Viridal Duo is a prescription treatment containing alprostadil, a medicine used to help adult men achieve and maintain an erection when experiencing erectile dysfunction (ED). Unlike oral treatments such as sildenafil or tadalafil, Viridal Duo is administered by injection directly into the erectile tissue of the penis.
Cured Pharmacy lists Viridal Duo as an intracavernosal alprostadil treatment available in 10, 20 and 40 microgram strengths. The product is supplied as a dual-chamber cartridge containing alprostadil powder and a solvent that are mixed before use.
What Is Viridal Duo?
Viridal Duo contains alprostadil, a synthetic form of prostaglandin E1. It works by relaxing smooth muscle and widening blood vessels in the penis, increasing local blood flow and helping produce an erection.
The official UK patient information leaflet states that Viridal Duo is used in adult men to help obtain and maintain an erection. It can also be used by a doctor as part of an assessment of erectile dysfunction.
Viridal Duo is a prescription-only medicine, so it should only be used following appropriate medical assessment and instruction. https://curedpharmacy.com/products/viridal-alprostadil-duo
How Does Viridal Duo Work?
Alprostadil works directly on the blood vessels and smooth muscle within the penis. By increasing local blood flow, it can produce an erection without relying on the same mechanism used by oral PDE5 inhibitors.
According to Cured Pharmacy, an erection may occur within approximately 5–20 minutes after the injection, although individual responses can vary.
Sexual stimulation is not necessarily required for the medicine to produce its physical effect, although individual experiences may differ.
What Makes Viridal Duo Different?
One of the distinctive features of Viridal Duo is its dual-chamber cartridge.
One chamber contains the alprostadil powder, while the second contains a sodium chloride solution. The two components are mixed to create the injection solution immediately before administration.
This design helps keep the components separated until the medicine is ready to be used.
Cured Pharmacy describes the product as being supplied with an auto-injector system designed to help provide consistent administration.
What Strengths Are Available?
Viridal Duo is available in three strengths:
- 10 micrograms/ml
- 20 micrograms/ml
- 40 micrograms/ml
The appropriate strength and dose depend on the individual patient and should be determined by a healthcare professional.
The dose should not be changed independently. Your doctor or specialist nurse should determine the appropriate dose and, where necessary, adjust it under medical supervision.
How Is Viridal Duo Used?
Viridal Duo is an intracavernosal injection, meaning the medicine is injected into the erectile tissue of the penis.
Because incorrect injection technique can cause injury or complications, patients should receive proper instruction from a healthcare professional before attempting to administer Viridal Duo themselves.
Cured Pharmacy advises that a doctor or specialist nurse should demonstrate the correct technique before home use.
The medicine should be prepared and administered exactly according to the instructions provided with the product and by your healthcare professional.
Do not attempt to improvise the injection technique or use Viridal Duo without being properly trained.
How Quickly Does Viridal Duo Work?
Viridal Duo can produce an erection relatively quickly. Cured Pharmacy states that the medicine can be effective within approximately 5–20 minutes of injection.
The exact response varies from person to person and can depend on the prescribed dose and individual health circumstances.
If the medicine does not appear to work as expected, do not automatically take an additional dose. Contact your prescriber for advice.
Who May Be Prescribed Viridal Duo?
Viridal Duo is intended for adult men with erectile dysfunction.
It may be considered when oral ED treatments are unsuitable, contraindicated or have not provided adequate results. Cured Pharmacy specifically describes it as an option for men who cannot use oral PDE5 inhibitors.
However, suitability must be assessed individually.
Your healthcare professional may consider your:
- Cardiovascular health
- Medical history
- Current medicines
- Previous ED treatments
- Penile anatomy
- Risk factors for prolonged erections
- Blood-clotting status
Who Should Not Use Viridal Duo?
Viridal Duo is not suitable for everyone.
The official patient information states that it should not be used by people who are allergic to alprostadil or its ingredients, or by men with certain conditions associated with an increased risk of prolonged erections. These include sickle-cell disease, leukaemia and multiple myeloma. It should also not be used by men with a penile implant.
Certain penile anatomical abnormalities may also require particular caution or specialist assessment.
Always provide your prescriber with complete and accurate information about your health before treatment.
Possible Side Effects of Viridal Duo
Like all medicines, Viridal Duo can cause side effects.
