Femalegra (Sildenafil Citrate) – Patient-Friendly Guide for Australia
Basic Product Information
| International Nonproprietary Name (INN) | Sildenafil Citrate |
|---|---|
| Australia Brand Names | Femalegra, Viagra, Revatio (revatio for pulmonary hypertension) |
| ATC Code | G04BE03 |
| Available Forms & Strengths | Film-coated tablets (25 mg, 50 mg, 100 mg); Commonly: 100 mg for Femalegra |
| Manufacturers | Various licensed providers and pharmaceutical companies (e.g., Sunrise Remedies Pvt. Ltd. for Femalegra) |
| Prescription Status in Australia | Prescription Only Medicine (S4, as per TGA classification) |
Mechanism of Action
For Patients: Femalegra contains sildenafil citrate, which works by relaxing blood vessels and increasing blood flow to specific parts of the body. This helps improve sexual arousal and response.
For Healthcare Professionals: Sildenafil is a selective phosphodiesterase type 5 (PDE5) inhibitor. By blocking PDE5, the drug enhances the effect of nitric oxide (NO) in the corpus cavernosum, increasing cyclic guanosine monophosphate (cGMP) levels, leading to smooth muscle relaxation and increased vascular blood flow. While primarily used for erectile dysfunction, sildenafil at the heart of Femalegra is being studied for female sexual dysfunction because of its impact on blood supply to pelvic tissues.
Pharmacokinetics
- Absorption: Rapidly absorbed with peak plasma concentrations typically reached within 30 to 120 minutes (median 60 minutes) after oral administration. Bioavailability is around 40%.
- Metabolism: Hepatically metabolised primarily by CYP3A4, with some CYP2C9 involvement.
- Elimination: Excreted mainly as metabolites in faeces (up to 80%) and urine (13%).
- Duration of Action: Average effect lasts between 4 to 6 hours for most individuals.
- Half-life: About 3–5 hours.
Use in Everyday Life and Best Practices in Australia
Femalegra (sildenafil citrate) should be used exactly as prescribed by your doctor. For sexual health and response issues, the usual starting dose is 50 mg, taken about one hour before anticipated sexual activity. Some individuals may benefit from 100 mg or as low as 25 mg, depending on tolerability.
- Swallow tablets whole with water – do not crush or chew.
- It is not intended for use more than once daily.
- Discuss openly with your GP, gynaecologist, or sexual health clinic if you experience persistent troubles.
Note: In the English context, support resources, such as Women's Health Queensland and Family Planning NSW, can provide additional advice.
Dosing: Morning vs Evening
- Morning Use: May be suitable for those with planned morning intimacy, but consider that absorption can be slower after a hearty English breakfast.
- Evening Use: Preferred by most as sexual activity often occurs later in the day. Food and alcohol consumption may delay effects—plan timing accordingly.
- Tips: Maintain a regular routine if possible; consider your personal schedule and responses.
Taking with Food or on an Empty Stomach (Australia Dietary Habits)
Femalegra can be taken with or without food, though absorption may be delayed if consumed with a high-fat meal—such as fish and chips, meat pies, or other traditional Australian fare. For quicker effect, take on an empty stomach or after a light meal.
- On Empty Stomach: Faster onset of action; ideal if timing is a priority.
- With Food: May take longer to work, especially after fatty meals.
- Alcohol: Excessive alcohol can decrease responsiveness and increase side effects.
Interaction Warnings
| Interacting Substance | Type of Interaction | Precautions |
|---|---|---|
| Nitrate medications (e.g., nitroglycerin) | Severe drop in blood pressure | Contraindicated—Do NOT use together |
| Alpha-blockers (e.g., prazosin) | Increased risk of hypotension | Monitor blood pressure closely |
| Other PDE5 inhibitors (tadalafil, vardenafil) | Increased risk of side effects | Do NOT combine |
| HIV protease inhibitors (ritonavir) | Increased sildenafil levels | May require lower dose |
| Clarithromycin, erythromycin (antibiotics) | Delayed metabolism of sildenafil | Consult doctor about dosing |
| Alcohol | Potential to worsen side effects | Limit alcohol intake |
| Grapefruit/grapefruit juice | Interferes with drug metabolism | Avoid during treatment |
Indications
| Official (TGA-approved) Indication | Off-label Uses |
|---|---|
| Treatment of pulmonary arterial hypertension; |
|
Please note: Femalegra is not yet officially registered for female sexual arousal disorder in Australia but may be used off-label under specialist care.
