Silvitra (Sildenafil Citrate 100 mg + Vardenafil 20 mg) – Patient Information (Australia)
Silvitra is a combination medicine used to treat erectile dysfunction (ED). It contains two active ingredients: sildenafil citrate 100 mg and vardenafil 20 mg. Together, these medicines help improve blood flow to the penis during sexual stimulation, which can make it easier to achieve and maintain an erection.
This page explains how Silvitra works, when to take it, key safety information, interactions (including alcohol and other medicines), practical tips for use, and frequently asked questions. It is written for patients in Australia.
Quick Facts
- Medicine: Silvitra
- Ingredients: Sildenafil citrate 100 mg + Vardenafil 20 mg
- Used for: Erectile dysfunction (ED)
- How it works: Supports increased blood flow during sexual arousal
- Typical onset: Often within 30–60 minutes (varies by person)
- Duration: May help for several hours (response varies)
- Important safety note: Do not use with medicines containing nitrates.
Basic Product Information
| Feature | What to know |
|---|---|
| Brand | Silvitra |
| Active ingredients | Sildenafil citrate 100 mg + Vardenafil 20 mg |
| Medicinal form | Oral tablets (swallowed whole with water) |
| Common use | ED in adult men |
| Sexual stimulation required | Yes—these medicines work best with sexual arousal |
| Maximum frequency | Use exactly as directed by your healthcare professional |
How Silvitra Works (Mechanism of Action)
Silvitra belongs to a group of medicines called phosphodiesterase type 5 (PDE5) inhibitors. Sildenafil and vardenafil both help relax smooth muscle in the blood vessels of the penis.
During sexual stimulation, the body releases nitric oxide (NO). NO triggers a pathway that increases cyclic GMP, which helps the blood vessels relax and allows blood to flow into the penis.
PDE5 inhibitors slow down the breakdown of cyclic GMP. The result is enhanced blood flow to the penis, supporting erection quality and firmness. These medicines do not create sexual desire; they assist the vascular response needed for erection.
Pharmacokinetics (How the Body Handles the Medicines)
Understanding pharmacokinetics can help you plan timing. While exact values may vary by individual and product formulation, the key concepts for sildenafil and vardenafil are similar:
- Absorption: Both medicines are absorbed through the gastrointestinal tract after oral dosing.
- Onset: Most people notice an effect within about 30–60 minutes, though earlier or later effects can occur.
- Peak levels: Each drug reaches its highest concentration in the blood at different times.
- Elimination: Both drugs are metabolised mainly in the liver and cleared from the body through metabolism.
- Duration: The clinical effect can last for several hours, but the strength of effect may vary across that period.
Because this product contains two PDE5 inhibitors, you may experience a broader window of action. However, using multiple PDE5 inhibitors can also increase the chance of side effects in some people, especially when combined with certain medicines or in those with cardiovascular risk factors.
What Silvitra is Used For (Indications)
Silvitra is indicated for the treatment of erectile dysfunction (ED) in adult men. ED refers to persistent difficulty achieving or maintaining an erection sufficient for satisfactory sexual performance.
If ED is new, worsening, or associated with chest pain, shortness of breath, or fainting, seek medical advice promptly, as these may be signs of underlying cardiovascular conditions.
Typical Use and Timing
When to take it
- Plan ahead: Take Silvitra about 30–60 minutes before sexual activity.
- Flexible timing: Some people may do best slightly earlier or later.
- Sexual stimulation is required: The medicine works with arousal, not without it.
How often to take it
Follow the dosing instructions provided by your healthcare professional or the product guidance you have been given. In general, PDE5 inhibitors are used intermittently rather than continuously.
Avoid taking more than recommended. If you need ED treatment more frequently, talk to a clinician to discuss the safest plan.
Dosing Information (Adult Use)
Silvitra tablets contain sildenafil 100 mg and vardenafil 20 mg per dose. This is a higher-dose combination compared with many standard single-PDE5 products, so safety and interaction checks are especially important.
- Usual dose: One tablet taken orally as directed.
- Maximum dose: Do not exceed the recommended frequency.
- Missed dose: Not applicable for ED medicines taken before activity.
- Special groups: People with liver impairment, kidney impairment, or older age may need different dosing and closer monitoring.
If you are unsure whether Silvitra is suitable for you, discuss with a qualified healthcare professional—particularly if you take heart medications, have low blood pressure, or have significant liver or kidney disease.
Food Interactions: What to Know
Food can affect how quickly PDE5 inhibitors begin working. The effect depends on meal size and type, especially high-fat meals.
- Large or high-fat meals: May delay onset (you may need to allow more time before sex).
- Light meals: Often cause less delay.
