Caverta is a well known medication which uses Sildenafil Citrate which is also the known ingredient used in the branded Viagra. Caverta is the cost effective and affordable to the common man. This drug is always available in our stock. The effect of the pill lasts for 4 to 6 hours which is a sufficient amount of time to perform the sexual activity satisfactorily. This is one effective pill that has proved effective and has given effective results.