Dosing According to Clinical Indication
| Patient Group | Indication | Recommended Dose | Notes/Adjustments |
|---|---|---|---|
| Adult Women | Sexual Dysfunction (off-label) | 50 mg, taken ~1 hour before sexual activity (max 100 mg) | Individualised dosing based on tolerability and effect |
| Adults (PAH) | Pulmonary Arterial Hypertension | 20 mg, 3 times/day (as Revatio) | Not interchangable with doses for sexual response |
| Elderly (≥65 years) | Sexual Dysfunction | 25 mg initially, titrate as required | Increased risk of side effects, monitor closely |
| Paediatrics | Not recommended for sexual indication; | NA | Only for PAH under specialist care |
| Hepatic/Renal impairment | – | Start at lowest available dose | Monitor for increased effects |
Safety Profile & Side Effects
| Frequency | Side Effects |
|---|---|
| Common |
|
| Occasional |
|
| Rare |
|
Warnings: Seek immediate medical attention for chest pain, sudden loss of vision or hearing, or if adverse symptoms are severe.
Guidelines for Proper Use
- Only use Femalegra as prescribed by an Australian-registered doctor.
- Store in a cool, dry place, away from direct sunlight and heat sources; keep out of reach of children.
- Do not share your medications with others, even if they have similar symptoms.
- If you miss a dose (for regular administration in PAH), take as soon as you remember, unless it is almost time for your next dose. For as-needed sexual use, do not double up doses.
- Contact your local pharmacist or GP if you are unsure about taking Femalegra with other medicines or supplements.
- Be aware of the potential interactions with popular Australian foods and drinks (grapefruit, some herbal supplements, alcohol).
Alternative Treatment Options
- Tadalafil (Cialis): Longer-acting PDE5 inhibitor; considered for off-label female use but not TGA-approved for FSAD.
- Vardenafil (Levitra): Similar mechanism; limited data in women.
- Non-drug options: Pelvic physiotherapy, psychological therapy/counselling (e.g., psychosexual counselling, available through Women’s Health services in Australia).
- Hormonal therapy: Considered where deficiency is present; requires specialist review.
No drugs for female sexual dysfunction are currently reimbursed by the PBS (Pharmaceutical Benefits Scheme) for this indication in Australia. Off-label use is at the prescriber’s discretion and patients should discuss with their doctor.
Legal, Registration, and Reimbursement Status in Australia
- Therapeutic Goods Administration (TGA): Sildenafil is registered in Australia for erectile dysfunction and pulmonary arterial hypertension. Femalegra is not TGA-registered specifically for FSAD or sexual dysfunction in females but may be prescribed off-label by authorised prescribers.
- Prescription Category: S4 (Prescription Only Medicine)
- PBS Status: Only reimbursed for PAH. Not listed for female sexual dysfunction.
- Legal Supply: Must be dispensed by a registered pharmacist on presentation of a legal prescription.
Latest Research & Clinical Guidance (2022–2025)
- Recent Reviews: Large-scale systematic reviews (BMJ, 2023; Therapeutic Advances in Drug Safety, 2024) indicate that sildenafil may offer benefit in some women with sexual arousal complaints, but evidence is mixed and individual response varies.
- Guidelines: The Royal Australian and New Zealand College of Obstetricians and Gynaecologists (RANZCOG, 2024) advise that use should be only on a case-by-case basis and after ruling out other treatable causes of sexual dysfunction.
- Ongoing Research: Clinical trials of sildenafil and related agents in female sexual dysfunction continue to enrol in Australia (see ANZCTR.gov.au for current studies).
- Clinical Considerations: Optimal patient selection and integrated multidisciplinary support are recommended for best outcomes (NEJM, 2022).
Availability and Delivery in Australia
| Pack Size | Indicative Price (AUD) | Delivery Time (Days) |
|---|---|---|
| 4 tablets (100 mg) | $22–$32 | 1–2 (Sydney, Melbourne, Brisbane) |
| 12 tablets (100 mg) | $62–$80 | 2–3 (Perth, Adelaide, Hobart) |
| 24 tablets (100 mg) | $120–$160 | 3–5 (regional/rural areas) |
Medicines requiring a prescription must be delivered to an address within Australia, with ID verification required at the time of delivery.
FAQs: Femalegra (Sildenafil Citrate) in Australia
- Is Femalegra available over the counter in Australia?
No. It is a prescription-only medicine (S4) and can only be supplied by a pharmacy with a valid prescription from a registered doctor. - Can I use Femalegra for female sexual dysfunction?
While not officially approved for this indication in Australia, your doctor may consider prescribing it off-label if they deem it appropriate for your situation. - What should I do if I experience side effects?
Most side effects are mild and temporary. However, if you experience chest pain, severe headache, vision or hearing changes, or allergic reaction, stop taking Femalegra and seek immediate medical attention. - Does drinking alcohol affect Femalegra?
Alcohol can increase the risk of side effects and may reduce the effectiveness. It’s wise to limit or avoid alcohol when using this medicine. - How soon before sexual activity should Femalegra be taken?
Generally, take the tablet about 30–60 minutes before anticipated sexual activity, but always follow your doctor’s specific instructions.
For further advice or to discuss your individual needs, please consult your GP, women’s health specialist, or community pharmacist in Australia.
