In India you do get pills over the counter. If you are familiar with the chemist he will definitely give you calcium pills, may be a few strong pills might not be easy to procure without prescription. My grandma always told me to have foods rich in calcium rather than take pills. The body can absorb natural foods which are high in calcium like milk, cheese, yoghurt, spinach, peas and almonds a lot more easily than taking supplements and pills. Taking too much calcium pills is not good as it can build up calcium deposits. Always check with your doctor if you need any supplement, be it calcium or iron.