levitra에 대한 자세한 정보
Probably Viagra’s closest cousin, Levitra can take a solid hour to kick in and lasts as much as 4 hrs. It’s about as productive as sildenafil when it comes to elevating your sail, while scientific tests have revealed Levitra is more powerful and even more selective than sildenafil at inhibiting PDE-five, this means the drug does a greater work