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Drug Interactions between Kaletra and triamcinolone nasal

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

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Interactions between your drugs

Moderate

ritonavir triamcinolone nasal

Applies to: Kaletra (lopinavir / ritonavir) and triamcinolone nasal

MONITOR: Coadministration with inhibitors of CYP450 3A4 may increase the plasma concentrations and pharmacologic effects of corticosteroids, which are primarily metabolized by the isoenzyme. The interaction has been reported with potent inhibitors such as clarithromycin, erythromycin, itraconazole, nefazodone, cobicistat, and ritonavir during concomitant use of various corticosteroids, including inhaled, nasal, and ophthalmic formulations. Systemic corticosteroid adverse effects may occur following intensive or long-term continuous ophthalmic corticosteroid therapy. Cushing's syndrome and adrenal insufficiency have been attributed to the interaction.

MANAGEMENT: The possibility of increased corticosteroid effects should be considered during coadministration with potent and moderate CYP450 3A4 inhibitors. Some authorities advise against concomitant use unless the potential benefit outweighs the risk. If the combination is considered necessary, a lower dosage of the corticosteroid may be required. When indicated for intranasal or inhalational use, alternative corticosteroids such as beclomethasone, which is less dependent on CYP450 3A4 metabolism, should be considered, particularly if long term treatment is required. Patients should be monitored for signs and symptoms of hypercorticism such as acne, striae, thinning of the skin, easy bruising, moon facies, dorsocervical "buffalo" hump, truncal obesity, increased appetite, acute weight gain, edema, hypertension, hirsutism, hyperhidrosis, proximal muscle wasting and weakness, glucose intolerance, exacerbation of preexisting diabetes, depression, and menstrual disorders. Other systemic glucocorticoid effects may include adrenal suppression, immunosuppression, posterior subcapsular cataracts, glaucoma, bone loss, and growth retardation in children and adolescents. Following extensive use with a potent CYP450 3A4 inhibitor, a progressive dosage reduction may be required over a longer period if the corticosteroid is to be withdrawn from therapy, as there may be a significant risk of adrenal suppression. Signs and symptoms of adrenal insufficiency include anorexia, hypoglycemia, nausea, vomiting, weight loss, muscle wasting, fatigue, weakness, dizziness, postural hypotension, depression, and adrenal crisis manifested as inability to respond to stress (e.g., illness, infection, surgery, trauma).

