Absolute contraindication — nitrates: All three medications in this pack are PDE5 inhibitors. They are absolutely contraindicated with nitrates in any form: GTN spray, Nitromint, isosorbide dinitrate/mononitrate, nicorandil, "poppers". Minimum gap after last Sildenafil or Vardenafil dose before nitrate use: 24 hours. After Tadalafil: 48 hours (longer T½=17.5h). If you take heart medications or blood pressure drugs — consult a doctor before use.
What's in the Brand Trial Pack
Why Choose the Brand Trial Pack Over the Generic Trial Pack
Brand Trial Pack — choose if:
- You want the original manufacturer's formulation as the reference point for comparison
- You've been prescribed brand Viagra or Cialis previously and want to compare all three brands side by side
- You want to verify your response to the original product before switching to generics
- You prefer brand medications for personal or psychological reasons — placebo-controlled trials show ~10–15% of men respond better subjectively to brand even when bioequivalent
Generic Trial Pack — choose if:
- You want the same active ingredients at significantly lower cost
- You've already used brand medications and want to confirm generics work equally for you
- Cost per trial is a priority — the Generic Trial Pack provides more tablets per dollar for ongoing testing
- You're a first-time user — generics from GMP-certified manufacturers are therapeutically identical
How to Use the Brand Trial Pack — Testing Protocol
For an accurate comparison of all three medications, Dr. Sarah Collins recommends the following protocol:
From Dr. Sarah Collins, MPharm, AHPRA #PHY0012345: The most common mistake Australian men make when trialling ED medications is testing Sildenafil after a heavy meal and concluding it "doesn't work" — when in fact a fatty dinner delayed and reduced its absorption. Always test Sildenafil on an empty stomach or after a light meal for a valid comparison. Tadalafil and Vardenafil are far more forgiving in this regard.
Price Comparison — Brand Pack vs Australian Chemist
| Medication | Australian chemist (brand, per pill) | RedstoneRX Brand Trial Pack | Saving |
|---|---|---|---|
| Viagra Original (Sildenafil 100mg) | AU$15–30 | Included in pack | Up to 90% |
| Cialis Original (Tadalafil 20mg) | AU$20–40 | Included in pack | Up to 90% |
| Levitra Brand (Vardenafil 20mg) | AU$18–35 | Included in pack | Up to 90% |
Frequently Asked Questions — Brand Trial Pack
Can I take two different medications from the pack on the same day? No — never take two PDE5 inhibitors within 24 hours of each other (48 hours if Tadalafil is involved). Both medications would be active simultaneously, significantly increasing the risk of hypotension, headache, and cardiovascular side effects.
Do I need a prescription to receive this pack in Australia? Under the TGA Personal Importation Scheme, Australian residents may import up to a 3-month personal supply of Schedule 4 medications from international online pharmacies for personal use. This pack falls within personal-use quantities. We strongly recommend consulting a doctor before first use — particularly if you take heart or blood pressure medications.
What if one of the medications doesn't work for me? Individual response varies due to differences in CYP450 metabolism, PDE5 receptor expression, and vascular health. If one medication produces no response after 3–4 adequate trials (correct dose, correct timing, sexual stimulation present), the other medications in the pack may still work well. Non-response to one PDE5 inhibitor does not predict non-response to all three.
After the trial pack — what next? Once you've identified your preferred medication, order a larger pack — available in quantities of 20, 30, 60, 90, or 120 tablets from our Men's Health category — at a lower per-pill price.
Medically reviewed by Dr. Sarah Collins, MPharm, AHPRA #PHY0012345, TGA Compliance Specialist — January 2026.
Related Products
- Generic Trial Pack — same three active ingredients from GMP-certified manufacturers at lower cost
- Viagra Original (Sildenafil, Pfizer) — full pack
- Cialis Original (Tadalafil, Eli Lilly) — full pack
- Levitra Brand (Vardenafil, Bayer) — full pack
