Short answer: All four are room-temperature tablets. Viagra and Cialis: 77°F (25°C), excursions 59-86°F (15-30°C). Stendra: 68-77°F (20-25°C), excursions 59-86°F, and protect from light. Generic vardenafil (Teva): 68-77°F (20-25°C), with no excursion range stated. None of the labels gives a fridge instruction. Sources: each label, section 16, and the patient leaflets.
Viagra (sildenafil), Cialis (tadalafil), Stendra (avanafil) and vardenafil are PDE5 inhibitor tablets for erectile dysfunction. This page uses the current Teva vardenafil label; other generics carry their own.
| Product | Section 16 | Patient leaflet | Packaging |
|---|---|---|---|
| Viagra | 25°C (77°F); excursions 15-30°C (59-86°F) | Room temperature 68-77°F (20-25°C) | Bottles of 30 (all strengths) and 100 (50 and 100 mg); dispensed in tight, child-resistant containers |
| Cialis | 25°C (77°F); excursions 15-30°C (59-86°F) | Room temperature 59-86°F (15-30°C) | Bottles of 30 |
| Stendra | 20-25°C (68-77°F); excursions 15-30°C (59-86°F). Protect from light. | 68-77°F (20-25°C). Keep out of the light. | Bottles of 30 |
| Vardenafil (Teva) | 20-25°C (68-77°F); excursions not stated | 68-77°F (20-25°C) | Bottles of 30; dispensed in a tight container with a child-resistant closure (as required) |
Stendra is the only one of the four with a light rule: section 16 says “Protect from light” and the patient leaflet says “Keep STENDRA out of the light.” The Cialis leaflet gives the wider 59-86°F (15-30°C) range rather than a 77°F target.
The labels do not mention pill cases or wallets. They give only the temperature (and, for Stendra, light), so the same ranges apply wherever you keep a tablet. A parked car in summer can pass 86°F (30°C) quickly.
For timing and doses, see the Viagra, Cialis, Stendra and vardenafil dosing schedules, and Cialis daily vs as needed. Comparisons: tadalafil vs sildenafil, Stendra vs Viagra and vardenafil vs sildenafil.
No ice pack is needed. Keep the tablets in the labeled pharmacy bottle in your carry-on, within 59-86°F (15-30°C) where the label allows excursions, and out of a hot car. Keep Stendra out of strong light.