

Viridal Duo 10mcg Injections
- Effective within 5–15 minutes
- Acts directly at the injection site
- Suitable when tablets are not appropriate
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Viridal Duo 10mcg Injections - Available Online
If tablets haven’t worked for you, or you can’t take oral medications for erectile dysfunction (ED), Viridal Duo injections may be an option. They are injected directly into the penis and usually work within minutes by increasing blood flow. This helps you get and maintain an erection. Complete a quick online consultation to see whether this treatment is suitable for you.
Who Is Viridal Duo 10mcg Injections Suitable For?
Viridal Duo 10mcg Injection Summary
Viridal Duo Information
What Are Viridal Duo Injections?
Viridal Duo is a prescription erectile dysfunction treatment that you inject directly into your penis using a special injector. It contains the active ingredient alprostadil, which relaxes the blood vessels in your penis, allowing more blood to flow there. This makes it easier to develop and maintain an erection. Your prescriber may recommend it when tablets are not suitable or have not worked for you.
Can I Use Viridal Duo?
Viridal Duo may be suitable if you have been diagnosed with erectile dysfunction and oral medications have not worked. However, there are certain conditions that mean you can’t use it, such as some blood disorders, penile conditions, or if you’ve been advised not to have sex for medical reasons.
How Does Viridal Duo Work?
Viridal Duo works by widening the blood vessels and increasing blood flow to your penis. This helps you get and maintain an erection. You’ll usually develop an erection within five to 15 minutes, and it typically lasts about an hour.
Alternatives to Viridal Duo
If Viridal Duo is unsuitable for you, other options might be more appropriate. These include:
- Tablet treatments, such as sildenafil or tadalafil
- Other injectable erectile dysfunction treatments
- Vacuum erectile dysfunction (VED) pumps
Completing an online consultation allows a prescriber to help you choose the most suitable option for you.
How To Use Viridal Duo
Your starter pack contains everything that you need to inject yourself twice. Before you use Viridal Duo at home, your prescriber will teach you how to prepare and inject it. It is injected directly into the side of your penis. Most people need between 10mcg and 20mcg per injection, but your prescriber will advise you on the correct dose. Never use more than 40mcg in a single injection, and don’t use Viridal Duo more than two to three times a week, leaving at least 24 hours between each dose.
Ingredients
Active ingredient:
- Alprostadil: 10mcg per millilitre
Other ingredients:
- Lactose monohydrate
- Alfadex
- Sodium chloride
- Water for injection
For the most up-to-date list of ingredients, please check the Patient Information Leaflet inside the box.
Side Effects
Like all medicines, Viridal Duo can cause side effects, although not everyone gets them.
Side effects may include:
- Pain in the penis
- Burning or discomfort at the injection site
- Bruising or bleeding at the site of the injection
- Prolonged erection
- More frequent erections
- Headache
- Fungal infection
- Common cold
Long-term use can cause:
- Lumps at the site of injection or elsewhere in your penis
- A bend or kink in your penis
Warnings
An erection lasting longer than four hours is a medical emergency. If this occurs, seek immediate medical attention.
Viridal Duo doesn’t protect against sexually transmitted diseases (STDs). You may experience a small amount of bleeding at the injection site, so you need to use a condom to avoid STIs like chlamydia, gonorrhoea, herpes simplex virus, viral hepatitis, HIV, genital warts or syphilis.
For all warnings and side effects, please see the Patient Information Leaflet.
Viridal Duo FAQs
Do Viridal Duo injections hurt?
Viridal Duo injections may cause some pain or discomfort. Around one in ten people experience a small amount of pain in their penis. You may also feel a burning sensation during the injection, but this usually resolves quickly. Using the correct injection technique and varying the injection site can help reduce discomfort.
How much does Viridal Duo cost?
How much Viridal Duo costs depends on the dose your pharmacist prescribes and how many cartridges you receive. You’ll always be able to see the full price before ordering, once our UK-based prescriber confirms that the treatment is suitable for you.
What are the best Viridal Duo alternatives?
If Viridal Duo is not suitable for you, other treatments may be available. You may be recommended tablet treatments such as sildenafil or tadalafil, other injectable options, or vacuum erectile dysfunction pumps. Your consultation will help a prescriber determine the most appropriate option for you.
Is Viridal the same as Caverject?
Viridal Duo and Caverject both contain the same active ingredient, alprostadil. They work in the same way by increasing blood flow to your penis, but each uses a different injection system.
Viridal Duo vs Caverject: which is best?
Neither treatment is better for everyone. Viridal Duo is available in strengths up to 40mcg, whereas Caverject only goes up to 20mcg, so two injections would be required to achieve the same dose. What’s best for you also depends on personal preference, but a prescriber can advise which treatment you should use.
Are injections better than pills for erectile dysfunction?
Injections can be more effective than pills for some people with erectile dysfunction, but this is not always the case. They may be particularly helpful if you’ve found that tablets haven’t worked for you. Viridal Duo works locally because it is injected directly into your penis, making it suitable for people who cannot take oral erectile dysfunction treatments for medical reasons.
Where is the best place to inject Viridal Duo?
You should inject Viridal Duo into the side of your penis, as instructed by your prescriber and illustrated in the Patient Information Leaflet. Always avoid the top and underside of your penis. It’s also important to alternate sides with each injection to reduce side effects. If you’re unsure, contact your prescriber.
How long does it take for Viridal Duo to work?
It usually takes between five and 15 minutes after injecting to develop an erection. If this doesn’t happen, don’t take another dose. Instead, discuss it with your prescriber, as your dose may need adjusting.
How long does Viridal Duo last?
Your erection should last for around one hour. If it lasts for between two and four hours, discuss this with your prescriber. They may need to adjust your dose. If it lasts for more than four hours, seek medical attention immediately.
What should I avoid while taking Viridal Duo?
You shouldn’t use any other erectile dysfunction medicines at the same time as Viridal Duo, unless advised to do so by your prescriber. Using more than one treatment together can increase the risk of side effects, including a prolonged erection.
What foods should you avoid with Viridal Duo?
You don’t need to avoid any specific foods while using Viridal Duo. Unlike some tablet erectile dysfunction treatments, grapefruit does not affect the injections, which are administered locally. Eating heavy meals also doesn’t affect how the injection works, unlike some oral medications.
Is it OK to drink alcohol with Viridal Duo?
Small amounts of alcohol are usually safe, but alcohol can increase side effects such as dizziness or low blood pressure. Both Viridal Duo and alcohol widen blood vessels, which increases your risk of developing hypotension (low blood pressure). Taken together, this could cause very low blood pressure, so it’s best to avoid alcohol where possible.
Can I buy Viridal Duo online?
You can request a prescription for Viridal Duo online from any regulated UK pharmacy by completing an online consultation. A UK-registered prescriber will review your information to ensure that Viridal Duo is safe and suitable for you.
Related Treatments
Visit our Erectile Dysfunction (ED) page for treatments, advice and FAQs.
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