Forum: 28-day vs 30-day pack sizes… WHY?

"Over the last few week, I have had more than a few patients ask me why some medication comes in a 30-day pack e.g. Atacand & Crestor, but others they are on come in only a 28-day pack e.g. Micardis, Plavix & Cymbalta. I simply answer that I don’t know why! "Could some learned colleague tell