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Sildenafil Tablets

From: £7.95

Sildenafil is a cost-effective alternative to Viagra tablets for the treatment of erectile dysfunction. This fast-acting medication can be taken discreetly before sex for results within an hour. It’s quick and easy to buy online – we’ll ask you a few questions to check that this medication is suitable for you, then dispatch it by first class post in unbranded packaging to protect your privacy.

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    Sildenafil is part of a group of drugs known as PDE5 inhibitors. It works by relaxing the arteries at the base of the penis, which increases blood flow to the penis and results in an erection firm enough for fulfilling sex. The active ingredient – sildenafil – is also sold under the brand name of Viagra UK, and the two tablets work in exactly the same way.   

    For sildenafil to work, arousal is still required – the stimulation releases hormones, which cause changes in the way blood flows through the penis.

    You can buy sildenafil in strengths of 25mg, 50mg, and 100mg, but you must only take one every 24 hours. For maximum effectiveness, these tablets are best taken on an empty stomach with water. We recommend taking one tablet an hour before sex for results within 30 to 60 minutes.

    These tablets are safe for most healthy men, but they may be unsuitable for people with conditions such as high or low blood pressure, certain heart problems, and liver or kidney disease. Before you buy sildenafil online, you will need to complete an online consultation form to check that this medication is suitable for you.

    We recommend reading the patient information leaflet before you start treatment.

    Side effects of sildenafil

    As with all medications, sildenafil does carry a risk of side effects. Most men will not experience anything significant, but the most commonly reported side effects include: 

    • Nausea 
    • Hot flushes 
    • Facial flushing 
    • Indigestion 
    • Nasal congestion
    • Headache (including migraine) 

    You may also experience dizziness, drowsiness, or visual disturbances, which could affect your ability to drive. You should test your reaction to this medication before you drive or operate heavy machinery.

    Very rare, but serious, side effects include allergic reactions, chest pains, and fits. It’s also possible that you may experience priapism, which is a painful erection that lasts for two or more hours and requires immediate medical attention.

    Drinking alcohol with sildenafil increases the chances of you experiencing side effects

    We recommend that you read the patient information leaflet, before you begin taking sildenafil. If you have any questions, our pharmacists are on hand to help.

    What is Sildenafil?

    Sildenafil is an effective treatment for erectile dysfunction. It’s a cheaper alternative to Viagra but it contains the same active ingredients and is just as effective.

    For a longer-lasting, firm erection, take one tablet 30 to 60 minutes before sex.

    How long does Sildenafil last?

    You can expect the effects of Sildenafil to last for around four to five hours.

    This doesn’t mean you will have an erection that won’t go down for hours. Erectile dysfunction treatments only work when you are sexually aroused.

    How much Sildenafil is too much?

    The highest strength of Sildenafil available is 100mg. You should never take more than one tablet in a 24-hour period. You should not take Sildenafil more than once a day to increase its effectiveness.

    Taking too much Sildenafil increases the chances of you experiencing side effects and their severity. If you have taken more tablets than you should, speak to your doctor.

    What is Sildenafil used for?

    Sildenafil is used to treat erectile dysfunction (ED) in adult men. It is a cheaper alternative to Viagra, but contains the same active ingredients and is just as effective.

    Erectile dysfunction occurs in half of all men aged between 40 and 70. Though it’s incredibly common, some still consider it too embarrassing to talk about. ED drugs, like Sildenafil, offer a way for you to get back to enjoying a healthy sex life.

    What is the difference between sildenafil and Viagra?

    Viagra works in exactly the same way as sildenafil.

    Viagra UK is the branded version of sildenafil. It was first made by Pfizer, and as a new drug it was heavily promoted, which is why you’ll often hear people refer to all ED medication as Viagra. The original patent expired in 2013, so other generic versions of erectile dysfunction medication are now available on the UK market.

    How does Sildenafil work?

    Sildenafil is a type of PDE5 inhibitor, which prevents your body from breaking down the chemicals you need to achieve an erection. It works by dilating the blood vessels at the base of the penis to increase blood flow for a firm, long-last erection.

    Can women take Sildenafil?

    Sildenafil is not suitable for women.

    Is Sildenafil safe?

    Sildenafil is licensed for use in the UK. This means it has been certified as safe to use by the medicines and healthcare products regulator (MHRA).

    Not everyone is suitable to take Sildenafil, so your doctor or prescriber will check to make sure you are eligible before they prescribe it. They will ask you about your health and any other medication or supplements you are currently taking.

    If you plan to buy Sildenafil online, ensure that you’re using a registered online pharmacy. Sildenafil is a prescription-only medicine and it must be prescribed by a pharmacist or a doctor, who will make sure it’s safe for you to take.

    Do you take Sildenafil with food?

    Sildenafil is most effective when it’s taken on an empty stomach. That doesn’t mean you can’t take it with food, but a heavy meal can stop it from being absorbed as quickly.

