Sildenafil
(generic Viagra)
The generic version of Viagra, with the same active ingredient for less. Take it about an hour before sex and it works for up to 4 hours. MHRA-approved.
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AVANAFIL · PDE5 INHIBITOR · ERECTILE DYSFUNCTION TABLET
Spedra is the brand name for avanafil, a prescription-only tablet used to treat erectile dysfunction (ED) in adult men. ED is when you cannot get, or keep, an erection firm enough for satisfactory sex.
ABOUT THE MEDICATION
Spedra is the brand name for avanafil, a prescription-only tablet used to treat erectile dysfunction (ED) in adult men. ED is when you cannot get, or keep, an erection firm enough for satisfactory sex. Avanafil belongs to a group of medicines called phosphodiesterase type 5 (PDE5) inhibitors, the same family that includes sildenafil (Viagra) and tadalafil (Cialis).
One practical advantage of Spedra is speed. It is licensed to be taken approximately 15 to 30 minutes before sex, compared with around an hour for sildenafil, and it can be taken with or without food. Spedra is taken only when you need it rather than every day. It treats the symptoms of ED but does not cure the condition.
KEY FACTS
Spedra tablets contain avanafil and come in three strengths: 50 mg, 100 mg and 200 mg. The usual starting dose is 100 mg.
Spedra is licensed in the UK by the MHRA and is available on prescription.
Spedra is taken approximately 15 to 30 minutes before sex (about 30 minutes for the 50 mg dose).
Spedra can be taken with or without food, although a high-fat meal may delay the time it takes to work.
Spedra only works if you are sexually stimulated. It will not cause an erection on its own, so you and your partner will still need foreplay, just as you would without medicine.
Take 15 to 30 minutes before sex
With or without food
Three strengths: 50, 100 and 200 mg
No more than one tablet in 24 hours
How Spedra Works
When you are sexually aroused, your body releases a substance called nitric oxide in the penis. This raises the level of a chemical messenger called cGMP, which relaxes the muscle in the walls of the blood vessels so that blood can flow into the penis and produce an erection.
Spedra only works if you are sexually stimulated. It will not cause an erection on its own, so you and your partner will still need foreplay, just as you would without medicine.
In Practice
An enzyme called PDE5 normally breaks cGMP down. Spedra blocks PDE5, so cGMP lasts longer and it becomes easier to get and keep an erection.
In a study designed to test how quickly it works, some men were able to have successful sex around 15 minutes after taking Spedra. These benefits were maintained in longer-term studies.
Spedra can be taken with or without food, but it may take longer to work after a meal, particularly a high-fat one.
Dosing & How to Take
The usual starting dose is one 100 mg tablet, swallowed approximately 15 to 30 minutes before sex, only when you need it.
Depending on how well it works and how well you tolerate it, your clinician may increase the dose to 200 mg or lower it to 50 mg. The 50 mg tablet is taken about 30 minutes before sex.
Spedra can be taken with or without food, but it may take longer to work after a meal, particularly a high-fat one.
Never take more than one tablet in 24 hours. If you take more Spedra than you should, tell your doctor straight away, as you may get more side effects and they may be more severe.
Side Effects
Most side effects of Spedra are mild to moderate.
Headache, flushing and a blocked or stuffy nose
Dizziness, feeling sleepy or tired, sinus congestion, back pain, hot flushes, breathlessness on exertion, a faster or pounding heartbeat, indigestion, feeling or being sick and blurred vision
An erection that lasts more than 4 hours (priapism), which must be treated quickly to avoid lasting damage to the penis
Blurred vision, or a sudden decrease or loss of vision in one or both eyes
A sudden decrease or loss of hearing, which may come with dizziness or ringing in the ears
Drinking alcohol at the same time as taking Spedra may lower your blood pressure and increase your heart rate, making you feel dizzy (especially when standing up), giving you a headache or making you aware of your heartbeat. Alcohol can also make it harder to get an erection.
Effectiveness
58%
of attempts successful on 100 mg, vs around 28% on placebo
In men with ED in the general population, around 47%, 58% and 59% of attempts at sex were successful with the 50 mg, 100 mg and 200 mg doses respectively, compared with around 28% on placebo.
40%
of attempts successful on 200 mg, vs 21% on placebo
In men with type 1 or type 2 diabetes, around 34% (100 mg) and 40% (200 mg) of attempts were successful, compared with 21% on placebo.
How well Spedra works varies from person to person and depends on your dose and your general health. In four randomised, placebo-controlled trials involving 1,774 men taking avanafil, all three strengths led to significantly more successful attempts at sex than placebo.
Spedra was also effective in men with ED after nerve-sparing prostate surgery.
Spedra tablets contain avanafil and come in three strengths: 50 mg, 100 mg and 200 mg. The usual starting dose is 100 mg. Never take more than one tablet in 24 hours.
What to Expect
The usual starting dose is one 100 mg tablet, swallowed approximately 15 to 30 minutes before sex, only when you need it.
