Viagra Gold – Vigour (Sildenafil Citrate): Patient Guide for Australia
Basic Product Information
| International Non-proprietary Name (INN) | Sildenafil Citrate |
|---|---|
| Common Brand Names (Australia) | Viagra, Viagra Gold, Vigour, Kamagra (less common), Silvasta, Vedafil |
| ATC Code | G04BE03 |
| Available Forms & Strengths | Oral film-coated tablets (25 mg, 50 mg, 100 mg), “Viagra Gold – Vigour” tablets (100 mg) |
| Manufacturer | Various (Pfizer Australia Pty Ltd. is the original manufacturer. Generic forms are available from reputable manufacturers in Australia and overseas.) |
| Legal Status | Prescription Only Medicine (Schedule 4, Australia) |
Mechanism of Action
For Everyone — Viagra Gold – Vigour contains sildenafil citrate, a medicine used to treat erectile dysfunction (ED) in men. It works by increasing blood flow to the penis during sexual arousal, helping achieve and maintain an erection that is firm enough for sexual activity.
For Health Professionals — Sildenafil is a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5). Inhibition of PDE5 increases cGMP, leading to smooth muscle relaxation and improved blood flow in the corpus cavernosum.
Pharmacokinetics
- Absorption: Rapidly absorbed; peak plasma concentrations reached within 30–120 minutes (typically ~60 minutes) after oral administration.
- Bioavailability: Approx. 40%.
- Metabolism: Primarily hepatic via CYP3A4; minor CYP2C9 pathway.
- Elimination: Mainly via faeces (as metabolites); minor route renal excretion. Terminal half-life is 3–5 hours.
- Duration of Action: Up to 4–6 hours with sexual stimulation.
Use in Everyday Life & Best Practices (Australian Context)
- Purpose: Used mainly for the treatment of erectile dysfunction (men unable to get or keep an erection).
- Usual Dose: 50 mg tablet taken as needed, about 1 hour before sexual activity. Dose may range from 25 mg to 100 mg, depending on age and health. Never exceed one dose in 24 hours.
- How to Use: Swallow the tablet whole with water. Use only as prescribed by your doctor.
- Lifestyle Considerations: Smoking, obesity, high alcohol intake, or stress can reduce efficacy. Healthy diet and regular exercise may help.
- Storage: Store below 30°C in a cool, dry place. Keep out of reach of children.
Dosing: Morning vs. Evening
- Morning: Less common; can be used for anticipated morning intercourse. May not be optimal as fasting can enhance onset, but morning meals may delay onset.
- Evening: Most patients take it in the evening, about an hour before planned sexual activity; this aligns with peak times for intimacy.
- Tips:
- Take it at least one hour before intercourse, but no more than once daily.
- Avoid high-fat meals close to dose as this can reduce effectiveness.
Taking With Food vs. Empty Stomach
- Sildenafil can be taken with or without food.
- High-fat meals (such as fish & chips, burgers, heavy English breakfasts) may delay absorption and reduce effect. Prefer a light meal or empty stomach for best performance.
- If using alcohol, limit to 1–2 standard drinks; heavy drinking lowers effectiveness and increases risk of side effects.
Interaction Warnings
| Type | Substance | Advice |
|---|---|---|
| Medications | Nitrates (GTN spray, isosorbide, etc.), riociguat | Absolute contraindication—do not use with Viagra Gold; risk of severe hypotension. |
| Medications | Alpha-blockers (doxazosin, prazosin, tamsulosin) | Possible additive drop in blood pressure—take with caution and medical advice. |
| Medications | Certain antifungals and antibiotics (ketoconazole, erythromycin) | May increase sildenafil levels; lower starting dose under close supervision. |
| Food | Grapefruit and grapefruit juice | Avoid—can dramatically increase blood levels and risk of side effects. |
| Alcohol | Excessive consumption | Can worsen side effects (dizziness, drop in blood pressure) and impair sexual performance. |
| Other | Herbal supplements and over-the-counter “sex boosters” | Unpredictable effects; discuss with pharmacist or doctor first. |
Indications (Official and Off-label)
| Indication | Official/Off-label | Details |
|---|---|---|
| Erectile Dysfunction (ED) in adult men | Official | First-line treatment for men unable to achieve/maintain erections. |
| Pulmonary Arterial Hypertension (PAH) | Official (as Revatio) | Lower doses (20 mg 3x daily) for PAH under specialist supervision. |
| Raynaud’s Phenomenon; female sexual arousal disorder | Off-label | Limited evidence; not routinely prescribed in Australia for these uses. |
Dosing According to Clinical Indication
| Patient Group | Indication | Usual Dose | Notes |
|---|---|---|---|
| Adult men (18–65 years) | Erectile Dysfunction | 50 mg as needed (adjust to 25 mg or 100 mg based on efficacy/tolerance) | Max 1 dose per 24 hours |
| Older adults (>65 yrs) | Erectile Dysfunction | Start with 25 mg as needed (may increase cautiously) | Increased sensitivity to side effects |
| Children/Adolescents | PAH only (specialist use) | Specialist dose — Not for ED | Do not use for ED in minors |
| Patients with renal/hepatic impairment | ED or PAH | Start with 25 mg | Monitor closely for side effects |
Safety Profile & Side Effects
Viagra Gold – Vigour is generally well-tolerated, but can cause side effects. Seek immediate help if you experience chest pain, severe dizziness, or vision loss.
