Silvitra (Sildenafil Citrate 100 mg + Vardenafil 20 mg) — Patient Information (Australia)
Silvitra is a dual-action medicine used to treat erectile dysfunction (ED) in adult men. It combines: sildenafil citrate 100 mg and vardenafil 20 mg in a single tablet.
This page explains what Silvitra does, how it works, how to take it safely, common interactions (including alcohol and food), and practical tips for best results. It also includes information relevant to the Australian market.
Quick facts
- Active ingredients: Sildenafil citrate (100 mg) + Vardenafil (20 mg)
- What it helps: Erection difficulties (erectile dysfunction)
- How it works: Improves blood flow to the penis during sexual stimulation
- When to take it: Typically 30–60 minutes before sex (varies by person)
- Common cautions: Do not use with nitrates or “poppers” (e.g., amyl nitrite)
- Alcohol: May reduce effectiveness and increase dizziness/low blood pressure risk
Basic product information
| Category | Details |
|---|---|
| Medicine name | Silvitra |
| Composition | Sildenafil citrate 100 mg + Vardenafil 20 mg |
| Dosage form | Oral tablet |
| Primary use | Erectile dysfunction |
| How it is used | Taken before planned sexual activity |
Note: Strengths and formulations can vary between products. Always check the exact label on your specific pack.
How Silvitra works (mechanism of action)
Erectile function depends on relaxation of smooth muscle in the penis and increased blood flow during sexual arousal. Silvitra contains two medicines from the same therapeutic class: phosphodiesterase type 5 (PDE5) inhibitors.
PDE5 inhibitors help by:
- Increasing the effect of nitric oxide released during sexual stimulation
- Enhancing levels of cyclic GMP inside penile tissue
- Relaxing blood vessels and supporting increased blood flow
- Helping achieve and maintain an erection when sexual stimulation occurs
Importantly, Silvitra does not automatically cause an erection without sexual stimulation.
Pharmacokinetics (how the body processes it)
“Pharmacokinetics” describes how your body absorbs, distributes, metabolises, and eliminates a medicine. Because Silvitra combines two PDE5 inhibitors, you can think of its effects as reflecting the behaviour of both sildenafil and vardenafil in the body.
- Absorption: After an oral dose, the medicine is absorbed through the gastrointestinal tract. Onset can vary with individual metabolism and whether the stomach is empty.
- Time to effect: Many people experience effects within 30–60 minutes. The peak benefit may occur later, depending on food intake and individual response.
- Distribution: PDE5 inhibitors circulate through the bloodstream and act in target tissues (including the penis).
- Metabolism: Both drugs are metabolised primarily in the liver by enzymes such as CYP3A4 (and other pathways). Drug interactions can therefore significantly affect levels.
- Elimination: Metabolites are cleared mainly via the liver and kidneys. Kidney or liver impairment can change exposure.
Your clinician and the product information on your specific pack will guide safe use for your circumstances.
Typical use and intended indications
Silvitra is used for the treatment of erectile dysfunction (ED)—the inability to achieve or maintain an erection sufficient for satisfactory sexual performance.
It is indicated for adult men who are experiencing ED and do not have contraindications (such as nitrate use). ED can have multiple causes (vascular, psychological, medication-related, hormonal, or neurologic), and addressing underlying contributors is often helpful.
Who should use caution (important safety notes)
Silvitra may not be suitable for everyone. Talk to a healthcare professional if you have any of the following:
- Heart or blood pressure conditions (including recent cardiovascular events)
- Low blood pressure or a tendency to feel faint
- Severe liver disease
- Severe kidney disease
- History of non-arteritic anterior ischaemic optic neuropathy (NAION)
- Use of alpha-blockers for prostate symptoms or blood pressure
- Use of CYP3A4 inhibitors (some antifungals, antibiotics, HIV medicines)
If you experience sudden vision or hearing changes, chest pain, severe dizziness, or an erection lasting longer than recommended, seek urgent medical advice.
Dosing: how much and how often
Follow the directions on the pack and any healthcare advice you’ve received. Dosing can differ depending on your age, kidney/liver function, other medicines, and risk factors.
Typical dosing approach (general guidance)
- Starting dose: Often taken as a single tablet strength prior to sexual activity.
- Frequency: Most men do not need frequent dosing; use the lowest effective amount and avoid taking more often than advised.
- One day rule: Do not exceed the maximum frequency stated on the product label/consumer medicines information.
