Silvitra (Sildenafil Citrate 100 mg + Vardenafil 20 mg) — Patient Information

Silvitra is an oral medicine that combines two active ingredients used to treat erectile dysfunction (ED): sildenafil citrate 100 mg and vardenafil 20 mg. It works by improving blood flow to the penis during sexual stimulation, helping many men achieve and maintain an erection.

This page explains how Silvitra works, how it is typically used, what to expect, and important safety information. It is written for patients in Australia and focuses on practical, patient-friendly guidance.

Basic product information

Important: The combination strength (100 mg sildenafil plus 20 mg vardenafil) is relatively high. Always follow the dosing advice provided with your specific product and talk to a clinician if you have questions—particularly if you take other medicines or have heart/blood-pressure conditions.

How Silvitra works (mechanism of action)

In normal sexual arousal, nitric oxide (NO) is released in the penis, which increases levels of cyclic guanosine monophosphate (cGMP). cGMP helps relax smooth muscle in penile blood vessels, allowing increased blood flow and an erection.

Sildenafil and vardenafil are both PDE5 inhibitors. They help by blocking the enzyme PDE5, which normally breaks down cGMP. By inhibiting PDE5, they help maintain higher cGMP levels, promoting blood flow to the penis during sexual stimulation.

• Requires sexual stimulation: Silvitra helps erections happen more easily, but does not automatically cause an erection.
• Improves erection quality: Many men experience better ability to achieve and maintain an erection sufficient for sex.
• Not a libido medicine: It does not usually increase sexual desire.

Pharmacokinetics (absorption, onset, metabolism, and duration)

The exact timing can vary between individuals depending on age, body weight, liver/kidney function, and whether you take it with food. Below is a patient-friendly overview of what generally happens after dosing.

Absorption and onset

• Sildenafil: Typically begins to work within about 30–60 minutes for many people. Peak effect usually occurs within a few hours.
• Vardenafil: Often starts acting within about 30–60 minutes, with peak effect occurring somewhat earlier than sildenafil in many cases.

Duration of effect

ED treatments can have a “window” of effectiveness. Many patients notice improved erectile function for several hours. The combined product may provide a broader practical window compared with single-agent therapy, but individual response varies.

Metabolism and elimination

Both sildenafil and vardenafil are primarily metabolised in the liver (majorly via CYP3A4 pathways) and eliminated through the body’s normal processes (largely via the gut and partly via urine). Medicines that affect liver enzymes can alter how Silvitra works and how long it lasts.

Kidney/liver impairment: If you have moderate to severe kidney disease or liver disease, the risk of side effects may increase. Clinicians may adjust dosing or recommend alternatives.

What Silvitra is used for (indications)

Silvitra is indicated for the treatment of erectile dysfunction (ED) in adult men. ED is commonly defined as persistent difficulty achieving or maintaining an erection sufficient for satisfactory sexual activity.

Silvitra is intended to be used in men who can engage in sexual activity and who have an appropriate medical status for PDE5 inhibition.

Typical use and timing

How to take it

• Take the tablet by mouth with water.
• It is most useful when taken before sexual activity, with time for absorption and onset.
• Only take it when needed; do not take more frequently than advised.

Timing (when it works)

A practical approach for many patients is to take Silvitra about 30 to 60 minutes before sex. Some men may need closer to 60 minutes, while others notice effects sooner or later.

If you experience a slower onset (for example, due to a heavy meal), consider taking it earlier on your next occasion (within safe limits and as instructed).

Missed dose

Silvitra is taken “as needed” for ED rather than on a strict schedule. If you miss your planned time, simply wait until the next appropriate time. Do not double up.

Food interactions (including meals and high-fat foods)

Food can affect how quickly PDE5 inhibitors are absorbed. In general, taking Silvitra with a heavy or high-fat meal may delay onset.

• Heavy meals: May delay effect by up to an hour or more in some people.
• High-fat foods: Can slow absorption; consider taking on a more empty stomach or with a lighter meal.
• Consistency matters: If you plan to use Silvitra regularly for testing your personal timing, keep meal patterns similar.

If you take it with food and notice delayed results, try taking it with less food next time—only if that is safe for you and within dosing advice.

Alcohol guidance

Alcohol can affect erections and blood pressure. Moderate alcohol may increase the difficulty of achieving an erection, and heavier drinking can worsen ED. Alcohol can also increase the likelihood of side effects such as dizziness and flushing.

• Best practice: Avoid heavy drinking before using Silvitra.
• Start low: If you drink, keep intake moderate and see how you feel.
• Be cautious: If you feel light-headed, sit or lie down and seek advice if symptoms persist.

If you have heart disease, low blood pressure, or take medicines that affect circulation, it’s especially important to discuss alcohol and PDE5 inhibitor use with a clinician.

