Side Effects of Losartan-Hydrochlorothiazide

The most common side effects of losartan-hydrochlorothiazide include low levels of potassium in the blood; infection, such as the common cold or flu; and dizziness. There are also some more serious and rare side effects of losartan-hydrochlorothiazide, including an unexplained skin rash, difficulty breathing or swallowing, and impotence.

An Overview of Losartan-Hydrochlorothiazide Side Effects

As with any medicine, there are possible side effects associated with losartan-hydrochlorothiazide (Hyzaar®). However, not everyone who takes losartan-hydrochlorothiazide will experience side effects. In fact, most people tolerate losartan-hydrochlorothiazide well. When side effects do occur, in many cases they are minor, meaning they require no treatment or are easily treated by you or a healthcare provider. Serious side effects can occur, but are less common.
 
(The losartan-hydrochlorothiazide side effects discussed below are not a complete list of side effects reported with losartan-hydrochlorothiazide. Your healthcare provider can discuss a more complete list of losartan-hydrochlorothiazide side effects with you.)
 

Common Losartan-Hydrochlorothiazide Side Effects

Thousands of people worldwide who were taking losartan-hydrochlorothiazide have been evaluated in extensive clinical trials.
 In these studies, side effects are always documented and compared to side effects that occur in a similar group of people not taking the medicine. Based on these studies, the most common losartan-hydrochlorothiazide side effects include:
 
  • Low potassium in the blood -- in up to 6.7 percent of people
  • Infection, such as the common cold or flu -- up to 6.1 percent
  • Dizziness -- in up to 5.7 percent
  • Cough -- up to 2.6 percent
  • Back pain -- in up to 2.1 percent.
     
(Side Effects of Losartan-Hydrochlorothiazide Continued: Page 2)
Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;
Other Articles in This eMedTV Presentation