A fascinating study in Health Affairs last year by a father-daughter pair of public policy researchers found that Medicare prescriptions for things like painkillers, antidepressants and anti-anxiety medications dropped sharply in states that introduced a medical marijuana program.

The implication? Offered the choice between taking medication prescribed by a doctor and self-medicating with pot, many older patients opted for the latter.
Read Full Article at: Cannabist Study: National medical marijuana laws would save lives — and a billion taxpayer dollars