Fildena (Sildenafil Citrate)

Fildena (Sildenafil Citrate) – Patient Information for Australia

Basic Product Information

Mechanism of Action

For Patients: Fildena contains sildenafil citrate, which works by relaxing blood vessels in the penis. This increases blood flow, helping men with erectile dysfunction (ED) to achieve and sustain an erection during sexual activity. The medicine will only work with sexual stimulation.

For Specialists: Sildenafil is a selective inhibitor of phosphodiesterase type 5 (PDE5). By blocking PDE5, sildenafil enhances the levels of cyclic guanosine monophosphate (cGMP) in the corpus cavernosum tissue. This potentiates nitric oxide-mediated vasodilation, thus improving erectile response to sexual stimulation.

Pharmacokinetics

• Absorption: Fildena is rapidly absorbed, with peak plasma concentrations reached within 30-120 minutes (median ~60 mins).
• Metabolism: Sildenafil is extensively metabolised in the liver via the CYP3A4 and CYP2C9 pathways.
• Elimination: Its metabolites are mainly excreted in the faeces (80%), remainder in urine. The terminal half-life is 3–5 hours.
• Duration of Action: Effects typically last 4–6 hours after taking a dose.

Use in Everyday Life and Best Practices

• Typical Dose: For most men, the recommended starting dose is 50 mg, taken as needed about one hour before sexual activity. The dose may be adjusted between 25–100 mg based on effectiveness and tolerance.
• How to Take: Take Fildena with a glass of water. Do not take more than once in 24 hours.
• Australian Context: Discuss any heart or blood pressure conditions with your GP before starting Fildena. Sexual activity should be considered in line with overall cardiovascular health.
• Ensure safe private storage, away from children, in a cool, dry place below 25°C — typical for Australian home conditions.

Dosing: Morning vs Evening

• You should take Fildena about one hour before planned sexual activity.
• Some men prefer to take it in the evening before anticipated sexual activity.
• Morning Use: Can be considered if sexual activity is expected in the morning, but heavy breakfast foods may slow the onset.
• Evening Use: More common, especially after work or dinner; however, avoid fatty meals for best results.
• Tip: Maintain regularity (e.g., same time of day) if you find it helps with planning and effect.

Taking With Food or on an Empty Stomach

• With Food: High-fat meals (fried English breakfast, burgers, fatty takeaways) can delay the onset of action. If taken after a heavy meal, the effect may be slower.
• On an Empty Stomach: Taking Fildena on an empty stomach (or after a light meal) leads to quicker and more predictable absorption.
• Australian Dietary Habits: If you have hearty dinners, consider waiting 2–3 hours after eating before taking Fildena.

Interaction Warnings

Indications

Dosing According to Clinical Indications

Safety Profile & Side Effects

• Headache
• Flushing (face and neck warmth)
• Nasal congestion
• Indigestion (dyspepsia)
• Visual changes (mild blue tint, blurred vision)
• Dizziness

• Serious allergic reactions (rash, swelling, breathing problems)
• Prolonged erection (>4 hours, priapism) – seek emergency help
• Sudden loss of vision or hearing
• Irregular heartbeat, chest pain

• Not for use in patients with severe heart or liver problems, or recent stroke/heart attack
• Unsafe if taking nitrates for heart conditions
• Always speak to your pharmacist or GP if unsure

Guidelines for Proper Use (Australian Practice)

• Always use Fildena as prescribed by your doctor. Do not exceed the maximum recommended dose.
• If you miss a dose (for other indications), take as soon as you remember, but skip if close to next dose.
• Keep hydrated, especially in hot Australian summers. Avoid excess alcohol, which may reduce effectiveness.
• Keep in sealed original packaging. Bring unused tablets (expired or no longer needed) back to your community pharmacy for safe disposal according to Return Unwanted Medicines program.
• If you experience chest pain, sudden vision changes, or an erection lasting more than 4 hours, seek emergency assistance via 000.
• Do not drive or operate machinery if you feel dizzy or have visual disturbances after taking Fildena.
• Be aware of HealthDirect and Therapeutic Goods Administration (TGA) for health and medicine information in Australia.

Alternative Treatment Options for Erectile Dysfunction

Non-pharmacological options: Counselling, lifestyle changes, vacuum erection devices, and treatment of underlying medical conditions. Consult your GP or a sexual health specialist.

Legal, Registration and Reimbursement Status in Australia

• Regulatory approval: Registered with the Therapeutic Goods Administration (TGA).
• Prescription requirement: Schedule 4 (S4) – Prescription-only medicine.
• Reimbursement: PDE5 inhibitors (including brand/generic sildenafil) are NOT listed on the Pharmaceutical Benefits Scheme (PBS) for erectile dysfunction. Full private purchase price applies outside of special circumstances (e.g., PAH).
• Dispensing: Available at Australian community pharmacies via private script from a medical practitioner.
• Supply restrictions: Advertising direct to the public is restricted, and medicines are dispensed only at licensed premises.

Latest Research and Clinical Guidance (2022–2025)

• Recent international and Australian guidelines (EAU 2022, AUA 2023, Men’s Health Australia) confirm sildenafil remains first-line therapy for ED.
• Ongoing research explores lower-dose options and regular-dosing schedules, but “on demand” use is still recommended for most patients. (García-Perdomo, et al. 2023)
• Combination therapy (e.g., sildenafil plus psychological support or statins in selected cases) is under investigation. (AU Urology Journal, 2024)
• No new safety signals. TGA safety update (2024) continues to caution about cardiovascular risk and rare but serious vision/hearing events.
• RACGP clinical guideline last updated 2023 recommends shared decision making with GP and regular review.

Availability, Popular Pack Sizes, and Delivery in Australia

FAQ – Common Patient Questions

1. Can I buy Fildena (sildenafil) online in Australia?
   No. By law, all sildenafil-containing medicines for ED require a prescription from an Australian-registered doctor. Only order from Australian pharmacies that request your script.
2. What should I do if Fildena does not work the first time?
   It is common for these medicines not to work first time. Try on at least 6 separate occasions, following instructions (empty stomach, sexual stimulation) before judging effect. If no improvement, consult your GP.
3. Can I take Fildena with alcohol?
   Moderate alcohol (1–2 standard drinks) is unlikely to interact, but excessive alcohol can prevent erection and increase the risk of side effects such as headache or dizziness.
4. Is daily use of Fildena safe?
   Daily use is not recommended for everyone. Take only as prescribed (“as needed” basis is typical). Daily low-dose use (25 mg) may be considered in some men but should be under GP supervision.
5. What should I do if I have side effects or an erection lasting more than 4 hours?
   Stop taking the medication and seek emergency care if you have a prolonged or painful erection, sudden vision loss, or chest pain. For milder side effects, inform your pharmacist or GP.

For more information, speak to your doctor, local pharmacist, or visit HealthDirect Australia.