These 15 conditions account for 68% of total drug spend

Here are the top 15 most commonly treated conditions, which drive 68 percent of total drug expenses, according to a report from Anthem's pharmacy benefit manager IngenioRx:

1. Inflammatory/autoimmune conditions — 14 percent
2. Cancer — 13 percent
3. Diabetes — 8 percent
4. Multiple sclerosis — 5 percent
5. HIV — 4 percent
6. Hypertension/heart disease — 3 percent
7. Asthma — 3 percent
8. Attention deficit disorders — 3 percent
9. Depression — 3 percent
10. Contraception — 2 percent
11. High cholesterol — 2 percent
12. Inflammatory pain — 2 percent
13. Blood cell deficiency — 2 percent
14. Psychiatric disorders — 2 percent
15. Immune deficiency — 2 percent

All other commonly treated conditions — 32 percent

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