No -- not related: No, there is no comparison between vyvanse (lisdexamfetamine) and pituitrophin pmg. http://tinyurl.com/n4fk9ev vyvanse (lisdexamfetamine) is a stimulant. This other substance appears to be an extract made from ground-up cow pituitary glands. This is in no way a replacement for vyvanse (lisdexamfetamine) or any other stimulant.
Answered 12/28/2013
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