Head-to-head clinical analysis & difference comparison: details on mechanism of action, dosing, half-life, interactions, and maternal-fetal safety.
TEVETEN vs BYVALSON
Clinician-reviewed, head-to-head comparison of mechanism, dosing, pharmacokinetics, and safety profiles.
Last clinically reviewed: July 2026 · OpiCalc Medical Review Team
Selective angiotensin II receptor type 1 (AT1) antagonist, blocking the vasoconstrictor and aldosterone-secreting effects of angiotensin II.
Valsartan is an angiotensin II receptor blocker (ARB) that selectively binds to the AT1 receptor, inhibiting angiotensin II-mediated vasoconstriction and aldosterone secretion. It also reduces blood pressure and causes vasodilation.
Hypertension,Treatment of hypertension (alone or in combination with other antihypertensive agents)
FDA-approved for the treatment of hypertension, heart failure (NYHA class II-IV), and to reduce cardiovascular mortality in stable post-myocardial infarction patients with left ventricular dysfunction or failure.,Off-label uses include diabetic nephropathy, prevention of atrial fibrillation recurrence, and migraine prophylaxis.
400-800 mg orally once daily; can be divided twice daily if needed for adequate blood pressure control.
160 mg orally once daily.
Terminal elimination half-life is approximately 7-8 hours in patients with normal renal function, supporting once-daily dosing.
Terminal half-life 10-12 hours; allows once-daily dosing; extended in severe renal impairment (up to 20 hours)
Primarily metabolized by glucuronidation (UGT1A3, UGT2B7); minimal CYP450 metabolism.
Valsartan is primarily metabolized by CYP2C9 and minimally by CYP3A4. It undergoes glucuronidation via UGT1A3, UGT1A9, and UGT2B7. The major metabolite is inactive.
Renal (approximately 60% as unchanged drug) and biliary/fecal (approximately 40%).
Renal: 60% unchanged; Biliary/Fecal: 40% as metabolites; total clearance ~30 L/h
Approximately 99% bound to plasma proteins, primarily albumin.
95% bound primarily to albumin
Approximately 0.3 L/kg, indicating distribution mainly in extracellular fluid.
Vd 8-10 L/kg; suggests extensive extravascular distribution
Oral: approximately 15-20% due to extensive first-pass metabolism; absorption is not significantly affected by food.
Oral: 50% (range 40-60%); food reduces peak concentration but not AUC
Cr Cl 30-59 m L/min: no adjustment; Cr Cl <30 m L/min: 200-400 mg once daily; hemodialysis: not studied, use with caution.
No dosage adjustment required for GFR ≥30 m L/min; not recommended for GFR <30 m L/min.
No adjustment required for mild to moderate impairment; not studied in severe impairment (Child-Pugh C).
Contraindicated in severe hepatic impairment (Child-Pugh class C); no adjustment for mild to moderate impairment (Child-Pugh A or B).
Safety and efficacy not established in pediatric patients <18 years.
Safety and efficacy not established in pediatric patients.
No specific adjustment needed, but start at lower end of dosing range (400 mg once daily) due to potential renal impairment and increased sensitivity.
No specific dose adjustment recommended; initiate cautiously due to potential for decreased renal function.
None
Fetal toxicity: Drugs acting directly on the renin-angiotensin system (RAS) can cause fetal malformations, oligohydramnios, and neonatal renal failure. Discontinue as soon as pregnancy is detected.
Avoid use in pregnancy (fetal toxicity/neonatal morbidity/mortality),Hypotension in volume-depleted patients (e.g., diuretic therapy, dialysis),Hyperkalemia in patients with renal impairment or potassium-sparing diuretics/supplements,Acute renal failure in patients with bilateral renal artery stenosis or solitary kidney,Monitor renal function and serum potassium periodically
Hypotension in volume- or salt-depleted patients,Hyperkalemia, especially with renal impairment, diabetes, or concomitant potassium-sparing diuretics,Renal function impairment, including acute renal failure,Angioedema (rare),Use caution in severe aortic stenosis,Avoid concomitant use with aliskiren in diabetic patients
Concomitant use with aliskiren in patients with diabetes mellitus (type 2) or moderate to severe renal impairment (e GFR <60 m L/min/1.73 m²),Hypersensitivity to eprosartan or any component,Pregnancy (especially second and third trimesters)
Pregnancy (absolute),History of angioedema from any ARB or ACE inhibitor,Concomitant use with aliskiren in diabetic patients (absolute),Severe hepatic impairment (Child-Pugh class C) (relative)
No specific food interactions. Avoid excessive potassium intake (e.g., potassium-rich foods like bananas, oranges, tomatoes, spinach) as TEVETEN may increase serum potassium. No restrictions with alcohol, but limit intake as it may lower blood pressure and increase side effects. Grapefruit juice has no known interaction.
Avoid high-potassium foods (e.g., bananas, oranges, spinach, potatoes) and salt substitutes containing potassium chloride, as BYVALSON can increase potassium levels.
Drugs acting directly on the renin-angiotensin system (RAS) can cause fetal and neonatal morbidity and death when used in pregnancy. First-trimester exposure is associated with a low risk of congenital anomalies, but second- and third-trimester exposure is associated with oligohydramnios, fetal renal dysfunction, skull ossification defects, and neonatal hypotension, anuria, and renal failure. TEVETEN (eprosartan mesylate) is an angiotensin II receptor blocker, and its use is contraindicated in pregnancy, especially during the second and third trimesters.
