Quote Originally Posted by FrostyPaws View Post
Lasix will deplete your dog of potassium. If given IV, it will also decrease your dogs blood pressure.
Lasix given in pill or IV form has the same effect. The only difference is the speed at which the medication works and the IV form would have side effects such as lowering BP depending on how much water is taken off. Lasix will deplete potassium and if you are on a daily regimen then potassium supplements are recommended. Most important is the dosage (milligrams) given. The higher dose given the more water it will take off. A one time dose of Lasix should not affect the potassium level that much.