Calcium / Vitamin D Dosage Guide with Precautions - Drugs.com

May 31, 2019 · Usual Adult Dose for Osteoporosis. Calcium - General Range: 1000 mg to 1300 mg daily Vitamin D - General Range: 200 international units to 800 international units daily Note: While much larger vitamin D dosages have been recommended as a single agent, many calcium-vitamin D combination supplements will contain approximately 200 international units...6.2/10…