Background Hyperparathyroidism (HPT) is classified into primary HPT (PHPT). secondary HPT (SHPT). tertiary HPT (THPT). and pseudohyperparathyroidism. https://www.bekindtopets.com/super-pick-Rx-Quadruple-Topical-Ointment-Quadritrop-for-Dogs-Cats-30-mL-super-grab/