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Azor (amlodipine / olmesartan) Disease Interactions

There are 8 disease interactions with Azor (amlodipine / olmesartan):

Ar Antagonists (Includes Azor) ↔ Hypotension

Severe Potential Hazard, High plausibility

Applies to: Dehydration, hemodialysis, Hyponatremia

Angiotensin II receptor (AR) antagonists can cause symptomatic hypotension in patients with an activated renin-angiotensin system, such as volume- and/or sodium-depleted patients. Therapy with AR antagonists should be administered cautiously in such patients and in those predisposed to hypovolemic or hyponatremic states (e.g., patients on diuretic therapy, especially if high doses were used or if recently instituted; those on dietary salt restriction; renal dialysis patients). Volume and/or sodium depletion should be corrected prior to initiating therapy with AR antagonists, and the patient should be hemodynamically stable. Ideally, patients at risk for excessive hypotension should initiate AR antagonist therapy under close medical supervision, preferably with a lower dose, and followed closely for the first 2 weeks of treatment and whenever the dosage of AR antagonist or diuretic is increased.

References

  1. "Product Information. Cozaar (losartan)." Merck & Co, Inc, West Point, PA.
  2. Goldberg MR, Bradstreet TE, McWilliams EJ, Tanaka WK, Lipert S, Bjornsson TD, Waldman SA, Osborne B, Pivadori L, Lewis G, et al "Biochemical effects of losartan, a nonpeptide angiotensin II receptor antagonist, on the renin-angiotensin-aldosterone system in hypertensive patients." Hypertension 25 (1995): 37-46
  3. Tikkanen I, Omvik P, Jensen HA "Comparison of the angiotensin II antagonist losartan with the angiotensin converting enzyme inhibitor enalapril in patients with essential hypertension." J Hypertens 13 (1995): 1343-51
View all 22 references

Ccbs (Includes Azor) ↔ Cardiogenic Shock/Hypotension

Severe Potential Hazard, High plausibility

Applies to: Cardiogenic Shock, Hypotension

In general, calcium channel blockers (CCBs) should not be used in patients with hypotension (systolic pressure < 90 mm Hg) or cardiogenic shock. Due to potential negative inotropic and peripheral vasodilating effects, the use of CCBs may further depress cardiac output and blood pressure, which can be detrimental in these patients. The use of verapamil and diltiazem is specifically contraindicated under these circumstances.

References

  1. "Product Information. Calan (verapamil)." Searle, Skokie, IL.
  2. Stehle G, Buss J, Eibach J, et al "Cardiogenic shock associated with verapamil in a patient with liver cirrhosis." Lancet 336 (1990): 1079
  3. "Product Information. Vascor (bepridil)." McNeil Pharmaceutical, Raritan, NJ.
View all 6 references

Ccbs (Includes Azor) ↔ Coronary Artery Disease

Severe Potential Hazard, Low plausibility

Applies to: Ischemic Heart Disease

Increased frequency, duration, and/or severity of angina, as well as acute myocardial infarction, have rarely developed during initiation or dosage increase of calcium channel blockers (CCBs), particularly in patients with severe obstructive coronary artery disease and those treated with immediate-release formulations. The mechanism of this effect is not established. Therapy with CCBs should be administered cautiously in patients with significant coronary artery disease.

References

  1. Myrhed M, Wiholm B-E "Nifedipine: a survey of adverse effects." Acta Pharmacol Toxicol (Copenh) 58 (1986): 133-6
  2. Kloner RA "Nifedipine in ischemic heart disease." Circulation 92 (1995): 1074-8
  3. Thomassen AR, Bagger JP, Nielsen TT "Hemodynamic and cardiac metabolic changes during nicardipine-induced myocardial ischemia." Cathet Cardiovasc Diagn 14 (1988): 41-3
View all 15 references

Ccbs (Includes Azor) ↔ Liver Disease

Severe Potential Hazard, High plausibility

Applies to: Liver Disease

Calcium channel blockers (CCBs) are extensively metabolized by the liver. The half-lives of CCBs may be prolonged substantially in patients with severe hepatic impairment, with the potential for significant drug accumulation. In addition, the use of some CCBs has been associated with elevations in serum transaminases, both with and without concomitant elevations in alkaline phosphatase and bilirubin. While these effects may be transient and reversible, several patients have developed cholestasis or hepatocellular injury that was proven by rechallenge. Therapy with CCBs should be administered cautiously and often at reduced dosages in patients with significantly impaired hepatic function. Periodic monitoring of liver function and for excessive pharmacologic effects (e.g., abnormal prolongation of PR interval) is advised, and the dosage adjusted if necessary.

References

  1. Stern EH, Pitchon R, King BD, Wiener I "Possible hepatitis from verapamil." N Engl J Med 306 (1982): 612-3
  2. Giacomini KM, Massoud N, Wong FM, Giacomini JC "Decreased binding of verapamil to plasma proteins in patients with liver disease." J Cardiovasc Pharmacol 6 (1984): 924-8
  3. "Product Information. Calan (verapamil)." Searle, Skokie, IL.
View all 53 references

Ar Antagonists (Includes Azor) ↔ Chf

Moderate Potential Hazard, Moderate plausibility

Applies to: Congestive Heart Failure

Angiotensin II receptor (AR) antagonists can cause renal impairment in patients whose renal function depends on the activity of the renin-angiotensin-aldosterone system. In addition, symptomatic hypotension can occur in susceptible individuals, which may compromise renal and myocardial perfusion. In patients with severe congestive heart failure (CHF), treatment with AR antagonists has been associated with oliguria and/or progressive azotemia and, rarely, renal failure, myocardial ischemia, and death. Therapy with AR antagonists should be initiated cautiously in patients with severe CHF, especially when accompanied by volume and/or sodium depletion. In patients who experience a decline in renal function, discontinuation of AR antagonist therapy is usually not required provided there is symptomatic improvement of the heart failure and renal deterioration is well-tolerated. Transient hypotension is also not a contraindication to further treatment with AR antagonists, since therapy can usually be reinstated without difficulty after blood pressure stabilizes.

