Cozaar Side Effects
Generic name: losartan
Medically reviewed by Drugs.com. Last updated on Oct 26, 2022.
Note: This document contains side effect information about losartan. Some dosage forms listed on this page may not apply to the brand name Cozaar.
Common side effects of Cozaar include: asthenia, chest pain, diarrhea, fatigue, and hypoglycemia. Other side effects include: hyperkalemia, hypotension, and orthostatic hypotension. Continue reading for a comprehensive list of adverse effects.
Applies to losartan: oral extemporaneous suspension, oral tablets.
Side effects include:
Patients with diabetic nephropathy: Urinary tract infection, diarrhea, anemia, asthenia/fatigue, hypoglycemia, chest pain, cough, bronchitis, diabetic vascular disease, influenza-like disease, cataracts, cellulitis, hyperkalemia, hypotension, muscular weakness, sinusitis, gastritis, hypoesthesia, infection, knee pain, and leg pain.
For Healthcare Professionals
Applies to losartan: oral tablet.
The most common adverse reactions were upper respiratory infection and dizziness.[Ref]
Common (1% to 10%): Nasal congestion, upper respiratory infection, sinusitis, pharyngitis, cough, sinus disorder
Uncommon (0.1% to 1%): Dyspnea
Frequency not reported: Bronchitis, pharyngeal discomfort, epistaxis, rhinitis, respiratory congestion[Ref]
Uncommon (0.1% to 1%): Obstipation, vomiting
Common (1% to 10%): Muscle cramp, back pain, leg pain, myalgia
Postmarketing reports: Rhabdomyolysis[Ref]
Uncommon (0.1% to 1%): Somnolence
Common (1% to 10%): Asthenia/fatigue, edema/swelling, chest pain
Frequency not reported: Facial edema, fever, orthostatic effects
Postmarketing reports: Malaise[Ref]
Common (1% to 10%): Hyperkalemia, serum potassium increased, hypoglycemia
Common (1% to 10%): Orthostatic hypotension
Uncommon (0.1% to 1%): Palpitation, angina pectoris
Rare (less than 0.1%): Atrial fibrillation
Common (1% to 10%): Insomnia
Uncommon (0.1% to 1%): Sleep disorder
Common (1% to 10%): Anemia
Rare (less than 0.1%): Hemolysis
Rare (less than 0.1%): Angioedema, superficial peeling of palms
Postmarketing reports: Erythroderma[Ref]
Rare (less than 0.1%): ALT increased
Frequency not reported: Flu-like symptoms
Postmarketing reports: Anaphylactic reactions, hypersensitivity reactions[Ref]
Frequently asked questions
- Can you eat bananas when taking losartan?
- Does Losartan block the receptor used by the Coronavirus?
- Losartan vs Valsartan - What's the difference between them?
- Does losartan cause rapid heart rate, irregular heartbeat or low blood pressure?
- Are losartan and losartan potassium the same or different drugs?
More about Cozaar (losartan)
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- Drug class: angiotensin receptor blockers
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Related treatment guides
1. Product Information. Cozaar (losartan). Merck & Co., Inc. 2001.
2. Cerner Multum, Inc. UK Summary of Product Characteristics.
3. Cerner Multum, Inc. Australian Product Information.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Some side effects may not be reported. You may report them to the FDA.