Kalzin Sachet Sugar Free is used in the treatment of vitamin D deficiency and osteoporosis. It helps the body to absorb calcium. Calcium is essential for maintaining strong and healthy bones. it is used when your diet does not provide enough. Kalzin Sachet Sugar Free should be taken as directed by your doctor. It is best taken with or after food as this helps your body absorb it and you should take it regularly to get the most benefit. If you are using it to treat osteoporosis you will be prescribed other medicines as well. This medicine may be only part of a complete program of treatment that also includes making changes to your diet and taking calcium and vitamin supplements. Learn about the foods you should eat to make sure you get enough calcium and vitamin D in your diet. Kalzin Sachet Sugar Free has few side effects and none are common. If you take too much you may feel weakness, muscle pain, or have a metallic taste in your mouth. If experience any such side effects, speak with your doctor. They may be able to help you reduce or treat the symptoms. Before taking this medicine, tell your doctor if you have high levels of calcium in your blood or if you have any heart, kidney, or liver disease. Some other medicines can decrease the absorption of vitamin D3 so let your doctor know all other medicines you are taking to make sure you are safe. This medicine may help during pregnancy when your body needs more vitamin D but too much could harm your baby. Discuss with your doctor.