Congestive Heart Failure Home > Metolazone

Metolazone is commonly prescribed for the treatment of fluid retention and high blood pressure. By increasing the amount of salt and water the kidneys remove from the blood and decreasing blood volume, the medication can effectively control these conditions. Prior to taking metolazone, tell your healthcare provider about any medical conditions you have and any medications you are taking.

What Is Metolazone?

Metolazone (Zaroxolyn®) is a prescription medicine that is used to treat high blood pressure and fluid retention. It is part of a class of medicines known as diuretics.
Specific uses for this medication include:
(Click What Is Metolazone Used For? for more information, including possible off-label uses.)

Metolazone Side Effects

As with any medicine, side effects are possible with metolazone. However, not everyone who takes the drug will experience side effects. In fact, most people tolerate it quite well. If side effects occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider. Serious side effects are less common.
A few of the possible side effects include:
(Click Side Effects of Metolazone to learn more, including potentially serious side effects you should report immediately to your healthcare provider.)
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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