Penbutolol Sulfate (200 mg),
https://www.manchesterbeacon.org/shop/rw2-1500808-penbutolol-sulfate-200-mg-306242
https://www.manchesterbeacon.org/web/image/product.template/306242/image_1920?unique=0e83fa8
This Penbutolol is guaranteed a Sulfate with the use of (200 and directly supplied to your lab by Gentaur's warehouse.
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