Because Silvitra contains two PDE5 inhibitors at relatively high combined strength, clinicians commonly advise careful dose selection and monitoring. If you are unsure, check your pack instructions or ask a healthcare professional.
Timing: when to take Silvitra
The best timing can help you get consistent results. For many people:
- Take about 30–60 minutes before sex.
- If you don’t get the expected effect, timing may be adjusted (within safe limits) rather than increasing dose.
- Allow enough time for arousal—these medicines support erection by enhancing blood flow during stimulation.
If you’ve eaten a heavy meal, onset may be slower (see “Food interactions” below).
Food interactions (including high-fat meals)
Food can influence how quickly PDE5 inhibitors work.
- High-fat meals: May slow stomach emptying and delay onset.
- Heavy meals: Can reduce the speed of effect and sometimes overall response.
- Fasting/empty stomach: May lead to earlier onset for some people.
Practical tip: For more predictable timing, consider taking Silvitra on an emptier stomach or after a light meal, especially if you’re planning sex soon after eating.
Alcohol interactions
Alcohol can affect both sexual performance and blood pressure. Combining alcohol with PDE5 inhibitors may increase the likelihood of:
- Dizziness or light-headedness
- Low blood pressure symptoms (e.g., faintness)
- Reduced erectile quality due to alcohol’s effects on sexual arousal
If you choose to drink, keep it moderate. Avoid binge drinking and ensure you are well hydrated. Stand up slowly if you feel light-headed.
Medicine interactions (including nitrates and other key groups)
Interactions can be serious with PDE5 inhibitors. If you take any regular medicines, review them carefully with a healthcare professional or pharmacist.
Absolute contraindication: nitrates and “poppers”
Do not use Silvitra if you take medicines containing nitrates (for angina/heart pain), or if you use recreational nitrite inhalants such as “poppers” (e.g., amyl nitrite). This combination can cause a dangerous drop in blood pressure.
Other important interaction groups
- Alpha-blockers (for prostate symptoms or blood pressure): may increase risk of low blood pressure, especially when starting or adjusting doses.
- CYP3A4 inhibitors (can raise PDE5 inhibitor levels): some antifungals (e.g., ketoconazole/itraconazole), certain antibiotics (macrolides), HIV medicines, and others may increase side effects.
- CYP3A4 inducers (can lower effectiveness): certain anti-seizure medicines (e.g., carbamazepine, phenytoin) and rifampicin may reduce effect.
- Other ED medicines or additional PDE5 inhibitors: using multiple PDE5 inhibitors together can increase risk of adverse effects.
- Riociguat (for pulmonary hypertension): combination can cause significant blood pressure lowering.
Always bring an up-to-date list of your medicines (including supplements) when seeking advice.
Safety profile: common side effects and warning signs
Like all medicines, Silvitra can cause side effects. Many are mild and temporary, but some may be serious.
Common side effects
- Headache
- Flushing (warmth/redness)
- Indigestion or stomach discomfort
- Nasal congestion
- Dizziness
- Visual disturbances (temporary, such as altered colour perception or sensitivity to light)
Less common but important warnings
- Priapism (an erection lasting longer than recommended): seek urgent medical attention to prevent tissue damage.
- Sudden vision loss or significant eye pain: requires emergency evaluation.
- Sudden hearing changes (rare): seek prompt medical advice.
- Chest pain, severe dizziness, fainting: stop use and seek urgent care.
Who should avoid or be particularly cautious
- Men with cardiovascular conditions where sexual activity is not advised
- Anyone using nitrates
- Those at higher risk of hypotension or with complex medication regimens
Practical use tips for better results
- Plan ahead: take it at the right time before sexual activity.
- Use the right setting: relaxation and arousal improve outcomes—these medicines support the process, they don’t replace it.
- Limit heavy meals beforehand: especially if you want predictable onset.
- Be cautious with alcohol: moderate intake helps avoid dizziness and reduced performance.
- Don’t “double up”: if one dose doesn’t work, avoid taking more frequently than recommended. Instead, consider reviewing timing, food/alcohol, and interactions with your pharmacist or clinician.
- Track what helps: note meal timing, alcohol, stress level, and when you took the tablet. This information can help tailor safe adjustments.
- Check contraindications: especially nitrates, riociguat, and certain blood pressure medicines.
