Get your Health question answered in 3 easy steps
A Doctor will be with you shortly
Ask a Doctor Now
149 Doctors are Online

When taking a diuretic, do you need to take a potassium ?

when taking a diuretic, do you need to take a potassium supplement? my husband is taking a blood pressure medication and was put on lasix (a diuretic). does he need a potassium supplement?
Asked On : Wed, 16 Dec 2009
Answers:  1 Views:  538
Report Abuse
Share on Facebook
Share on Twitter
Share on Google+
Question is related to
Diseases and Conditions
  User's Response
Lasix is classified as a "loop diuretic". Loop diurectics work in the kidney to promote water loss into the urine, thereby decreasing pressure in the bloodstream (lowering BP). Here is the in-depth answer to your question: Before leaving the body, urine flows through tubules in the kidney that take things out and secrete things into the urine to be passed out of the body. In the area of the kidney known as the thick ascending loop of Henle, there is a transporter called the Na+/K+/2Cl- symporter (the sodium-potassium-chloride symporter). Its job is to take sodium and potassium back up out of the urine and to secrete chloride into it. When you take a loop diuretic such as Lasix, it blocks this transporter, causing more sodium and potassium to stay in the urine. The high sodium levels in the urine draw water out of the blood and into the urine, thus causing water to be passed out of the body. However, when you increase sodium excretion, you also increase potassium excretion. This is why people taking loop diuretics, and some other classes of diuretics, need to take potassium supplements. The side effects and risks of having low potassium include: muscle cramps, heart arrhythmias, constipation, nausea and vomitting, abdominal cramping, depression, and others. So the simple answer: yes, he probably should be on a diuretic for as long as he takes the diuretic. If he stops taking Lasix or takes a different type of diuretic, he may not need to take it any longer and should ask his pharmacist.
Answered: Wed, 16 Dec 2009
Disclaimer: These answers are for your information only and not intended to replace your relationship with your treating physician.
This is a short, free answer. For a more detailed, immediate answer, try our premium service [Sample answer]


Loading Online Doctors....
© Ebix, Inc. All Rights Reserved.
All the information, content and live chat provided on the site is intended to be for informational purposes only, and not a substitute for professional or medical advice. You should always speak with your doctor before you follow anything that you read on this website. Any health question asked on this site will be visible to the people who browse this site. Hence, the user assumes the responsibility not to divulge any personally identifiable information in the question. Use of this site is subject to our Terms & Conditions
Already Rated.
Your rating:

Ask a Doctor