References

  1. Saine DR, Ahrens ER "Renal impairment associated with losartan." Ann Intern Med 124 (1996): 775
  2. Doig JK, MacFadyen RJ, Sweet CS, Lees KR, Reid JL "Dose-ranging study of the angiotensin type I receptor antagonist losartan (DuP753/MK954), in salt-deplete normal man." J Cardiovasc Pharmacol 21 (1993): 732-8
  3. Holwerda NJ, Fogari R, Angeli P, et al. "Valsartan, a new angiotensin II antagonist for the treatment of essential hypertension: efficacy and safety compared with placebo and enalapril." J Hypertens 14 (1996): 1147-115
View all 27 references

Ar Antagonists (Includes Azor) ↔ Renal Artery Stenosis

Moderate Potential Hazard, Moderate plausibility

Applies to: Renal Artery Atherosclerosis

In patients with bilateral renal artery stenosis or renal artery stenosis in a solitary kidney, angiotensin II receptor (AR) antagonists may reduce renal perfusion to a critically low level. Increases in serum creatinine or blood urea nitrogen have been reported with ACE inhibitors, a class of drugs that also block the renin-angiotensin-aldosterone system. Although there are no long-term data on the use of AR antagonists in patients with renal artery stenosis, a similar effect should be anticipated. Renal function should be monitored closely for the first few weeks of therapy.

References

  1. "Product Information. Benicar (olmesartan)." Sankyo Parke Davis, Parsippany, NJ.
  2. "Product Information. Cozaar (losartan)." Merck & Co, Inc, West Point, PA.
  3. "Product Information. Diovan (valsartan)." Novartis Pharmaceuticals, East Hanover, NJ.

Ccbs (Includes Azor) ↔ Chf/Ami

Moderate Potential Hazard, Moderate plausibility

Applies to: Congestive Heart Failure, Myocardial Infarction

Calcium channel blockers (CCBs) may have varying degrees of negative inotropic effect. Congestive heart failure (CHF), worsening of CHF, and pulmonary edema have occurred in some patients treated with a CCB, primarily verapamil. Some CCBs have also caused mild to moderate peripheral edema due to localized vasodilation of dependent arterioles and small blood vessels, which can be confused with the effects of increasing left ventricular dysfunction. Although some CCBs have been used in the treatment of CHF, therapy with CCBs should be administered cautiously in patients with severe left ventricular dysfunction (e.g., ejection fraction < 30%) or moderate to severe symptoms of cardiac failure and in patients with any degree of ventricular dysfunction if they are receiving a beta-adrenergic blocker. Likewise, caution is advised in patients with acute myocardial infarction and pulmonary congestion documented by X-ray on admission, since associated heart failure may be acutely worsened by administration of a CCB.

References

  1. Batlouni M, Armaganijan D, Ghorayeb N, Magliano MF "Clinical efficacy and tolerability of isradipine in the treatment of mild-to-moderate hypertension in young and elderly patients." J Cardiovasc Pharmacol 19 (1992): s53-7
  2. Sleight P "Calcium antagonists during and after myocardial infarction." Drugs 51 (1996): 216-25
  3. Brogden RN, Sorkin EM "Isradipine: an update of its pharmacodynamic and pharmacokinetic properties and therapeutic efficacy in the treatment of mild to moderate hypertension." Drugs 49 (1995): 618-49
View all 29 references

Olmesartan (Includes Azor) ↔ Renal/Liver Disease

Moderate Potential Hazard, Moderate plausibility

Applies to: Renal Dysfunction, Liver Disease, Biliary Obstruction

Olmesartan is eliminated unchanged in the urine and bile. After repeated dosing in patients with severe renal impairment (CrCl < 20 mL/min), the systemic exposure (AUC) was approximately tripled compared to subjects with normal renal function. In patients with moderate hepatic impairment, the AUC increased about 60% relative to that in matched controls. The manufacturer states that no initial dosage adjustment is necessary in patients with moderate to marked renal or hepatic impairment. However, patients should be monitored for undue adverse effects of the drug.

References

  1. "Product Information. Benicar (olmesartan)." Sankyo Parke Davis, Parsippany, NJ.

You should also know about...

Azor (amlodipine / olmesartan) drug Interactions

There are 633 drug interactions with Azor (amlodipine / olmesartan)

Azor (amlodipine / olmesartan) alcohol/food Interactions

There are 3 alcohol/food interactions with Azor (amlodipine / olmesartan)

Drug Interaction Classification

The classifications below are a general guideline only. It is difficult to determine the relevance of a particular drug interaction to any individual given the large number of variables.

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.

Do not stop taking any medications without consulting your healthcare provider.

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