The drug, ATryn, is a protein replacement treatment for people afflicted with a rare blood-clotting disorder called hereditary antithrombin deficiency, who are at risk of thrombosis. It is made by ...

Icariin also inhibits PDE5 (phosphodiesterase type 5), which is how drugs like Viagra or Cialis work. It's possible horny goat weed could have similar effects as PDE-5 inhibitors, but one large ...