A newer form of the medicine that dissolves on the tongue might work faster than the pill that you swallow. What’s the best treatment? However, Viagra Connect is only available over the counter in the licensed strength of 50mg. Is my erectile dysfunction most likely temporary or chronic? An inherited eye disease that affects the retina.Oral medications are a successful erectile dysfunction treatment for many men. They include: Sildenafil (Viagra) Tadalafil (Adcirca, Cialis) Vardenafil (Levitra, Staxyn) Avanafil (Stendra) All four medications enhance the effects of nitric oxide — a natural chemical . A prescription from your GP may allow you to get Viagra (or unbranded Sildenafil) for a lower cost than over-the-counter Viagra Connect. It’s also advisable to speak to your . Sildenafil (Viagra brand) only works following sexual stimulation. It works within 30 to 60 minutes, but may be taken up to four hours before sexual activity. test1.ru .