| Frequency | Side Effect | Advice |
|---|---|---|
| Common (>1/10) | Headache, flushing, nasal congestion, indigestion, visual changes (blue tinge, blurred vision) | Usually mild. Reduce dose or discuss with your doctor if persistent. |
| Occasional (1/100 to 1/10) | Dizziness, muscle pain, rash, nosebleeds, raised heart rate, diarrhoea | If troublesome, see your GP. |
| Rare (<1/1,000) | Priapism (painful/prolonged erection >4 hrs), sudden hearing/vision loss, allergic reactions | Seek urgent medical care immediately. |
| Warnings | Do not use if taking nitrates/gtn or severe cardiac/eye disease, recent stroke/heart attack. | Strict doctor supervision needed. |
Guidelines for Proper Use (Australia)
- Consultation: Always see a doctor for new erectile problems. Self-medication carries risks.
- GP Review: Review your prescription annually or after any major health change.
- Pharmacy Advice: Purchase from a registered pharmacy. Avoid overseas/unregulated sources to prevent counterfeit medication.
- Avoid Driving: If you feel dizzy or have visual changes, do not drive or use heavy machinery.
- Disposal: Return unused tablets to your local pharmacy.
- Safe Sex: Viagra does not protect against sexually transmitted infections or act as contraception.
Alternative Treatment Options (PBS-reimbursed)
- Tadalafil (Cialis): Longer half-life; allows for more spontaneous activity; works up to 36 hours. On PBS for specific conditions.
- Vardenafil (Levitra): Rapid onset; similar benefits and side effect profile.
- Avanafil (not currently on PBS): Fast onset; similar efficacy.
- Non-drug therapies: Vacuum erection devices, penile injections, penile implants, counselling.
Pros & Cons: Sildenafil offers fast onset, proven effectiveness, and is cost-effective. Tadalafil suits those preferring spontaneity; Vardenafil helps where sildenafil gives side effects. Discuss with your GP for the best option in your case.
Legal, Registration, and Reimbursement Status in Australia
- Regulator: Registered with the Therapeutic Goods Administration (TGA).
- Legal Classification: Schedule 4 (Prescription Only Medicine).
- Prescription: Required from a registered Australian prescriber.
- Reimbursement: Not listed on the Pharmaceutical Benefits Scheme (PBS) for erectile dysfunction in most cases (some exceptions for PAH).
- Online Sale: Only via accredited online pharmacies with a valid prescription.
Latest Clinical Guidance & Research (2022–2025)
- Sildenafil remains first-line therapy for most cases of ED (see: “Management of Erectile Dysfunction,” Australian Doctor Group, 2023).
- Recent guidelines confirm that a cardiovascular assessment is recommended before prescribing (see: Australian Journal of General Practice, 2022).
- 2024 meta-analysis: Most men with ED will respond to 50 mg; benefits for psychological wellbeing and relationship satisfaction are well-established (BJU International, 2024).
- Non-responders may benefit from switching PDE5 inhibitor or combining therapies — always under specialist care.
Availability & Delivery (Australia)
| Pack Size | Typical Retail Price* | Estimated Delivery Time |
|---|---|---|
| 4 tablets (100 mg) | $25–35 | 1–2 business days (Sydney, Melbourne, Brisbane, Perth); 2–5 days (regional/rural) |
| 8 tablets (100 mg) | $45–65 | 1–2 business days (major metro); 2–5 days (regional) |
| 12 tablets (100 mg) | $70–95 | 1–2 business days (metro); up to 5 days (remote towns, NT, WA) |
*Prices are indicative and can vary between pharmacies. Delivery times given for in-stock, valid prescription orders via registered online pharmacy.
Frequently Asked Questions (FAQ)
- How long does Viagra Gold – Vigour take to work?
Most men find it works within 30–60 minutes. Take about one hour before planned sexual activity for best results. - Can I use it every day?
It is safe for many men to use 2–3 times per week, but not more than once in 24 hours. Chronic use requires ongoing medical supervision. - Will food or alcohol affect how it works?
Yes. High-fat meals may delay effect, and alcohol can reduce efficacy and increase risk of side effects. Stick to light meals and minimal alcohol. - Are online versions safe?
Only buy from a registered Australian pharmacy with a prescription. Avoid unregulated overseas sites due to risk of counterfeits. - What should I do if I miss my intended dose?
Skip the missed dose. Do not double up. Only take before planned sexual activity.
For more information or to discuss if Viagra Gold – Vigour (Sildenafil Citrate) is right for you, speak to your GP or local pharmacist. Report any side effects or concerns to your healthcare provider. Each patient’s needs are unique; please follow medical advice tailored to your situation.
