Sildenafil, brand name Viagra, is a treatment for erectile dysfunction. It works in combination with sexual stimulation to help a man achieve and maintain an erection for long enough to engage in sexual activity.
Sildenafil works by relaxing the blood vessels that supply the penis. This improves blood flow, making it easier to achieve and maintain an erection. When you first start taking Sildenafil, you may not experience effects straight away. It is recommended that you trial Sildenafil for approximately 1 week, before you switch medications if it doesn’t work for you.
Sildenafil is effective for 65% of people who take it. Erectile dysfunction can vary a lot between people. It is common to have to try several different ED medications before finding the one that works best for you. To help you, an ED Trial Pack is available that contains a selection of the most popular ED medications at a range of doses.
Sildenafil takes 30 minutes to 4 hours to work. Sildenafil does not automatically give you an erection, but it makes it easier to obtain an erection following sexual stimulation.
Sildenafil can last for up to 5 hours. This does not mean that you will have an erection for 5 hours, but that you should be able to get an erection at some point within 5 hours.
Sildenafil is a convenient and effective treatment for erectile dysfunction, but can be dangerous if overused or if used recreationally. It is important to remember that Sildenafil is a prescription drug and should never be used if not prescribed to you personally by a doctor. Purchasing any medication from an unregistered source is extremely risky, as you can never be sure of what exactly you are taking, so though it may seem like a hassle, it is well worth obtaining it on prescription. Sildenafil should never be used where it is not necessary, as improper use puts you at risk of increased side effects and dependence.
Always take Sildenafil as instructed by a doctor or pharmacist, who will also instruct you on your dosage. Swallow one tablet whole with a glass of water approximately an hour before sexual activity. Sildenafil may take longer to work if you have just eaten a heavy or fatty meal. If you feel that your dose is too weak or too strong, your doctor may alter your dosage. Do not take Sildenafil more than once a per day, as taking too much Sildenafil increases the likelihood of experiencing side effects.
The recommended starting dose of Sildenafil is 50 mg taken once daily. This can be increased or decreased if necessary. Increasing the dose past 100 mg will not increase the effectiveness of Sildenafil.
Sildenafil tablets should be swallowed whole with a glass of water and should not be crushed or split.
Sildenafil can be taken daily if necessary, but should not be taken more than once a day. It is only effective in the instance of sexual arousal.
Like all medications, Sildenafil can cause side effects in some patients. If you experience any of the following rare but serious side effects, stop taking Sildenafil and seek medical help immediately:
Headaches may affect 1 in 10 people who use Sildenafil. Other common side effects (up to 1 in 10 cases) include:
Uncommon side effects (affecting up to 1 in 100 side effects) include:
Rarely (1 in 1,000), the following side effects may be experienced:
Do NOT take Sildenafil if:
You should inform your doctor and take particular care when taking Sildenafil if:
Before taking Sildenafil, tell your doctor or pharmacist if you are taking any other medications, including those purchased over the counter without a prescription. Do NOT take Sidenafil in combination with:
Additionally, inform your doctor if you are taking:
The most common side effects of Sildenafil are headaches, flushing and stomach upset, which may affect around 1 in 10 people. Headaches can usually be managed by drinking plenty of fluids and taking over-the-counter painkillers, such as paracetamol or ibuprofen, where necessary. If you experience facial flushing, try and stay cool by applying a cool compress, breathing deeply and trying to relax. If any of these side effects are particularly severe or prolonged, or if you frequently experience stomach upset when taking Sildenafil, speak to a doctor or pharmacist for advice. A doctor may recommend an alternative ED treatment.
Drinking alcohol can inhibit your ability to get an erection. In order to experience the best results of Sildenafil, you are recommended to limit the amount of alcohol you drink.
Sildenafil should not be taken in combination with other erectile dysfunction medications.
It can be dangerous to take Sildenafil with recreational drugs, including stimulants such as ecstacy or cocaine, hallucinogens such as LSD and former-legal highs such as mephedrone. Sildenafil should NOT be taken in combination with poppers (amyl nitrates), as this can have a dangerous effect on the heart.
Viagra is the brand name of Sildenafil used for treatment of erectile dysfunction. Both contain the active ingredient sildenafil and work in exactly the same way, although the generic Sildenafil is significantly cheaper.
Sildenafil (brand name Viagra) is the most well-known and popular treatment for erectile dysfunction. Generic Sildenafil is significantly cheaper than the branded Viagra and works in exactly the same way. Alternative PDE-5 inhibitors have since been developed and are available on prescription in the UK, the most recent being Spendra (Avanafil) which is fast acting. Different treatments may be better suited to different people, and a doctor or the ED Trial Pack will be able to help you decide which is best for you.
A doctor will write a prescription for this medication using the medical name ‘Sildenafil’, but a pharmacist is free to supply any available brand. Viagra is the brand name for Sildenafil prescribed for treatment of ED in the UK, and Revatio is the brand name used for treatment of pulmonary hypertension. The brand Kamagra is not legal in the UK, and can therefore only be purchased illegally through websites that are not registered pharmacies. Doing so runs the risk of purchasing counterfeit medication which can be dangerous.
In the UK, most treatments for erectile dysfunction require a prescription, however, Viagra Connect has recently become available over the counter. Like Sildenafil, Tadalafil (Cialis) and Vardenafil (Levitra) are PDE-5 inhibitors that work by increasing blood flow to the penis in the event of sexual stimulation. Cialis has a longer action time, and can remain effective for up to 36 hours. The new, fast-acting variant called Avanafil (Spedra) takes as little as 15 minutes to take effect and has a similar duration of action to Viagra and Levitra.
Sildenafil is safe for long-term use, although this may lead to psychological dependency. Erectile dysfunction often has a psychological cause, such as anxiety, depression or stress, and continued use of treatments such as Sildenafil may mask these issues and prevent the patient from pursuing more effective, long-term help.
Sildenafil will not cure erectile dysfunction, the root cause of which is often psychological. However, it can help to relieve the stress and anxiety associated with ED in the short term.
There is little evidence to suggest that Sildenafil has any effect on female libido or sexual enjoyment. However, it can be used to treat pulmonary hypertension in women.
It is safe to buy Sildenafil online from a registered pharmacy such as Dr Felix. It is a prescription-only medication and should never be purchased online through any website that does not require a private prescription. Howeve, Viagra Connect contains 50mg sildenafil and is available over the counter without a prescription.
Sildenafil is only available in the UK with a prescription and should not be purchased prescription-free online. Viagra is the branded version of Sildenafil - it is available without a prescription (over the counter) as Viagra Connect.
Over the counter treatment
Works in 15-30 minutes
Effective for up to 5 hours
Effective for up to 4 hours
For daily or intermittent use
Sildenafil, Tadalafil, Vardenafil