Angiotensin II receptor antagonists (ARBs) are contraindicated in pregnancy due to fetal renal dysfunction, oligohydramnios, skull ossification defects, and neonatal anuria/hypotension. Risk is highest in the second and third trimesters; first-trimester exposure may also increase risk of congenital malformations.
Eprosartan is excreted in rat milk at concentrations approximately 2.4 times higher than maternal plasma. No data exist on its excretion in human breast milk. Due to the potential for adverse effects in nursing infants, a decision should be made whether to discontinue nursing or discontinue the drug, taking into account the importance of the drug to the mother. The M/P ratio in humans is unknown.
No data on Byvalson (valsartan/nebivolol) in breast milk. Valsartan is excreted in rat milk; unknown in humans. Nebivolol is likely excreted in human milk. Due to potential for adverse effects in nursing infants (hypotension, bradycardia), breastfeeding is not recommended. M/P ratio not established.
TEVETEN is contraindicated in pregnancy, and no dose adjustments are recommended because the drug should not be used. If pregnancy is detected, discontinue the drug as soon as possible. Pharmacokinetic changes in pregnancy, such as increased plasma volume, may alter the drug's effect, but use is not advised.
Byvalson is contraindicated in pregnancy; no dose adjustment is recommended. Alternative antihypertensives with established safety profiles should be used. If exposure occurs, discontinue immediately and manage with appropriate therapy.
TEVETEN (eprosartan mesylate) is an angiotensin II receptor blocker (ARB) with a high affinity for the AT1 receptor. It has a dose-dependent antihypertensive effect. Avoid use in pregnancy; discontinue as soon as pregnancy is detected. Monitor renal function and serum potassium in patients with renal impairment, diabetes, or those on potassium-sparing diuretics. May cause angioedema, though rare. Use with caution in patients with unilateral or bilateral renal artery stenosis due to risk of acute renal failure.
BYVALSON (sacubitril/valsartan) is a first-in-class ARNI approved for heart failure with reduced ejection fraction (HFr EF). Monitor blood pressure and renal function closely upon initiation, especially in patients on high-dose ACE inhibitors or ARBs. Avoid use with ACE inhibitors within 36 hours due to risk of angioedema. May cause hypotension, hyperkalemia, and renal impairment. Titrate every 2-4 weeks to target dose of 97/103 mg BID as tolerated.
Take TEVETEN exactly as prescribed, usually once daily, with or without food.,Do not stop taking this medication without consulting your doctor, as it may worsen your condition.,Avoid becoming pregnant while on TEVETEN; use effective contraception and inform your doctor immediately if you think you are pregnant.,Report any signs of angioedema (swelling of face, lips, throat, difficulty breathing) or fainting to your doctor immediately.,Inform all healthcare providers that you are taking TEVETEN, especially before surgery or any procedure requiring anesthesia.,Stay hydrated, but do not use potassium supplements or salt substitutes containing potassium without medical advice.,Monitor your blood pressure regularly as directed and keep a log to share with your doctor.
Do not take within 36 hours of any ACE inhibitor medication.,Take BYVALSON twice daily with or without food.,Monitor blood pressure regularly; report dizziness or fainting.,Avoid salt substitutes containing potassium.,Seek medical help immediately if you experience swelling of the face, lips, or throat.,Stay hydrated but do not use potassium supplements without consulting your doctor.
No interactions on record
No interactions on record
Explore head-to-head clinical comparisons of other medications in the same therapeutic classes.
Common clinical questions about TEVETEN vs BYVALSON, answered by our medical review team.
TEVETEN is a Angiotensin II Receptor Blocker that works by Selective angiotensin II receptor type 1 (AT1) antagonist, blocking the vasoconstrictor and aldosterone-secreting effects of angiotensin II.. BYVALSON is a Angiotensin II Receptor Blocker that works by Valsartan is an angiotensin II receptor blocker (ARB) that selectively binds to the AT1 receptor, inhibiting angiotensin II-mediated vasoconstriction and aldosterone secretion. It also reduces blood pressure and causes vasodilation.. They differ in pharmacokinetic profiles, FDA-approved indications, and side effect profiles.
Potency comparisons between TEVETEN and BYVALSON depend on the specific clinical indication. These are both Angiotensin II Receptor Blocker agents and are not directly interchangeable by dose. A physician or clinical pharmacist should guide any therapeutic switching decisions.
The standard adult dose of TEVETEN is: 400-800 mg orally once daily; can be divided twice daily if needed for adequate blood pressure control.. The standard adult dose of BYVALSON is: 160 mg orally once daily.. Dosing should always be individualized based on indication, renal and hepatic function, age, and other patient factors.
No direct drug-drug interaction has been formally documented between TEVETEN and BYVALSON in current clinical databases. However, individual patient risk factors including other medications, organ function, and comorbidities should always be evaluated by a qualified healthcare provider.
The maternal-fetal safety profiles differ. TEVETEN is classified as Category C. Drugs acting directly on the renin-angiotensin system (RAS) can cause fetal and neonatal morbidity and death when used in pregnancy. First-trimester exposure is associated with a l. BYVALSON is classified as Category C. Angiotensin II receptor antagonists (ARBs) are contraindicated in pregnancy due to fetal renal dysfunction, oligohydramnios, skull ossification defects, and neonatal anuria/hypoten. Always consult a maternal-fetal medicine specialist before taking either drug during pregnancy or lactation.