- General advice: If you find it is not working as expected, consider timing the dose relative to meals.
To improve predictability, many patients choose to take the tablet after a lighter meal or with a consistent meal routine.
Alcohol Interactions
Alcohol can worsen ED by affecting blood vessel function and reducing sexual performance. It can also increase dizziness and low blood pressure—especially when combined with PDE5 inhibitors.
Practical guidance
- Moderate to heavy alcohol: May reduce effectiveness and increase side effects such as headache, flushing, or light-headedness.
- Safety first: Avoid driving or operating machinery if you feel dizzy.
- Recommended approach: Keep alcohol intake low on the day you use Silvitra.
Medicine Interactions (Very Important)
Silvitra can interact with several classes of medicines. These interactions may cause dangerously low blood pressure, affect drug levels, or increase side effects. Always review your current medication list with a healthcare professional.
Nitrates and nitrate-like medicines – Do not combine
Do not use Silvitra with nitrates (for example, glyceryl trinitrate) or medicines that release nitrates, such as certain angina treatments. The combination can cause severe, potentially life-threatening drops in blood pressure.
If you have chest pain and need urgent treatment, the presence of PDE5 inhibitors matters—seek emergency care.
Riociguat – Avoid
Do not use PDE5 inhibitors with riociguat (used for certain pulmonary hypertension conditions) because the combination can also lower blood pressure.
Alpha-blockers – Caution
If you take medicines for prostate enlargement or high blood pressure (alpha-blockers), the combination can increase the risk of dizziness or low blood pressure. Your clinician may adjust timing and dosing.
Strong CYP3A4 inhibitors – May increase drug levels
Some medicines can raise sildenafil/vardenafil blood levels by affecting metabolism, increasing side effects. Examples may include certain antifungals and some antibiotics. This can increase risk of headache, flushing, and blood pressure changes.
Other PDE5 inhibitors – Do not double up
Silvitra already contains two PDE5 inhibitors. Do not combine it with additional PDE5 medicines such as tadalafil or more sildenafil/vardenafil.
Blood pressure medicines
Combining PDE5 inhibitors with blood pressure-lowering treatments can increase light-headedness. This is especially relevant if you already experience low blood pressure symptoms.
“Lifestyle” supplements
Be cautious with supplements that claim “sexual enhancement” or contain hidden drug ingredients. These may interact with PDE5 inhibitors. Use products with clear ingredient lists from reputable sources.
Safety Profile and Possible Side Effects
Most patients tolerate PDE5 inhibitors well, but side effects can occur—particularly with higher-dose or combination use. The side effect profile for sildenafil and vardenafil is generally similar.
Common side effects
- Headache
- Flushing (warmth, redness)
- Dizziness or light-headedness
- Indigestion
- Nasal congestion
- Back pain or muscle aches (may occur in some PDE5 users)
- Visual changes (e.g., mild color tinting or blurred vision—usually temporary)
Less common but important effects
- Low blood pressure symptoms (fainting, severe dizziness)
- Allergic reactions (rash, swelling, breathing difficulties)
- Prolonged erection (priapism): a painful erection lasting more than 4 hours requires urgent medical attention
- Sudden vision or hearing changes: seek urgent medical assessment
- Chest pain during sexual activity: stop and seek medical help
When to seek urgent care
Contact emergency services or urgent medical care if you experience:
- Symptoms of severe low blood pressure (fainting, collapse)
- An erection lasting longer than 4 hours
- Chest pain, severe shortness of breath, or neurological symptoms (weakness, trouble speaking)
- Sudden vision loss or sudden hearing loss
- Swelling of face/lips or trouble breathing
Practical Use Tips for Better Results
- Ensure arousal: These medicines work best when you are sexually stimulated.
- Choose the right moment: Start with dosing 30–60 minutes before sex; adjust only if safe and consistent.
- Limit alcohol: Too much alcohol can reduce both erection quality and safety.
- Manage meal timing: Avoid heavy, fatty meals right before dosing if you want more predictable onset.
- Know your cardiovascular status: If you have heart disease, diabetes, or high blood pressure, discuss the safest approach with a clinician.
- Consider lifestyle factors: Exercise, smoking cessation, and managing diabetes can improve ED over time.
- Do not “trial and escalate”: If the dose doesn’t work or you have side effects, don’t increase frequency—seek advice.
If Silvitra does not help or causes significant side effects, it may be worth discussing alternative ED treatments, including different PDE5 options, vacuum erection devices, or prescription options tailored to your medical history.