Medicine interactions (including nitrates and blood pressure medicines)

Absolute avoidance: nitrates and “nitric oxide” donors

PDE5 inhibitors can dangerously lower blood pressure when combined with medicines that contain nitrates (for angina/chest pain) or nitric oxide donors.

• Do not use Silvitra if you take nitrates (e.g., glyceryl trinitrate) or similar drugs.
• Do not use if you take riociguat (a medicine for pulmonary hypertension).

This combination can lead to severe hypotension (dangerously low blood pressure).

Alpha-blockers (for prostate symptoms or blood pressure)

Some men take alpha-blockers such as tamsulosin, alfuzosin, doxazosin, or others. These can also lower blood pressure. Using them with PDE5 inhibitors may increase the risk of dizziness or fainting—especially during the first dose or dose changes.

• Discuss timing and safe dosing with a clinician if you use alpha-blockers.
• Do not start or stop these medicines without medical advice.

Strong CYP3A4 inhibitors (can raise drug levels)

Sildenafil and vardenafil are metabolised by pathways involving CYP3A4. Drugs that strongly inhibit CYP3A4 can raise blood levels of Silvitra, increasing risk of side effects such as headache, flushing, low blood pressure, and visual disturbances.

Examples of CYP3A4 inhibitors may include some medicines used to treat fungal infections and certain HIV/Hepatitis treatments. Your pharmacist or clinician can check your exact medicine list.

Other PDE5 inhibitors and “double dosing”

Silvitra already contains two PDE5 inhibitors. Avoid taking additional ED medicines at the same time.

Blood pressure medicines and antihypertensives

PDE5 inhibitors can have additive blood-pressure-lowering effects when combined with antihypertensive medicines. This may cause dizziness or light-headedness in some men.

Medications that increase bleeding risk

Silvitra is not specifically known for blood thinning, but if you take anticoagulants or antiplatelets, always consider your overall health and discuss safety if you notice unusual bleeding or symptoms.

Dose and how much to take

Silvitra is commonly supplied as tablets containing sildenafil citrate 100 mg plus vardenafil 20 mg. Because this is a combination product with relatively high doses, it is important to follow the dosing instructions provided with your product.

Typical dosing (general guidance)

• Start as directed: Many men are advised to begin with the lowest effective approach recommended by their clinician or product guidance.
• Frequency: Use only as needed, not more often than recommended.
• Do not exceed: Do not take more tablets than directed to improve effectiveness; this increases side-effect risk.

If you are new to PDE5 inhibitors, you may need individual dose adjustment. Factors that can affect dosing include age, kidney/liver function, and interacting medications.

Seek urgent help immediately if you experience chest pain, fainting, or severe dizziness after taking Silvitra.

Safety profile: side effects and who should be careful

Common side effects

Many people tolerate PDE5 inhibitors well, but side effects can occur. Commonly reported effects include:

• Headache
• Flushing (warmth/redness)
• Indigestion or nausea
• Dizziness
• Nasal congestion
• Back pain or muscle aches (less commonly)

Less common but serious side effects

• Vision changes (e.g., sudden decrease in vision, blurred vision)
• Hearing changes (sudden hearing loss or ringing)
• Chest pain or signs of heart strain
• Prolonged erection (priapism): an erection lasting longer than typically expected for sexual activity
• Severe dizziness or fainting (possible low blood pressure)

If you experience priapism or sudden vision/hearing loss, seek urgent medical attention. These are medical emergencies.

Who should avoid or be extra cautious

• Men taking nitrates or riociguat
• Men with certain heart conditions where sexual activity is unsafe without medical assessment
• Men with very low blood pressure or those prone to fainting
• Men with severe liver impairment
• Men taking medicines that strongly interact via liver enzyme pathways

If you have a history of stroke, heart attack, uncontrolled high blood pressure, or significant heart rhythm problems, talk to a clinician before using Silvitra.

Practical use tips (help your first dose succeed)

• Plan timing: Take about 30–60 minutes before sex. If you ate a heavy meal, allow more time.
• Choose a lighter meal: A less heavy meal may improve onset.
• Limit alcohol: Keep alcohol to a minimum to reduce dizziness and erection difficulties.
• Give it a fair try: Many men need more than one occasion to find the right timing and response. However, do not repeatedly increase dosing beyond instructions.
• Sexual stimulation is required: Ensure adequate arousal; PDE5 inhibitors are not automatic triggers.
• Hydration and rest: Dehydration and fatigue can worsen performance and side effects.
• Review your medicines: Check interactions with your pharmacist—especially for nitrates, alpha-blockers, and strong CYP3A4 inhibitors.

Alternative options

ED is common and treatable. Alternatives depend on medical history, preferences, and how your body responds to PDE5 inhibitors.