Alternative treatment options (ED alternatives)
If Silvitra is not suitable or not providing the results you need, there are other approaches:
Other ED medicines (PDE5 inhibitor options)
- Sildenafil (single-ingredient options)
- Tadalafil (longer duration for some men)
- Vardenafil (single-ingredient options)
Non-medicine options
- Lifestyle support: managing weight, exercise, smoking cessation, and sleep quality
- Addressing anxiety/stress: performance anxiety and relationship factors are common contributors
- Medical causes: evaluating diabetes, cardiovascular risk, testosterone issues, and medication side effects
- Other therapies: vacuum erection devices, penile injections, or referral to a specialist if appropriate
Your best option depends on your medical history, preferences, and how you respond to treatment.
Market and legal context for Australia (patient-friendly overview)
In Australia, medicines are regulated to ensure quality, safety, and appropriate use. ED treatments and PDE5 inhibitors may be supplied under specific frameworks depending on their classification and sourcing.
When purchasing online, look for clear product identification, authorised supply information, and transparent policies. Avoid products that cannot clearly state active ingredients, strengths, batch/expiry details, or which do not provide credible regulatory information.
For the most up-to-date local rules, it’s helpful to check Australian resources such as:
- TGA (Therapeutic Goods Administration) guidance on medicines and scheduling
- Pharmacy and consumer medicine information available with products
If you have questions about eligibility or sourcing, consult a qualified healthcare professional or pharmacist.
Recent guidance and important notes
Guidance for PDE5 inhibitors in Australia and internationally emphasises safety screening, particularly around: nitrates, cardiovascular risk, drug interactions (especially strong enzyme inhibitors/inducers), and warning signs such as priapism or sudden visual/hearing changes.
Keep in mind:
- Never combine PDE5 inhibitors with nitrates or “poppers”.
- Be cautious with multiple interacting medicines—especially blood pressure medications and strong liver enzyme modifiers.
- Prioritise urgent care for serious symptoms (prolonged erection, sudden vision loss, chest pain, fainting).
Product-specific directions and the consumer medicine information for your brand should be your primary reference.
Delivery and availability (Australia)
Online pharmacies typically offer delivery across Australia, subject to product scheduling, supplier verification, and state/territory requirements. Availability may vary depending on stock levels and lead times.
- Dispatch: Many orders are dispatched within 1–2 business days (varies by pharmacy).
- Delivery times: Transit time depends on courier services and your location.
- Packaging: Discreet packaging is commonly offered.
- Age and eligibility checks: Some medicines require identity or eligibility verification at checkout.
For your order, check the store’s shipping page for current estimated delivery windows, tracking, and return/refund policies.
FAQ (Frequently Asked Questions)
1) How long does Silvitra take to work?
Many people notice effects within 30–60 minutes. A heavy or high-fat meal can delay onset. Individual response varies.
2) Can I take Silvitra with food?
Yes, but if you eat a heavy meal—especially high in fat—your onset may be slower. For more predictable timing, consider a light meal or take it on an emptier stomach.
3) Is Silvitra the same as Viagra?
Silvitra contains PDE5 inhibitors, including sildenafil. However, it also contains vardenafil. Because it combines two medicines, the dosing and side-effect profile may differ from single-ingredient products.
4) Can I drink alcohol while using Silvitra?
Moderate alcohol may be possible for some people, but alcohol can reduce erection quality and increase risks like dizziness or low blood pressure. Avoid binge drinking and stay hydrated.
5) What medicines should I avoid?
Do not use Silvitra with nitrates (including nitrate medications for chest pain) or recreational “poppers.” Be cautious and get advice before combining with riociguat, alpha-blockers, or strong enzyme-interacting medicines (certain antifungals, antibiotics, and HIV medicines).
6) What if I don’t get an erection?
Consider timing, food and alcohol intake, stress, and whether interactions might be affecting effectiveness. Do not increase frequency beyond label directions. If problems persist, speak with a healthcare professional to evaluate underlying causes.
7) What should I do if I get side effects?
Many mild side effects (headache, flushing, indigestion) settle. Stop use and seek urgent help if you experience severe dizziness, fainting, chest pain, priapism (an erection lasting longer than recommended), or sudden vision/hearing problems.
8) Can women or children use Silvitra?
Silvitra is intended for adult men with erectile dysfunction. It is not for use in women or children.
9) Is it safe to drive after taking Silvitra?
Some men may feel dizzy or experience visual changes. If you feel unwell, avoid driving or operating machinery until you know how Silvitra affects you.
10) How should I store Silvitra?
Store tablets as directed on the pack (typically at room temperature, away from moisture and heat). Keep out of sight and reach of children.
Important: This information is intended to support patient understanding and does not replace medical advice. If you are unsure about suitability, interactions, or dosing, consult a healthcare professional or pharmacist.