    How do I take Sildenafil?

    You should swallow Sildenafil whole with a glass of water at least an hour before you plan to have sex. It’s best taken on an empty stomach to increase absorption, and you can expect it to take effect within 30 to 60 minutes.

    How long do Sildenafil pills last?

    You can expect Sildenafil pills to last for approximately four to five hours. You have to be sexually aroused for erectile dysfunction treatments to work. So, though the drug will stay in your system for this length of time, you won’t have an erection that lasts hours.

    How long till sildenafil takes effect?

    Sildenafil takes around 30 to 60 minutes to take effect. We recommend taking one tablet at least an hour before you plan to have sex.

    Is it ok to take 100mg of Sildenafil?

    There are three different strengths of Sildenafil – 25mg, 50mg, and 100mg. The recommended starting dose is 50mg of Sildenafil. If you feel this is too weak, and your erection is not firm enough for penetrative sex or it doesn’t last long enough, speak to your doctor or pharmacist about increasing the strength of your dose.

    Is Sildenafil as good as Viagra?

    Sildenafil is just as good as Viagra. In 2013, Pfizer’s patent on Viagra expired and other pharmaceutical companies were allowed to start producing similar versions of the drug using the same active ingredient – sildenafil citrate. As Sildenafil is unbranded, it is much cheaper, but it works in the same way as Viagra and is just as effective.

    What brand of sildenafil tablets would I receive?

    Sildenafil is produced by different manufacturers, so you could receive any brand of tablets when you buy them online with us. However, if you know a particular type is more suitable for you, please let us know when placing your order, or leave a note at the checkout stage. We’ll add this to your account, for future transactions.

    Is Viagra stronger than sildenafil?

    No, the branded and generic versions of these tablets work in the same way.

    They are both available in three strengths – 25mg (low dose), 50mg (regular dose), and 100mg (high dose) to suit differing needs

    Why is sildenafil cheaper than Viagra online?

    Viagra is a brand name so it commands a higher price because of its status. Since the patent on this drug came to an end, more manufacturers have been able to make it, which has driven down the price – even more so when bought online. However, both drugs work in the same way and have the same effect.

    Can I take sildenafil with other medications?

    There are some medications which shouldn’t be taken at the same time as sildenafil, including drugs used to treat:

    • Prostate problems
    • Chest pain
    • Angina
    • Seizures

    During your online consultation, you will be asked about any other medications you are taking, and it’s important that you answer honestly. Some drugs can react with sildenafil and cause serious side effects.

    It is dangerous to take sildenafil alongside the recreational drug, amyl nitrate (poppers).

    Can I take sildenafil and premature ejaculation drugs?

    No, it is not recommended that patients take both drugs at the same time.

    Can I drink alcohol with treatment for erectile dysfunction?

    Small amounts of alcohol, such as a glass of wine or small beer, should not cause any issues. However, large amounts of alcohol can counteract the effects of sildenafil. It may also increase the risk of low blood pressure, dizziness, and heart palpitations.

    How long do sildenafil tablets take to work?

    Sildenafil takes between 30 – 60 minutes to take effect. We recommend taking them one hour before sexual activity.

    Why is sildenafil not working for me?

    If sildenafil is not effective, then it could be because you have had a large meal, which will absorb some of the chemicals released when you take it. We recommend taking the tablet with water on an empty stomach, an hour before sexual activity.

    For sildenafil to work, you must still be aroused – physical or mental stimulation is still needed to release the right hormones into your body. If maintaining an erection is not a problem but you can’t orgasm, then your problem may be a psychological one

    Where can I buy sildenafil?

    Your doctor can prescribe medication to treat erectile dysfunction, or you can buy it from an online pharmacy, like Post My Meds.

    Is it safe to buy sildenafil online?

    Yes, all our medications are approved by the UK’s governing body for regulated medicines and healthcare products (MHRA). Our pharmacists only prescribe medication to customers where we feel it is safe to do so. We’ll determine your suitability in a short online consultation before your order is dispatched.

    Can I buy online without a prescription?

    No, but you can buy them online after you’ve taken a short online consultation. It’s completely confidential and takes only a few minutes.

    Your consultation will be reviewed by our prescribing team, who will then issue a prescription for your treatment and dispense your tablets. At Post My Meds, we ensure all our patients are suitable for treatment before we prescribe medication.

    Is the packaging discreet?

    Yes, we post all orders in unbranded, generic packaging – the only thing that will be on there is your name and address.

    Do you need more information? You might find what you’re looking for in our frequently asked questions or the patient information leaflet for sildenafil online.

Although all of our content is written and reviewed by healthcare professionals, it should not be substituted for or used as medical advice. If you have any questions about your health, please speak to your doctor.

Authored Dec 02, 2015 by Joseph Issac, MPharm
Reviewed Oct 25, 2021 by Prabjeet Saundh, MPharm