GEMcal -Kit is a combination medicine used in the treatment of osteoporosis. It prevents bone loss and makes the bones stronger. This way it helps prevent bone fractures. GEMcal -Kit is best taken on an empty stomach. You should take it regularly at a fixed time each day. Taking it at the same time every day will help you remember to take it. It may take several days to get the full benefit of this drug. Do not stop taking the medicine until your doctor tells you it is right to stop. This medicine may only be part of a treatment program that may also include changes to your diet and taking other medicines and vitamin supplements.The most common side effects of GEMcal -Kit include headache, back pain, musculoskeletal (bone, muscle, or joint) pain, indigestion, heartburn, and diarrhea. These are generally mild and usually resolve on their own. If they do not go away or get worse, you should let your doctor know. Your doctor may be able to suggest ways of preventing or reducing the side effects.Before using GEMcal -Kit, let your doctor know if you have any medical conditions or disorders. To make sure the medicine is safe for you, let your doctor know all the other medicines you are taking. You may need frequent medical tests to check your kidney function and mineral levels while on treatment with this medicine. You should avoid consuming large amounts of alcohol, as it can cause bone loss. Pregnant and breastfeeding women should consult their doctors before using this medicine.