Use the calcium carbonate powder as directed. Allow the powder to dissolve completely, then consume the mixture. Shake the oral suspension (liquid) well just before you measure a dose. Measure the liquid with a special dose-measuring spoon or medicine cup, not with a regular this web page table spoon. If you do not have a dose-measuring device, ask your pharmacist for one. Store at room temperature away from moisture and heat. If you missed a dose- take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose. Usual adult dose for osteoporosis:.