Hello, i read your answer carefully and understood your concern. Evion LC is a food supplement, which contains as its ingredients levocarnithine and vitamins. It s used in different pathologies that involve cell damage (as the carnitine slow down the process) or carnitine deficiency. It doesn t have any known effect on blood thining (if by this term you mean antiagreggation) but sometime it can cause bleeding. Regarding the symptoms in your calf, i think that s the main reason the doctor prescribed it to you, since it s used for pains caused by narrowed arteries. I hope i have been of help. I m at your disposal for further questions.