The 50 mg tablet is taken about 30 minutes before sex.
In a study designed to test how quickly it works, some men were able to have successful sex around 15 minutes after taking Spedra.
Never take more than one tablet in 24 hours.
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Price includes medication only, if prescribed. An active FromMars membership is required and billed separately. Membership does not include or guarantee a prescription; medication is not available without a membership.
Drug Interactions
Never take Spedra with nitrate medicines or nitric oxide donors such as amyl nitrite, as the combination can cause a dangerous drop in blood pressure.
Must not be taken with Spedra.
Must not be taken with Spedra (see Contraindications above).
With medicines such as erythromycin, diltiazem, verapamil, fluconazole or aprepitant, do not take more than 100 mg of Spedra and leave at least 48 hours between doses.
You should be stable on your alpha-blocker before starting Spedra, and start at the lowest dose of 50 mg.
Such as carbamazepine, phenobarbital, primidone, rifampicin, bosentan and efavirenz. Using these together is not recommended.
Tell your clinician if you take medicines for an irregular heartbeat, such as quinidine, procainamide, amiodarone or sotalol.
Avoid for 24 hours before taking Spedra.
Do not use Spedra with any other medicine or treatment for erectile dysfunction.
Always tell your healthcare provider about everything you take, including prescription medicines, over-the-counter products, vitamins and herbal supplements.
WARNINGS
Spedra is for men aged 18 and over who have erectile dysfunction. It is not for women, and it will not help if you do not have ED. Before prescribing, a FromMars clinician will review your medical history, your heart health, your blood pressure and any other medicines you take. It is not the right medicine for everyone.
• take any form of nitrate medicine for chest pain (angina), such as glyceryl trinitrate (GTN), or use nitric oxide donors such as amyl nitrite ("poppers") • take riociguat, a medicine for high blood pressure in the lungs • take certain strong medicines that stop the body breaking down Spedra, including ritonavir, atazanavir, indinavir, nelfinavir and saquinavir (for HIV), ketoconazole, itraconazole and voriconazole (for fungal infections), clarithromycin and telithromycin (antibiotics) and nefazodone
• have had a heart attack, a stroke or a life-threatening irregular heartbeat in the last 6 months • have low blood pressure (below 90/50 mmHg) or high blood pressure above 170/100 mmHg • have unstable angina, get chest pain during sex, or have heart failure that causes symptoms during ordinary activity
• have severe liver problems or severe kidney problems • have lost sight in one eye because of non-arteritic anterior ischaemic optic neuropathy (NAION) • have an inherited degenerative eye condition such as retinitis pigmentosa
• are allergic to avanafil or any of the other ingredients
Safety
Spedra is not for use by women or by anyone under 18.
Heart health: sexual activity puts some strain on the heart. Your clinician will consider your heart health before prescribing. Men with narrowing of the heart's outflow valve (aortic stenosis) or similar conditions can be particularly sensitive to medicines like Spedra. Low blood pressure: Spedra can lower blood pressure slightly. Taking it with alpha-blockers, other blood pressure medicines or alcohol increases the chance of dizziness or fainting.
Prolonged erections (priapism): seek immediate medical help if an erection lasts 4 hours or more. Spedra should be used with caution if you have a condition affecting the shape of your penis (such as Peyronie's disease) or a condition that increases the risk of priapism (such as sickle cell anaemia, multiple myeloma or leukaemia). Bleeding disorders and stomach ulcers: Spedra should only be used after a careful assessment if you have a bleeding disorder or an active stomach ulcer.
Vision problems: visual changes, including central serous chorioretinopathy and NAION, have been reported with PDE5 inhibitors. Stop taking Spedra and contact a doctor immediately if your vision suddenly changes. Sudden hearing loss: stop taking Spedra and seek prompt medical attention if your hearing suddenly decreases or is lost.
Spedra can cause dizziness or affect your vision. If this happens, do not drive, cycle or use tools or machines.
Ongoing Care
Before your first prescription, a FromMars clinician reviews your consultation, including your heart health, blood pressure and other medicines. Each time you reorder, you will be asked to confirm whether anything has changed, such as a new diagnosis or a new medicine.
ED can sometimes be an early sign of other health problems, such as heart disease, high blood pressure, raised cholesterol or diabetes, so it is worth having these checked with your GP. Lifestyle changes such as stopping smoking, cutting down on alcohol, staying active and keeping to a healthy weight can also improve erections over time.
If you need extra support at any point, whether about side effects, changing your dose, switching medicines or anything else, you can message one of our clinicians.
Availability
Spedra is licensed in the UK by the MHRA and is available on prescription. FromMars can prescribe Spedra following an online consultation with one of our clinicians, if it is suitable for you. The price depends on the strength and the number of tablets you choose, and is shown on the Spedra product page.
READY TO START?
FROM MARS is a registered UK pharmacy so start your online consultation here. If our doctors determine that it is a medically appropriate treatment for you, you’ll get a prescription treatment plan within two hours. We’ll ship your meds to you the next day.