Sildenafil belongs to a group of medicines called phosphodiesterase 5 PDE5 inhibitors. Retrieved 6 October Buying any prescription-only medication is also illegal. It is commonly manufactured in India and sold online without a prescription, making it a discreet and easy choice for men seeking help. It is thought that this reduced sales over the Internet and was safer as males could be referred for medical advice if appropriate. To provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your email and site usage information with other information we have about you. Kamagra is an over the counter product.Kamagra mg Tablet is a prescription medicine used to treat erectile dysfunction (impotence) in men. It works by increasing blood flow to the penis. This helps .  · a light-headed feeling, like you might pass out. Common sildenafil side effects may include: flushing (warmth, redness, or tingly feeling); headache, dizziness; . Kamagra is a pharmaceutical marvel meticulously crafted to combat erectile dysfunction (ED), a condition that affects millions of men globally. It belongs to a class of .