Other PDE5 inhibitors (single ingredient)

• Sildenafil alone
• Tadalafil (different duration and dosing style for some men)
• Vardenafil alone
• Avanafil (where available)

Non-medicine options

• Lifestyle changes: improving sleep, reducing smoking, moderating alcohol, and maintaining healthy weight
• Psychosexual support: stress, anxiety, and relationship factors can play a major role
• Devices: vacuum erection devices (VED) in appropriate settings
• Penile injections or suppositories: for men who don’t respond to tablets

If Silvitra doesn’t work well or causes troublesome side effects, a clinician may recommend switching to a different PDE5 inhibitor, adjusting timing, or exploring other options.

Market and legal context in Australia (general information)

In Australia, access to erectile dysfunction treatments can involve prescription pathways depending on the specific product and strength. Medicines must be supplied through lawful and appropriate channels, and online purchasing should be from reputable providers that follow Australian requirements.

Always ensure your chosen pharmacy or supplier operates legally and provides genuine products. Be cautious of products that do not clearly describe the active ingredients, strength, batch details, and shipping practices.

For up-to-date information on Australian medicine regulation and safe supply, you may check official Australian health and regulatory resources or speak with a pharmacist.

Recent guidance and best-practice reminders

Safety guidance for PDE5 inhibitors commonly emphasises:

• Avoiding dangerous interactions (especially nitrates and riociguat).
• Starting carefully in men with cardiovascular risk factors.
• Attention to side effects, including sudden vision or hearing changes and prolonged erections.
• Checking current medicine lists for drug-drug interactions.

Because Silvitra is a combination of two PDE5 inhibitors, the importance of interaction checking is particularly relevant.

Delivery and availability (Australia)

Availability and delivery options vary depending on the supplier and product category. When ordering online in Australia, choose a pharmacy that:

• Provides clear product details (ingredients, strengths, dosage form)
• Clearly explains dispatch times and shipping regions
• Offers secure payment options and transparent returns/refund policies
• Includes packaging and storage guidance on the product page

Tip: Check estimated delivery timeframes at checkout and ensure you order early enough to allow for postal transit.

FAQ — Silvitra (Sildenafil Citrate 100 mg + Vardenafil 20 mg)

1) How quickly does Silvitra work?

Many people notice effects within about 30–60 minutes. A heavy or high-fat meal may delay onset. If it doesn’t seem to work, avoid increasing the dose beyond instructions—review timing, food intake, and interactions instead.

2) How long does Silvitra last?

For many men, the practical window is several hours. Actual duration varies based on individual metabolism, meal timing, and other medicines.

3) Can I take Silvitra every day?

Silvitra is typically used as needed. Frequency should follow the guidance supplied with your specific product and clinician advice. Do not take it more often than recommended.

4) What if I took it with food and it didn’t work?

Food—especially heavy/high-fat meals—can delay or reduce the speed of onset. On your next occasion, try a lighter meal and allow adequate time. Also review alcohol intake and ensure you had adequate sexual stimulation.

5) Can I take Silvitra with nitrates for chest pain?

No. Do not combine PDE5 inhibitors with nitrates or riociguat. This combination can cause dangerous blood pressure drops. If you need treatment for chest pain, seek medical guidance urgently.

6) Is it safe with alpha-blockers (for prostate or blood pressure)?

It may be possible in some circumstances, but the combination can increase the risk of dizziness or fainting. Discuss dosing/timing with a clinician or pharmacist before using Silvitra.

7) Can I drink alcohol?

You can, but it’s best to keep alcohol intake moderate or avoid heavy drinking. Alcohol can worsen erections and may increase side effects like dizziness.

8) What are the most common side effects?

Common side effects include headache, flushing, nasal congestion, dizziness, and indigestion.

9) When should I seek urgent medical help?

Seek urgent help if you experience:

• Prolonged erection (priapism)
• Sudden vision or hearing changes
• Fainting, severe dizziness, or symptoms suggesting very low blood pressure
• Chest pain or symptoms that concern you

10) What should I do if Silvitra causes dizziness?

Stop sexual activity, sit or lie down, and avoid driving until you feel well. If dizziness is severe or recurrent, seek medical advice and review interacting medications.

11) Are there lifestyle steps that improve ED?

Yes. Improving sleep, reducing smoking, limiting alcohol, exercising regularly, and managing stress can improve erectile function and overall cardiovascular health.

12) If Silvitra doesn’t work, what are my next options?

Options include trying a different PDE5 inhibitor strategy, adjusting timing or food/alcohol factors, addressing anxiety or relationship stress, or discussing non-tablet treatments such as devices or clinical therapies.

Storage and handling

Keep tablets in their original packaging and store at room temperature unless your product label says otherwise. Keep out of sight and reach of children. Do not use after the expiry date.

Final reminder: Silvitra contains two PDE5 inhibitors. It is essential to check medicine interactions—especially nitrates and riociguat— and to seek medical advice if you have significant heart or blood-pressure conditions.