<prompt> Triamterene causes:HypokalemiaMuscle crampsDecrease in urea levelBetter glucose tolerance  <response>: Inhibitors of renal epithelial sodium channel - Triamterene, Amiloride Side effects are - nausea, vomiting, rash, headache, dizziness, constipation, low blood pressure, muscle cramps, hypersensitivity, pancreatitis, and jaundice, electrolyte disturbances Essentials of Medical Pharmacology, K.D Tripathi,6th edition, page 571 