If you buy through links on this page, we may earn a small commission. There is no hiding the fact that the price of Kamagra is significantly lower than that of Viagra. Viagra to Activate? These include Cialis Tadalafil , Spedra Avanafil , and Levitra Vardenafil , which are also PDE5 inhibitors that work in a similar way to sildenafil and are also available online in tablet form on prescription. Other than where Kamagra vs. · Viagra; Descriptions. Sildenafil is used to treat men who have erectile dysfunction (also called sexual impotence). Sildenafil belongs to a group of medicines . · Cialis vs Viagra – What’s the difference between them? Do you know these 11 amazing facts about Viagra? Is generic Viagra available in the U.S.? View more FAQ. Viagra is available in 3 doses of 25, 50, and mg doses or as single packet doses (5). Whereas, Kamagra comes in doses of 50 or mg for the tablet variant. Kamagra also has an oral jelly variant, which only comes in mg sachets. Typically, your first prescription would be for 50mg tablets and is changed depending See more.