Thursday's letters: Pot users need to know medical risks

My doctor recently referred me to a medicinal-cannabis clinic to see if there was any product that could alleviate my chronic osteoarthritis pain in my knees and shoulders.
As I am on a daily dose of a prescribed blood thinner to treat a heart condition, I cannot take any ibuprofen products for pain due to the risk of them incurring a gastric bleed as a result of my blood thinner. When I outlined my arthritic-pain situation to the doctor at the medicinal-cannabis clinic, he asked for my medicati