Viagra with Dapoxetine (Sildenafil with Dapoxetine): Patient Guide for Australia
Basic Product Information
| Name | Sildenafil with Dapoxetine (Combined formulation) |
|---|---|
| Brand Names (Australia) | Viagra with Dapoxetine, Sildenafil/Dapoxetine Combo, Kamagra Super |
| International Nonproprietary Names (INN) | Sildenafil, Dapoxetine |
| ATC Code | G04BE03 (Sildenafil), G04BE09 (Dapoxetine) |
| Available Forms & Strengths | Tablets: 100mg Sildenafil + 60mg Dapoxetine (most common) |
| Manufacturers | Various generic manufacturers; not produced as a registered fixed-dose combination by major Australian pharmaceutical companies |
| Prescription Status | Prescription-only (Schedule 4) in Australia |
Mechanism of Action
- Sildenafil: Works by inhibiting an enzyme called phosphodiesterase type 5 (PDE5), allowing increased blood flow to the penis, helping men get and maintain erections. For specialists: Promotes cyclic GMP accumulation, causing smooth muscle relaxation in the corpora cavernosa.
- Dapoxetine: Is a short-acting selective serotonin reuptake inhibitor (SSRI) that increases serotonin at synaptic junctions, improving control over the ejaculation reflex. For specialists: Delays emission/ejaculation by modulating central serotonergic transmission.
Pharmacokinetics
- Absorption: Both agents are rapidly absorbed orally. Peak plasma levels occur within 30–120 minutes (Sildenafil) and 1–2 hours (Dapoxetine) of dosing.
- Metabolism: Metabolised in the liver mainly via CYP3A4 and, to a lesser extent, CYP2D6. Active metabolites for both agents.
- Elimination: Primarily via the liver; excreted as metabolites in faeces and urine.
- Duration of Action: Sildenafil: Typically up to 4-6 hours; Dapoxetine: Effects last 1-3 hours (short duration).
Use in Everyday Life & Best Practices (Australia Context)
- Typical Dose: 100mg Sildenafil + 60mg Dapoxetine, taken as a single tablet about 1-3 hours before anticipated sexual activity. Dosage may be adjusted by your doctor based on response and side effects.
- How to Use: Swallow the tablet whole with water. Do not take more than one tablet in 24 hours. Only to be used as needed—not as a daily medication.
- Practical tips: Australian patients often use on weekends or evenings. It's best to discuss usage patterns openly with your GP or sexual health clinic.
- Driving/Operating Machinery: Some people may experience dizziness; wait until any effects are known.
Dosing: Morning vs. Evening
- Morning Use: May suit shift workers or those planning sexual activity in the daytime. Lower risk of sleep disruption from dapoxetine’s stimulant effect.
- Evening Use: Common for social and intimacy reasons in Australia. However, late evening use may increase the chance of sleep disturbance due to dapoxetine’s SSRI effect.
- Tips: Take the tablet about 1–3 hours before sexual activity at roughly the same time of day each use, but not more than once per 24 hours. Consistency helps you and your doctor monitor effectiveness and side effects.
Discuss the best timing for your needs with your prescribing doctor or pharmacist.
Taking with Food or on an Empty Stomach
- With Food: A high-fat meal can delay the absorption of Sildenafil, slowing onset by 30–60 minutes, though effectiveness is not reduced.
- On an Empty Stomach: Faster onset of action is likely; recommended if rapid effect is needed.
- Australia Dietary Habits: Light meals (e.g., toast or cereal) are unlikely to affect absorption. Avoid large, fatty meals before dosing.
- Water: Always take with plenty of water to avoid dehydration and help absorption.
Interaction Warnings
| Type | Item | Interaction/Advice |
|---|---|---|
| Food | Grapefruit, high-fat meals | Grapefruit delays metabolism, increasing risk of side effects; avoid. High-fat meals delay action. |
| Alcohol | Wine, beer, spirits | Increases risk of low blood pressure, fainting, dizziness; avoid or limit alcohol consumption. |
| Medications | Nitrates (GTN spray), alpha-blockers, some antifungals/antibiotics, other SSRIs/SNRIs, MAO inhibitors | May interact dangerously—particularly with nitrates (angina medications). Always inform your doctor and pharmacist of all medicines you are taking. |
| Illicit Drugs | “Poppers” (amyl nitrate), recreational stimulants | Do not use with nitrates/recreational drugs; severe falls in blood pressure, risk of cardiac complications. |
Indications (Approved & Off-Label)
| Condition | Status | Details |
|---|---|---|
| Erectile Dysfunction (ED) | Approved (Sildenafil) | Men with persistent troubles achieving or sustaining an erection sufficient for sexual performance. |
| Premature Ejaculation (PE) | Approved (Dapoxetine) | Males with consistently rapid ejaculation, distress, or interpersonal difficulty. |
| Combined Treatment | Off-label (Australia) | No registered fixed-dose combination currently approved; off-label use at clinician’s discretion. |
Other uses are not approved and should not be attempted without explicit medical guidance.
