Premarin tablet is also used to prevent osteoporosis (thinning and weakening of bone) in postmenopausal women, who are at high risk of fractures and can not take other preventive medicines for osteoporosis. It can be taken with or without food, but remember to take it at a fixed time each day for better efficacy. The dose and duration will be decided by your doctor so that you get the right amount to control your symptoms.
The treatment should not be stopped abruptly without consulting your doctor as this may affect the potency of this medicine.
Uses

Hormone replacement therapy
Prevention of Post menopausal osteoporosis