Alternative Options for Erectile Dysfunction
ED can have multiple causes (vascular, hormonal, neurological, psychological, or mixed). Different options may suit different patients. Common alternatives include:
Other PDE5 inhibitor options
- Sildenafil-based treatments
- Tadalafil-based treatments (often longer acting)
- Vardenafil-based treatments
Non-PDE5 options
- Vacuum erection devices (mechanical assistance)
- Intracavernosal injections (medication delivered directly—requires training and clinical oversight)
- Urethral suppositories (selected cases)
- Psychosexual support when anxiety/performance stress contributes
The best approach depends on your health, medication list, and personal preferences. If ED is persistent, a clinician can evaluate contributing conditions such as diabetes, thyroid disorders, or low testosterone.
Market, Legal, and Guidance Context (Australia)
In Australia, medicines are supplied in line with regulatory requirements and may be subject to rules about how they are obtained and used. ED medicines containing PDE5 inhibitors fall under medicines regulation and are typically supplied through appropriate channels.
Australian healthcare guidance generally emphasises:
- Confirming medical suitability before use, especially if you have heart disease or take interacting medicines.
- Avoiding contraindicated combinations (notably nitrates).
- Evaluating underlying causes of ED where appropriate.
- Using ED medicines responsibly and following dosing advice.
If you are uncertain about eligibility or safety, consult a qualified healthcare professional in Australia.
Recent Guidance and Practical Safety Updates (Australia)
Guidance for PDE5 inhibitors continues to focus on interaction risk, cardiovascular safety, and early recognition of urgent side effects. Key points patients are often reminded about include:
- Do not combine with nitrates or riociguat.
- Be extra cautious with strong drug interactions (for example, medicines affecting metabolism).
- Seek urgent care for priapism (erection > 4 hours).
- Stop and seek help for chest pain or severe symptoms.
- Check that your tablet is genuine and obtained from a reputable source to reduce the risk of incorrect dosing.
If you’ve had new symptoms since starting an ED medicine, seek medical advice rather than continuing blindly.
Delivery and Availability in Australia
Availability varies by supplier and regulatory requirements. When ordering online, look for:
- Clear product details (strength, ingredients, dosage form)
- Transparent shipping information (delivery times, tracking options)
- Secure payment and customer support contacts
- Compliance information where provided
Delivery times can differ based on warehouse location and shipping method. If you need the product for a specific date, allow extra time for processing and shipping.
Always store tablets as directed on the packaging (typically in a cool, dry place) and keep out of reach of children.
FAQ – Silvitra (Sildenafil Citrate 100 mg + Vardenafil 20 mg)
1) How fast does Silvitra work?
Many people notice an effect within 30–60 minutes. Large or high-fat meals may delay onset. If it doesn’t seem to work, consider the timing relative to meals and alcohol, and discuss next steps with a clinician.
2) How long does it last?
The effect can last for several hours, though the strength of the response may vary over time. Sexual stimulation is still needed for best results.
3) Can I take Silvitra with food?
Yes, you can. However, taking it with a heavy or fatty meal may delay onset. Many patients prefer a lighter meal.
4) Is alcohol safe with Silvitra?
Light alcohol may be tolerated by some people, but moderate to heavy alcohol can reduce effectiveness and increase side effects. For safety and better results, keep alcohol intake low on dosing days.
5) What happens if I take Silvitra with nitrates?
This combination can cause dangerously low blood pressure. Silvitra must not be used with medicines containing nitrates (commonly used for angina) or medicines that release nitrates.
6) Can I combine Silvitra with other ED medicines?
No. Silvitra already contains two PDE5 inhibitors. Combining with additional PDE5 products can increase the risk of side effects and is not recommended.
7) What if Silvitra gives me headaches or dizziness?
These are common side effects. If symptoms are mild, they may settle. If you feel faint, have chest pain, or symptoms are severe, stop using the medicine and seek medical advice. Never drive if you feel dizzy.
8) What if I get an erection that lasts too long?
Seek urgent medical care if an erection lasts more than 4 hours (priapism). This is an emergency.
9) Who should be extra cautious?
People with heart disease, low blood pressure, liver impairment, kidney impairment, significant drug interactions, or who take alpha-blockers or blood pressure medications should seek tailored advice before using PDE5 inhibitors.
10) How do I use Silvitra practically for best results?
- Take the tablet about 30–60 minutes before sexual activity.
- Avoid heavy/fatty meals near the time of dosing.
- Keep alcohol low.
- Ensure sexual arousal and relaxation—anxiety can worsen ED.
- If it doesn’t work or side effects occur, don’t increase dosing; seek advice.
Important Patient Disclaimer
This information is intended to help you understand Silvitra and its general use. It does not replace advice from a qualified healthcare professional. If you have medical conditions, take other medicines, or have any concerns about suitability or safety, seek professional guidance.
