cause serious side effects. If you are currently taking a PDE5 inhibitor, like Revatio for pulmonary arterial hypertension, talk to your doctor about adjusting your dosage. There are also some rare, serious side effects of sildenafil, namely an allergic reaction, sildenafil 50g loss of vision/hearing, or priapism, an erection lasting for more than four hours. Maximum erection potential is usually after 1 hour. It’s important to remember that the pill won’t give you an automatic erection – you still need sexual stimulation to maintain a good erection. Eating a heavy meal or drinking too much alcohol before taking Sildenafil can also mean the drug is slower to take effect.

Can you get Viagra without a prescription?

“Great service, helps me stay healthy and sexually active. Sildenafil is the active ingredient in Viagra, just without the brand name. The more cost effective way for easier erections. Clinically proven and used by millions worldwide. You still need to be sexually aroused for it to work, so everything needs to be exciting.

How much does Viagra cost using the NHS?

Take a pill an hour before you want to have sex. Sildenafil starts to work within 30-60 mins and maximum erection potential happens around the 1 hour mark. Sildenafil lasts for around 4 hours (sometimes longer for some men). About 40% of men have erection difficulties by age 40. Whatever the cause, it helps for the vast majority of men. It’s suggested that 80% of men who take Sildenafil achieve erections strong enough for sex.

• Sildenafil is used predominantly for treating erectile dysfunction in men.
• It can also be prescribed for pulmonary arterial hypertension under medical supervision.
• The medication should only be used as directed by a healthcare professional.
• Not suitable for all men, especially those with heart issues or on certain medications.
• Discuss your health history thoroughly with your doctor before using sildenafil.
• Do not take more than the prescribed dose to avoid adverse effects.
• Sildenafil does not cure ED but helps manage symptoms effectively.
• Combining sildenafil with recreational drugs can be dangerous; seek medical advice.
• Inform your healthcare provider about all medicines you are taking before starting sildenafil.
• If you experience a sudden vision loss, seek emergency medical care immediately.

In a review of 82 trials covering over 47,000 patients, Sildenafil 50mg was found to be the most effective of all other comparable medications. Hence why it's our treatment of choice here at Manual.

What It Contains

Cost-effective, most popular, on-demand dosing Hypotension (blood pressure <90/50 mmHg), recent stroke or heart attack We’ll ask you a couple of quick medical questions. Tick the boxes and a clinician will review your answers and issue you a prescription. Your selected treatment will be delivered for free, with discreet packaging and instructions on how to use it. Chat with a medical expert whenever you need. If your treatment doesn't work we will give you a full refund sildenafil otc on your purchase. You can order Sildenafil tablets online in minutes.

Is this service regulated in the UK?

Sildenafil citrate is the active ingredient in branded Viagra, which you can now buy as generic Sildenafil tablets from Manual. Without the famous brand name behind it, Sildenafil is still a successful treatment for erectile dysfunction and will give you the same effects as Viagra, but without the higher price tag. Sildenafil is a PDE5 enzyme inhibitor, meaning it works by allowing blood vessels to expand and relax. This increases blood flow to the penis when a man is aroused, which improves sexual performance for men with erectile dysfunction (ED). Sildenafil and Viagra work in exactly the same way, because the active ingredient (sildenafil citrate) is the same. You'll just need to follow these steps: Get started by selecting your desired strength, frequency, and the number of pills. If you’re unsure, get in touch with us.

Brand Name	Manufacturer	Price Range (£)	Dosage Forms	Availability
Viagra	Pfizer	20-50	Tablets, Chewables	Widely available
Sildenafil Citrate	Harmony Pharma	15-40	Tablets	Pharmacist-verified
Kamagra	Ajanta Pharma	10-35	Oral Jelly, Tablets	Online pharmacies

Confirm in our questionnaire that you’re over 18, you need the medicine, and you’ll be the one using it.

• Be patient when first using Sildenafil; it may take a few attempts to perfect.
• Factors like food, alcohol, and nervousness can influence the results.
• Try to relax and not focus too heavily on the performance aspect.
• Communicate with your partner to reduce anxiety and pressure.
• If you experience side effects, they often diminish with continued use.
• Taking a lower dose might help reduce the severity of side effects.
• Sildenafil has a well-established safety profile from decades of use.
• Millions of men worldwide have used Sildenafil successfully for ED.
• It remains one of the first-line and most effective treatments available.

Declare that you don't have a history of heart disease, Peyronie's disease, high blood pressure, stomach ulcers, or other relevant medical conditions.

Can erectile dysfunction be a sign of another health condition?

“We see a number of guys who take [Viagra] recreationally and we might get a sideways question like, ‘my mates are using it – is there any harm?’ You don’t get people coming in and asking for it directly, most get information from friends and order it online.” He added: “It’s the same thing as steroid use in gyms, they are usually a bit worried about taking it and want to check it’s OK.” Rankin said many millennials took the substance because they watched a lot of pornography and felt pressure to perform. But they also took it to counteract the effect of substances such as alcohol or drugs, which can cause erectile dysfunction. Hayley Quinn, a dating expert, agreed that Viagra use was becoming more common. She said it was common for men to be more concerned about performance than women might think. “The ease of purchase for Viagra has increased,” she said.

How to buy Viagra Online?

“These people are using Viagra recreationally or to counterbalance other recreational drugs … it’s seen as boundary pushing, for a certain set of people. How they feel about Viagra has changed and it’s seen as something that enhances sexual performance.” Generic for Viagra ® contains Sildenafil, a doctor-trusted ingredient that is effective for treating ED, which means that it is just as effective for the treatment of erectile dysfunction as the original ED medication. Generic Viagra® is a PDE5 (phosphodiesterase type 5) inhibitor, which works by blocking the PDE5 enzyme, which in turn temporarily relaxes smooth muscle and improves blood flow to the penis during sexual stimulation. While Viagra® is easily recognizable as the “little blue pill,” the generic for Viagra® comes in many different colors and shapes. Authentic pills may be white or blue, round or diamond, etc.

Who is Viagra (Sildenafil Citrate) for?

The cost of a generic for Viagra® tablet varies based on the strength of the dose of sildenafil it contains, but generally costs anywhere from about $4 to $10 per dose, compared to $50 to $70 per dose for brand-name Viagra®. Through Hims, generic for Viagra® costs 95% less than branded Viagra®. Generic for Viagra ® contains Sildenafil, a doctor-trusted ingredient that is effective for treating ED. Read more about the cost of generic Viagra® and brand-name Viagra® on our blog. The Generic for Viagra ® is called Sildenafil Citrate. If you do have any of these conditions, we’ll be unable to sell you Sildenafil. Please get in touch with us about your options.