Silandyl is an easy-to-take dissolvable oral strip used to treat erectile dysfunction (ED).

Erectile dysfunction (ED) can make intimate moments feel more stressful. If you're worried about getting or keeping an erection, it can knock your confidence and make it harder to relax and enjoy sex. Finding a treatment that works for you can take some of that worry away and help you feel more in control.
Silandyl is an ED treatment that contains sildenafil, the same active ingredient used in Viagra. But instead of swallowing a tablet, Silandyl comes as a film that you place on your tongue and rapidly dissolves. It works in around 30–60 minutes and it last from 4–6 hours. You can take it with or without water, making it a convenient alternative to pills.
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Silandyl is a prescription treatment for erectile dysfunction (ED) in adult men. It contains sildenafil, a PDE5 inhibitor that increases blood flow to the penis when you're sexually aroused. Unlike conventional sildenafil tablets, Silandyl is an orodispersible film, which means it dissolves rapidly on your tongue.
Take Silandyl around one hour before you plan to have sex. The recommended starting dose is 50mg, although our clinical team will advise you on the right dose for you.
To take Silandyl:
Silandyl can be taken without water, although you can drink water if you prefer. Do not take Silandyl more than once a day.
You can take Silandyl with or without food, but if you have a heavy meal it may mean it takes longer to start working. Drinking excessive amounts of alcohol may also make it more difficult for you to get an erection.
Read our guide to find out more about what to expect the first time you take sildenafil.
Keep Silandyl out of the sight and reach of children and store the films in their original packaging to protect them from moisture.
Do not use Silandyl after the expiry date shown on the packaging.
Silandyl contains sildenafil, a well-established treatment for ED. A clinical study has shown sildenafil to be effective with up to 75% of men taking sildenafil reporting improved erections compared with 19% taking placebo.¹
How well Silandyl works can vary from person to person. You can read more about how long sildenafil takes to work and how long you can expect it to last in our guide.
Silandyl and sildenafil tablets contain the same active ingredient. The main difference between them is the way you take them. Sildenafil is a tablet and Silandyl comes as a thin film.
| Silandyl | Sildenafil | |
| Active ingredient | Sildenafil | Sildenafil |
| Generic or branded | Branded | Generic |
| How it’s taken | As a fast dissolving film on the tongue | By tablet |
| Effective within | 30–60 minutes | 30–60 minutes |
| Available strengths | 50mg, 75mg, 100mg | 25mg, 50mg, 100mg |
Silandyl contains the same active ingredient as sildenafil tablets. If you regularly use sildenafil and would like to try a new formulation, you may be able to try Silandyl in place of your usual sildenafil tablet. Or if you find 50mg isn’t enough for you, but 100mg causes side effects, you could try Silandyl 75mg.
Speak to our experienced clinical team and they can check whether Silandyl is suitable for you and advise you on the appropriate dose.
Active ingredient: Sildenafil (as citrate)
Other ingredients include: Maltodextrin, Glycerol, Polysorbate 20, Propylene glycol monocaprylate, Polyvinyl acetate dispersion 30%, Lemon and Grapefruit flavours (Lemon essential oil, Citral, Linalool, Grapefruit essential oil, Orange essential oil, Nootkaton, Butylated hydroxyanisol E320, Ascorbic acid E300, Maltodextrin, Arabic gum E414, Sucralose, Titanium dioxide, Indigotine.
Like all medicines, Silandyl can cause side effects, although not everyone will experience them.
The most common side effect is a headache, which may affect more than 1 in 10 people.
Other common side effects, which may affect up to 1 in 10 people, include:
Stop taking Silandyl and seek medical help immediately if you experience a serious allergic reaction, chest pain, a prolonged or painful erection, a sudden decrease or loss of vision, a serious skin reaction or a seizure.
If you have an erection that lasts for more than 4 hours, contact a doctor immediately.
See our sildenafil side effects guide for more information.
Silandyl is not suitable for everyone. Do not take Silandyl if you:
Speak to your pharmacist before taking Silandyl if you have certain blood disorders, heart problems, a stomach ulcer, a bleeding disorder such as haemophilia or a deformity of the penis, including Peyronie’s disease.
Tell your pharmacist about any other medicines you take or ED treatments you use, as some can interact with Silandyl or affect the dose that’s suitable for you.
Silandyl can cause dizziness and changes to your vision. Make sure you know how it affects you before driving or using machinery.
For a full list of warnings and side effects, please see the Patient Information Leaflet.
Silandyl contains sildenafil, so it’s not necessarily a better treatment than a tablet, just an alternative way to take sildenafil.
Both Silandyl and sildenafil tablets work in the same amount of time, which is around 30–60 minutes. Although the film dissolves quickly, it doesn’t mean the medication will start working faster.
Find out more about how long sildenafil takes to work and how long it lasts here.
Silandyl contains lemon and grapefruit flavourings, as well as the sweetener sucralose. This gives it a flavoured taste, rather than the naturally bitter taste of sildenafil citrate.
No, Silandyl doesn’t contain lactose, so it may be suitable if you’re lactose intolerant.
Some ED medications, including Viagra, Viagra Connect, Cialis and Cialis Together contain lactose, along with some generic sildenafil and tadalafil tablets, so check the ingredients or tell your pharmacist if you need to avoid it.
Silandyl may suit you if you want an ED treatment containing sildenafil but don’t want to swallow a tablet. Because it can be swallowed without water, it may offer more flexibility over where you take your treatment.
No, Silandyl is designed to be taken without water. Simply place the film directly on your tongue using dry fingers and allow it to dissolve before swallowing. However, you can take it with water if you prefer.
Take Silandyl around one hour before you plan to have sex. It normally takes between 30 and 60 minutes to work, although this can vary from person to person and may take longer if you’ve had a heavy meal.
You'll still need to be sexually stimulated for Silandyl to help you get an erection.
Yes, you can take Silandyl with or without food. However, taking it with or after a big meal may mean it takes longer to start working.
Yes, but it’s best to avoid drinking excessive amounts of alcohol before taking Silandyl. Alcohol may temporarily make it more difficult to get an erection, which may prevent you from getting the maximum benefit from your treatment.
Silandyl is for adult men with ED and isn't suitable for everyone. You shouldn't take it if you:
Speak to your pharmacist before taking Silandyl if you're unsure whether it's suitable for you.
Yes. Silandyl is a prescription-only medication, so you’ll need a pharmacist to make sure it’s safe and suitable for you. Following a consultation, you can get a private prescription from online pharmacies including The Independent Pharmacy.
No Silandyl isn’t available on the NHS, although generic sildenafil tablets are. You can buy Silandyl with a private prescription from regulated pharmacies, such as The Independent Pharmacy following a free consultation.
Silandyl contains the well-established ED medicine sildenafil with an easy-to-take dissolvable film. Available in a choice of strengths, and with no water needed, it offers a convenient alternative if you’d prefer not to take sildenafil tablets.
If you have questions or need any advice, our expert clinical team is on hand to help.
As a UK-based pharmacy, we follow the same strict regulatory standards as any physical pharmacy. Our expert clinical team and services are overseen by multiple regulatory bodies to ensure your care is always safe, secure and confidential.








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