Because the medicine is injected directly into the penis, some side effects can occur at the injection site. Cured Pharmacy lists penile pain and bruising among possible effects. Changes in blood pressure and other reactions can also occur.
The official patient leaflet provides additional information about possible adverse reactions.
If side effects are severe, persistent or concerning, contact your doctor or pharmacist.
Priapism: An Important Warning
One of the most important risks associated with intracavernosal alprostadil is priapism, an erection that lasts for an abnormally long period and does not go away.
An erection lasting four hours or longer requires urgent medical attention because prolonged erections can damage penile tissue.
Do not wait for the erection to resolve on its own if it reaches four hours. Seek emergency medical care.
This is one reason why the correct dose and proper training are particularly important when using injectable ED medicines.
Can Viridal Duo Interact With Other Medicines?
Yes. Tell your doctor or pharmacist about every medicine you currently use before starting Viridal Duo.
Particular attention may be required if you take:
- Blood-pressure medicines
- Anticoagulants such as warfarin
- Other erectile dysfunction treatments
- Other medicines that affect blood vessels
Cured Pharmacy warns that combining Viridal Duo with other vasoactive ED treatments without specialist advice can increase the risk of adverse effects, including priapism.
Never combine ED treatments unless your healthcare professional has specifically advised you to do so.
Viridal Duo and Pregnancy
Alprostadil can have implications when a sexual partner is pregnant.
Cured Pharmacy advises the use of a condom during intercourse with a pregnant partner because of potential effects of alprostadil on fetal circulation.
If your partner is pregnant or could become pregnant, discuss the appropriate precautions with your doctor or pharmacist.
How Should Viridal Duo Be Stored?
Proper storage is important for maintaining medicine quality.
Cured Pharmacy states that Viridal Duo should be stored below 25°C, protected from direct light and not frozen. Once the cartridge has been mixed, the solution should be used immediately and any unused solution discarded.
Always follow the storage instructions supplied with your medicine.
Used needles must also be disposed of safely in an appropriate sharps container rather than being placed directly into ordinary household waste.
Viridal Duo vs Oral ED Treatments
Viridal Duo differs from common oral ED medicines such as sildenafil and tadalafil.
| Feature | Viridal Duo | Oral PDE5 Inhibitors |
| Active ingredient | Alprostadil | Varies |
| Administration | Intracavernosal injection | Oral tablet |
| Main action | Directly increases local penile blood flow | Supports the natural erectile response |
| Onset | Approximately 5–20 minutes according to Cured Pharmacy | Depends on the medicine |
| Prescription medicine | Yes | Many are prescription medicines |
| Administration training | Required | Generally not required |
Neither approach is automatically best for every patient. The appropriate treatment depends on individual medical circumstances and previous treatment response.
Buying Viridal Duo Online
If you are considering buying Viridal Duo online, make sure the medicine comes from a legitimate pharmacy and that an appropriate clinical assessment has been completed.
The official UK medicines information classifies Viridal Duo as a prescription-only medicine.
Avoid websites that offer injectable ED medicines without asking about your medical history or providing professional oversight.
A legitimate pharmacy should provide appropriate prescribing arrangements and clear information about how the medicine should be used.
Why Medical Training Matters
Injectable ED treatment is different from taking an oral tablet. The injection must be administered correctly to reduce the risk of pain, bruising, bleeding, tissue damage and other complications.
Patients should therefore receive appropriate training before attempting self-administration.
If you are unsure about the injection technique, contact your doctor, specialist nurse or pharmacist rather than attempting to guess how the medicine should be used.
Final Thoughts on Viridal Duo
Viridal Duo is an established alprostadil treatment for erectile dysfunction in adult men. It works by increasing blood flow directly within the penis and is supplied in a dual-chamber cartridge that combines alprostadil powder with a solvent before injection.
It can be an option for men for whom oral ED treatments are unsuitable or ineffective, but it requires appropriate prescribing, dosing and training.
If you are considering Viridal Duo, discuss your medical history and current medicines with a qualified healthcare professional. Use only the prescribed dose, follow the administration instructions carefully and seek urgent medical attention for an erection lasting four hours or longer.
Medical disclaimer: This article is for general educational purposes and does not replace medical advice, diagnosis or treatment. Viridal Duo is a prescription-only medicine and is not suitable for everyone. Always follow the instructions provided by your prescriber, pharmacist or specialist nurse.