Dosing According to Clinical Indications
| Indication | Population | Typical Dose | Notes |
|---|---|---|---|
| ED + PE | Adult males (18-64 years) | 1 tablet (100/60mg) as needed, 1–3 hours prior to sexual activity | Not more than once in 24 hrs |
| ED + PE | Elderly males (≥65 years) | Start at reduced dose (e.g., 50/30mg if available); titrate as tolerated | Higher risk of side effects |
| ED + PE | Pediatrics (<18 years) | Not recommended; safety and efficacy not established | Contraindicated |
Safety Profile & Side Effects
| Frequency | Side Effect | Advice/Warning |
|---|---|---|
| Very common (>10%) | Headache, flushing, dizziness, nasal congestion, nausea | Usually mild, reversible |
| Common (1–10%) | Digestive disturbance, insomnia, dry mouth, diarrhoea, blurred vision | Monitor; hydration and rest usually help |
| Uncommon (0.1–1%) | Palpitations, anxiety, tremor, increased sweating | If persistent or troubling, contact doctor |
| Rare (<0.1%) | Priapism (prolonged erection), fainting, severe allergic reaction, sudden hearing/vision loss | Stop immediately; seek urgent medical care |
Key warnings: Never take with nitrate medications. Use with caution in those with cardiovascular, renal, liver, or psychiatric conditions.
Guidelines for Proper Use – Australia-Specific Advice
- Only use as prescribed by your Australian healthcare practitioner.
- Purchase from a licensed Australian pharmacy; beware online “rogue” sellers or unregulated sources.
- Store tablets below 25°C. Do not use past expiry date.
- Do not combine with other erectile or antidepressant medications unless directed by your doctor.
- Driving and Safety: If you feel dizzy or lightheaded, do not drive or operate machinery.
- If you have chest pain, vision loss, or a prolonged painful erection (>4 hours), seek emergency help.
- Sydney, Melbourne, Brisbane clinics can offer in-person or telehealth review for patients requiring guidance or having side effects.
Alternative Treatment Options
- Other PDE5 Inhibitors: Tadalafil (Cialis), Vardenafil (Levitra)—offer different duration of action (Cialis: up to 36 hours). Not combined with dapoxetine as a fixed-dose combo.
- Dapoxetine Alone: Available in Australia for men with predominant premature ejaculation (60mg as needed).
- Traditional SSRIs (off-label): Paroxetine, Sertraline (daily dose); slower onset, more side effects.
- Psychosexual Counselling: Via GP or sexual health specialist; no side effects, focuses on psychological contributors.
- Vacuum Devices or Injections: For ED not responsive to tablets; require specialist supervision.
Relative Benefits & Drawbacks: Sildenafil/Dapoxetine combo offers rapid, dual-action benefit for men with overlapping ED and PE, but is off-label in Australia and may be costlier than single agents.
Legal, Registration, and Reimbursement Status in Australia
- Viagra (Sildenafil) and Priligy (Dapoxetine) are approved as separate products by the Therapeutic Goods Administration (TGA).
- The fixed-dose combination (Viagra with Dapoxetine) does not have TGA approval; off-label prescribing is possible but restricted to doctors with expertise.
- Prescription Requirement: Strictly prescription-only through registered medical professionals; no legal over-the-counter sales.
- Reimbursement: Not listed on the Pharmaceutical Benefits Scheme (PBS); typically a private prescription, with cost payable by the patient.
- Purchases from outside Australia or unofficial websites may breach federal importation laws—risk of fines and unsafe ingredients.
Latest Research and Clinical Guidance (2022–2025)
- Recent meta-analyses (J Sex Med, 2023) show improved outcomes and patient satisfaction for men with both ED and PE who use combination therapy.
- Australian and international guidelines (Urology Society of Australia and New Zealand, EAU 2024) recommend individualized therapy—always under physician supervision.
- Data suggest higher rates of side effects with combined use, underscoring need for clinical assessment and monitoring (see studies).
- Ongoing trials are examining novel agents and improved fixed-dose combinations for dual sexual dysfunction (ClinicalTrials.gov; ANZCTR.gov.au).
Availability and Delivery in Australia
| Pack Size | Typical Price Range (AUD) | Delivery Time (Metro Areas) |
|---|---|---|
| 4 tablets | $35–$65 | 1–2 business days (Sydney, Melbourne, Brisbane) |
| 8 tablets | $65–$120 | 1–3 business days (capital cities) |
| 16 tablets | $110–$200 | Up to 3–4 business days (regional/rural) |
- Australia pharmacies only dispense on valid prescription; pharmacist counselling is required for all first-time users.
- Express delivery and telehealth script options available in major cities.
Frequently Asked Questions (FAQ)
- Can I buy Viagra with Dapoxetine over the counter in Australia?
No. It requires a prescription. Only purchase from reputable, TGA-registered pharmacies. Avoid online offers without proper medical review—they may be illegal and unsafe. - How soon does the combination tablet work?
Effects generally begin within 30–60 minutes, with peak benefits at 1–2 hours; this varies by individual and whether taken with or without food. - Will I be able to have multiple sexual activities after taking one tablet?
The active window for erections is typically 4–6 hours (Sildenafil); premature ejaculation control may persist for up to 3 hours (Dapoxetine). - Is it safe to drink alcohol with my dose?
Combining with alcohol increases the risk of dizziness and fainting; it is safest to avoid alcohol or keep intake to a minimum. - Is this treatment covered by the PBS or Medicare?
No, not at present. All such medications are paid for privately on prescription in Australia. Ask your pharmacist for an up-to-date price.
Please contact your GP, urologist, or pharmacist if you have further questions about Viagra with Dapoxetine or managing male sexual health in Australia.
