Yesterday I saw on Dr.Oz that if you have aches and pains ,which I do ,go to the health food store and get tart cherry juice. It has been proven to help the pain. Well I got a quart of Fast Fruit. It is $19.99 a quart but you only mix 2 teaspoons a day in 7 ounces of water. I will let you know how it works. I don't know if the shoulder, knee, etc. pain is from my 7 treatments of Rituxin, but I have high hopes for the cherry juice!!!