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Drug Interactions between Kao-Tin Advanced Formula and nebivolol / valsartan

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

valsartan nebivolol

Applies to: nebivolol / valsartan and nebivolol / valsartan

GENERALLY AVOID: In the Valsartan Heart Failure Trial, the combination of valsartan with a beta-blocker and an ACE inhibitor was associated with unfavorable outcomes on morbidity and mortality in heart failure patients. The mechanism is unknown.

MANAGEMENT: The manufacturer recommends that the triple combination of valsartan with a beta-blocker and an ACE inhibitor be avoided in heart failure patients.

References

  1. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  2. Cerner Multum, Inc. "Australian Product Information." O 0

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Minor

attapulgite nebivolol

Applies to: Kao-Tin Advanced Formula (attapulgite) and nebivolol / valsartan

Concurrent administration with aluminum and magnesium antacids has been shown to decrease the oral bioavailability of certain beta-blockers, although data are conflicting. The exact mechanism of interaction is unknown but may involve cation binding of beta-blockers or a reduction in the dissolution rate due to increased gastric pH. In six healthy volunteers, concomitant administration of a single dose of antacid (magnesium hydroxide-aluminum oxide 1200 mg-1800 mg) reduced the peak plasma concentration (Cmax), area under the concentration-time curve (AUC) and 24-hour urinary excretion of sotalol (160 mg) by 27%, 21% and 9%, respectively, while administration of the antacid 2 hours after the sotalol dose produced no change. Pharmacodynamic data suggest that the negative chronotropic effect of sotalol was also reduced up to 4 hours after administration of the combination, although the lack of a placebo control might have confounded the results. In another study, concomitant administration of an aluminum hydroxide antacid in six healthy volunteers decreased atenolol (100 mg) Cmax and AUC by 37% and 33%, respectively. However, the Cmax and AUC of metoprolol (100 mg) in the same group was increased 25% and 11%, respectively, by administration of the antacid. Two other studies with aluminum hydroxide failed to find a significant effect on pharmacokinetics or pharmacodynamics of atenolol and propranolol. Based on available data, the clinical significance of this potential interaction is difficult to determine. As a precaution, patients may want to consider separating the administration times of beta-blockers and antacids or other aluminum- or magnesium-containing products by at least 2 hours.

References

  1. Kirch W, Schafer-Korting M, Axthelm T, Kohler H, Mutschler E "Interaction of atenolol with furosemide and calcium and aluminum salts." Clin Pharmacol Ther 30 (1981): 429-35
  2. D'Arcy PF, McElnay JC "Drug-antacid interactions: assessment of clinical importance." Drug Intell Clin Pharm 21 (1987): 607-17
  3. Hong CY, Hu SC, Lin SJ, Chiang BN "Lack of influence of aluminum hydroxide on the bioavailability and beta-adrenoceptor blocking activity of propranolol." Int J Clin Pharmacol Ther Toxicol 23 (1985): 244-6
  4. Dobbs JH, Skoutakis VA, Acchiardo SR, Dobbs BR "Effects of aluminum hydroxide on the absorption of propranolol." Curr Ther Res Clin Exp 21 (1977): 887-92
  5. Regardh CG, Lundborg P, Persson BA "The effect of antacid, metoclopramide, and propantheline on the bioavailability of metoprolol and atenolol." Biopharm Drug Dispos 2 (1981): 79-87
  6. Gugler R, Allgayer H "Effects of antacids on the clinical pharmacokinetics of drugs. An update." Clin Pharmacokinet 18 (1990): 210-9
  7. Laer S, Neumann J, Scholz H "Interaction between sotalol and an antacid preparation." Br J Clin Pharmacol 43 (1997): 269-72
View all 7 references

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Drug and food interactions

Moderate

valsartan food

Applies to: nebivolol / valsartan

GENERALLY AVOID: Moderate-to-high dietary intake of potassium, especially salt substitutes, may increase the risk of hyperkalemia in some patients who are using angiotensin II receptor blockers (ARBs). ARBs can promote hyperkalemia through inhibition of angiotensin II-induced aldosterone secretion. Patients with diabetes, heart failure, dehydration, or renal insufficiency have a greater risk of developing hyperkalemia.

MANAGEMENT: Patients should receive dietary counseling and be advised to not use potassium-containing salt substitutes or over-the-counter potassium supplements without consulting their physician. If salt substitutes are used concurrently, regular monitoring of serum potassium levels is recommended. Patients should also be advised to seek medical attention if they experience symptoms of hyperkalemia such as weakness, irregular heartbeat, confusion, tingling of the extremities, or feelings of heaviness in the legs.

References

  1. "Product Information. Cozaar (losartan)." Merck & Co., Inc PROD (2001):
  2. "Product Information. Diovan (valsartan)." Novartis Pharmaceuticals PROD (2001):

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Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

See also

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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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