What typ of pill has a heart on it that diabetics take?

Do you know of any pills that a diabetic would that has a heart on one side of it. Please let me know; I know somone who has some pills with a heart on it and it supposed to be for his diabeties but the police think it is  the drug extacy and is trying to charge him with narcartics and I know i picke up a pesrcription for him with a bottle full of pills that had  hearts on them with other perscriptions.