Stendra and Spedra are commercial names of the chemical substance, Avanafil. The brand is owned by VIVUS Inc. that patented drugs in 2013.
Avanafil is a substance that belongs to the same pharmacological group of PDE-5 inhibitors as Sildenafil (the famous “Viagra”) and Tadalafil (Cialis) – drugs generated to increase potency. Therefore, they have the same effect: actively enhance the relaxing effect of nitric oxide in smooth muscles of corpus cavernosum and increases blood flow to the penis.
Avanafil is one of the latest solutions in the pharmaceutical industry. It is the most powerful and quick-acting drug for potency boost known today, however the price is too high at the moment.
However, it is worth it. The main advantage of Avanafil is its effect being achieved within 15 minutes after administration – a record among PDE-5 inhibitors (this is true for doses of 100 and 200 mg, a 50 mg dose effect is achieved much later). Avanafil is also known for possibility of being taken with moderate amounts of alcohol, up to three drinks, as it is clearly stated on the producer's website. Finally, Avanafil has the shortest list of side effects as well as low degree of their severity inherent to PDE-5 inhibitors. Sunrise Remedies with its famous Avana is the most famous producer of generic Stendra (or generic Spedra). By ordering generic Stendra online, you will most likely get exactly Avana.
Avana are red triangular shape tablets with rounded edges, 4 in a blister, available in dosages of 50, 100 and 200 mg. The price of generic Stendra (let alone the brand Stendra) may seem too high (especially compared to generic Viagra), but, let us emphasize once again, it is worth it. Try the smallest package first. In case the result exceeds you expectations, buy a bigger one! Usually online pharmacies give discounts for the second and further orders, so the final price will be even lower.