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Generic Name: nebivolol and valsartan (ne BIV oh lol and val SAR tan)
Brand Names: Byvalson
Byvalson (nebivolol and valsartan) is used to treat high blood pressure (hypertension). Includes Byvalson side effects, interactions and indications.
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Drug Information:
Byvalson contains a combination of nebivolol and valsartan. Nebivolol is a beta-blocker that affects the heart and circulation (blood flow through arteries and veins). Valsartan is an angiotensin II receptor antagonist. Valsartan keeps blood vessels from narrowing, which lowers blood pressure and improves blood flow. Byvalson is used to treat high blood pressure (hypertension) in adults. Lowering blood pressure may lower your risk of a stroke or heart attack. Byvalson is sometimes given together with other blood pressure medications. Learn more

Byvalson Side Effects

Byvalson Side Effects

Note: This document contains side effect information about nebivolol / valsartan. Some of the dosage forms listed on this page may not apply to the brand name Byvalson.

In Summary

More frequent side effects include: increased serum potassium. See below for a comprehensive list of adverse effects.

For the Consumer

Applies to nebivolol/valsartan: oral tablet


Oral route (Tablet)

When pregnancy is detected, discontinue nebivolol / valsartan as soon as possible. Drugs that act directly on the renin-angiotensin system can cause injury and death to the developing fetus.

Along with its needed effects, nebivolol / valsartan may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking nebivolol / valsartan:

Incidence not known

  • Abdominal or stomach pain
  • blurred vision
  • chest pain
  • confusion
  • decreased urine output
  • difficult breathing
  • dilated neck veins
  • dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  • extreme fatigue
  • irregular breathing
  • irregular heartbeat
  • nausea or vomiting
  • nervousness
  • numbness or tingling in the hands, feet, or lips
  • sweating
  • swelling of the face, fingers, feet, or lower legs
  • tightness in the chest
  • troubled breathing
  • unusual tiredness or weakness
  • weakness or heaviness of the legs
  • weight gain

For Healthcare Professionals

Applies to nebivolol / valsartan: oral tablet


Frequency not reported: Hypotension


Postmarketing reports: Atrioventricular block (both second and third degree), myocardial infarction, Raynaud's phenomenon, peripheral ischemia/claudication


Postmarketing reports: Vasculitis


Rare (0.01% to 0.1%): Angioedema


Postmarketing reports: Pruritus, psoriasis, various rashes, various skin disorders, urticaria, allergic vasculitis


Postmarketing reports: Angioedema, alopecia, bullous dermatitis


Postmarketing reports: Vomiting


Postmarketing reports: Erectile dysfunction


Postmarketing reports: Thrombocytopenia


Postmarketing reports: Thrombocytopenia



Postmarketing reports: Abnormal hepatic function (including increased AST, ALT, and bilirubin)


Postmarketing reports: Elevated liver enzymes, hepatitis


Postmarketing reports: Angioedema


Common (1% to 10%): Hyperkalemia


Postmarketing reports: Hyperkalemia

Nervous system

Postmarketing reports: Somnolence, syncope, vertigo


Postmarketing reports: Acute renal failure


Postmarketing reports: Impaired renal function, renal failure



Postmarketing reports: Acute pulmonary edema, bronchospasm

Editorial References and Review

Medically reviewed by BestRx Medical Team Last updated on 1/1/2020.

Source: Drugs.com Byvalson