Basically kamrath is for age groups , not for less than 18 years, for longevity, strength, stamina, and complete power house( as it is a herbal preparation will take atleast 30 days to show effects). Usage- take 1 capsule after dinner 1 hr before bed time with milk or water…. WHO SHOULD NOT USE KAMRATH CAPSULES- People taking other medicines, including hormonal contraceptives, such as the combined pill. people with serious health conditions, such as liver or kidney disease. people who are going to have surgery. People with renal in sufficiency. People with cardiac arythmias.   Changes may be seen in body- Indigestion,Nausea,Itching,Reddening of the face.