My Husband Had An Aortic Valve Replacement And The Doctor

My husband had an aortic valve replacement and the doctor has him on a full strength aspirin a day. He can not take Plavix or other thinners. I read in another question that one of the doctors had advised a woman to take her husband off Stemcell-Maxum since he is taking a blood thinner. Should my husband take this product? He does bleed quite a lot from even a small scratch.