Hyzaar vs. Coreg

Are Coreg and Hyzaar the Same Thing?

Hyzaar (losartan potassium-hydrochlorothiazide) and Coreg (carvedilol) are drugs used to treat high blood pressure (hypertension).

Hyzaar and Coreg are in different drug classes. Hyzaar is a combination of an angiotensin II receptor antagonist and a thiazide diuretic (water pill) that is also used to lower the risk of stroke in certain people with heart disease.


How to Lower Blood Pressure: Exercise Tips See Slideshow

What Are Possible Side Effects of Hyzaar?

Hyzaar is available in generic form. Side effects of Hyzaar include:

What Are Possible Side Effects of Coreg?

Common side effects of Coreg include:

Contact your doctor if you experience serious side effects of Coreg including

What is Hyzaar?

Hyzaar contains 2 prescription medicines, an angiotensin receptor blocker (ARB) and a diuretic (water pill). It is used to:

  • lower high blood pressure (hypertension). HYZAAR is not usually the first medicine used to treat high blood pressure.
  • lower the chance of stroke in patients with high blood pressure and a heart problem called left ventricular hypertrophy (LVH). HYZAAR may not help Black patients with this problem.

What is Coreg?

Coreg is a prescription medicine that belongs to a group of medicines called “beta-blockers”. Coreg is used, often with other medicines, for the following conditions:

  • to treat patients with certain types of heart failure
  • to treat patients who had a heart attack that worsened how well the heart pumps
  • to treat patients with high blood pressure (hypertension)
  • Coreg is not approved for use in children under 18 years of age.

What Drugs Interact With Hyzaar?

Hyzaar and certain other medicines may interact with each other. Especially tell your doctor if you are taking:

  • potassium supplements
  • salt substitutes containing potassium
  • water pills (diuretics)
  • lithium (a medicine used to treat a certain kind of depression)
  • medicines used to treat pain and arthritis, called non-steroidal anti-inflammatory drugs (NSAIDs),
  • including COX-2 inhibitors
  • other medicines to reduce blood pressure.

What Drugs Interact With Coreg?

Coreg may interact with other blood pressure medications, insulin or oral diabetes medications, rifampin, or narcotics.


Salt and sodium are the same. See Answer

How Should Hyzaar Be Taken?

  • Take Hyzaar exactly as prescribed by your doctor. Your doctor may change your dose if needed.
  • Hyzaar can be taken with or without food.
  • If you miss a dose, take it as soon as you remember. If it is close to your next dose, do not take the missed dose. Just take the next dose at your regular time.
  • If you take too much Hyzaar, call your doctor or Poison Control Center, or go to the nearest hospital emergency room right away.
  • Your doctor may do blood tests from time to time while you are taking Hyzaar.

How Should Coreg Be Taken?

It is important for you to take your medicine every day as directed by your doctor. If you stop taking Coreg suddenly, you could have chest pain and/or a heart attack. If your doctor decides that you should stop taking Coreg, your doctor may slowly lower your dose over a period of time before stopping it completely.

  • Take Coreg exactly as prescribed. Your doctor will tell you how many tablets to take and how often. In order to minimize possible side effects, your doctor might begin with a low dose and then slowly increase the dose.
  • Do not stop taking Coreg and do not change the amount of Coreg you take without talking to your doctor.
  • Tell your doctor if you gain weight or have trouble breathing while taking Coreg.
  • Take Coreg with food.
  • If you miss a dose of Coreg, take your dose as soon as you remember, unless it is time to take your next dose. Take your next dose at the usual time. Do not take 2 doses at the same time.
  • If you take too much Coreg, call your doctor or poison control center right away.

All drug information provided on RxList.com is sourced directly from drug monographs published by the U.S. Food and Drug Administration (FDA).

Any drug information published on RxList.com regarding general drug information, drug side effects, drug usage, dosage, and more are sourced from the original drug documentation found in its FDA drug monograph.

Drug information found in the drug comparisons published on RxList.com is primarily sourced from the FDA drug information. The drug comparison information found in this article does not contain any data from clinical trials with human participants or animals performed by any of the drug manufacturers comparing the drugs.

The drug comparisons information provided does not cover every potential use, warning, drug interaction, side effect, or adverse or allergic reaction. RxList.com assumes no responsibility for any healthcare administered to a person based on the information found on this site.

As drug information can and will change at any time, RxList.com makes every effort to update its drug information. Due to the time-sensitive nature of drug information, RxList.com makes no guarantees that the information provided is the most current.

Any missing drug warnings or information does not in any way guarantee the safety, effectiveness, or the lack of adverse effects of any drug. The drug information provided is intended for reference only and should not be used as a substitute for medical advice.

If you have specific questions regarding a drug’s safety, side effects, usage, warnings, etc., you should contact your doctor or pharmacist, or refer to the individual drug monograph details found on the FDA.gov or RxList.com websites for more information.

You may also report negative side effects of prescription drugs to the FDA by visiting the FDA MedWatch website or calling 1-800-FDA-1088.


RxList. Hyzaar Product Monograph.
RxList. Coreg Product Monograph.

Health Solutions From Our Sponsors