References

  1. Zurcher RM, Frey BM, Frey FJ "Impact of ketoconazole on the metabolism of prednisolone." Clin Pharmacol Ther 45 (1989): 366-72
  2. Yamashita SK, Ludwig EA, Middleton E Jr, Jusko WJ "Lack of pharmacokinetic and pharmacodynamic interactions between ketoconazole and prednisolone." Clin Pharmacol Ther 49 (1991): 558-70
  3. Ulrich B, Frey FJ, Speck RF, Frey BM "Pharmacokinetics/pharmacodynamics of ketoconazole-prednisolone interaction." J Pharmacol Exp Ther 260 (1992): 487-90
  4. Kandrotas RJ, Slaughter RL, Brass C, Jusko WJ "Ketoconazole effects on methylprednisolone disposition and their joint suppression of endogenous cortisol." Clin Pharmacol Ther 42 (1987): 465-70
  5. Glynn AM, Slaughter RL, Brass C, et al. "Effects of ketoconazole on methylprednisolone pharmacokinetics and cortisol secretion." Clin Pharmacol Ther 39 (1986): 654-9
  6. Itkin IH, Menzel ML "The use of macrolide antibiotic substances in the treatment of asthma." J Allergy Clin Immunol 45 (1970): 146-62
  7. LaForce CF, Szefler SJ, Miller MF, Ebling W, Brenner M "Inhibition of methylprednisolone elimination in the presence of erythromycin therapy." J Allergy Clin Immunol 72 (1983): 34-9
  8. Finkenbine RD, Frye MD "Case of psychosis due to prednisone-clarithromycin interaction." Gen Hosp Psychiat 20 (1998): 325-6
  9. Varis T, Kaukonen KM, Kivisto KT, Neuvonen PJ "Plasma concentrations and effects of oral methylprednisolone are considerably increased by itraconazole." Clin Pharmacol Ther 64 (1998): 363-8
  10. Hillebrand-Haverkort ME, Prummel MF, ten Veen JH "Ritonavir-induced Cushing's syndrome in a patient treated with nasal fluticasone." AIDS 13 (1999): 1803
  11. Varis T, Kivisto KT, Neuvonen PJ "The effect of itraconazole on the pharmacokinetics and pharmacodynamics of oral prednisolone." Eur J Clin Pharmacol 56 (2000): 57-60
  12. Varis T, Backman JT, Kivisto KT, Neuvonen PJ "Diltiazem and mibefradil increase the plasma concentrations and greatly enhance the adrenal-suppressant effect of oral methylprednisolone." Clin Pharmacol Ther 67 (2000): 215-21
  13. Garey KW, Rubinstein I, Gotfried MH, Khan IJ, Varma S, Danziger LH "Long-term clarithromycin decreases prednisone requirements in elderly patients with prednisone-dependent asthma." Chest 118 (2000): 1826-7
  14. Lebrun-Vignes B, Archer VC, Diquest B, et al. "Effect of itraconazole on the pharmacokinetics of prednisolone and methylprednisolone and cortisol secretion in healthy subjects." Br J Clin Pharmacol 51 (2001): 443-50
  15. Couturier J, Steele M, Hussey L, Pawliuk G "Steroid-induced mania in an adolescent: risk factors and management." Can J Clin Pharmacol 8 (2001): 109-12
  16. Gupta SK, Dube MP "Exogenous Cushing syndrome mimicking human immunodeficiency virus lipodystrophy." Clin Infect Dis 35 (2002): E69-71
  17. Raaska K, Niemi M, Neuvonen M, Neuvonen PJ, Kivisto KT "Plasma concentrations of inhaled budesonide and its effects on plasma cortisol are increased by the cytochrome P4503A4 inhibitor itraconazole." Clin Pharmacol Ther 72 (2002): 362-369
  18. Main KM, Skov M, Sillesen IB, et al. "Cushing's syndrome due to pharmacological interaction in a cystic fibrosis patient." Acta Paediatr 91 (2002): 1008-11
  19. Skov M, Main KM, Sillesen IB, Muller J, Koch C, Lanng S "Iatrogenic adrenal insufficiency as a side-effect of combined treatment of itraconazole and budesonide." Eur Respir J 20 (2002): 127-33
  20. Kotlyar M, Brewer ER, Golding M, Carson SW "Nefazodone inhibits methylprednisolone disposition and enhances its adrenal-suppressant effect." J Clin Psychopharmacol 23 (2003): 652-6
  21. Bolland MJ, Bagg W, Thomas MG, Lucas JA, Ticehurst R, Black PN "Cushing's syndrome due to interaction between inhaled corticosteroids and itraconazole." Ann Pharmacother 38 (2004): 46-9
  22. Edsbacker S, Andersson T "Pharmacokinetics of budesonide (Entocort EC) capsules for Crohn's disease." Clin Pharmacokinet 43 (2004): 803-21
  23. Samaras K, Pett S, Gowers A, McMurchie M, Cooper DA "Iatrogenic Cushing's syndrome with osteoporosis and secondary adrenal failure in HIV-infected patients receiving inhaled corticosteroids and ritonavir-boosted protease inhibitors: six cases." J Clin Endocrinol Metab 90 (2005): 4394-8
  24. Soldatos G, Sztal-Mazer S, Woolley I, Stockigt J "Exogenous glucocorticoid excess as a result of ritonavir-fluticasone interaction." Intern Med J 35 (2005): 67-8
  25. Penzak SR, Formentini E, Alfaro RM, Long M, Natarajan V, Kovacs J "Prednisolone pharmacokinetics in the presence and absence of ritonavir after oral prednisone administration to healthy volunteers." J Acquir Immune Defic Syndr 40 (2005): 573-80
  26. EMEA. European Medicines Agency "EPARs. European Union Public Assessment Reports. http://www.ema.europa.eu/ema/index.jsp?curl=pages/includes/medicines/medicines_landingpage.jsp&mid" (2007):
  27. Bhumbra NA, Sahloff EG, Oehrtman SJ, Horner JM "Exogenous Cushing syndrome with inhaled fluticasone in a child receiving lopinavir/ritonavir." Ann Pharmacother 41 (2007): 1306-9
  28. Busse KH, Formentini E, Alfaro RM, Kovacs JA, Penzak SR "Influence of antiretroviral drugs on the pharmacokinetics of prednisolone in HIV-infected individuals." J Acquir Immune Defic Syndr 48 (2008): 561-6
  29. Agencia EspaƱola de Medicamentos y Productos Sanitarios Healthcare "Centro de informaciĆ³n online de medicamentos de la AEMPS - CIMA. https://cima.aemps.es/cima/publico/home.html" (2008):
View all 29 references

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Drug and food interactions

Moderate

ritonavir food

Applies to: Kaletra (lopinavir / ritonavir)

ADJUST DOSING INTERVAL: Administration with food may modestly affect the bioavailability of ritonavir from the various available formulations. When the oral solution was given under nonfasting conditions, peak ritonavir concentrations decreased 23% and the extent of absorption decreased 7% relative to fasting conditions. Dilution of the oral solution (within one hour of dosing) with 240 mL of chocolate milk or a nutritional supplement (Advera or Ensure) did not significantly affect the extent and rate of ritonavir absorption. When a single 100 mg dose of the tablet was administered with a high-fat meal (907 kcal; 52% fat, 15% protein, 33% carbohydrates), approximately 20% decreases in mean peak concentration (Cmax) and systemic exposure (AUC) were observed relative to administration after fasting. Similar decreases in Cmax and AUC were reported when the tablet was administered with a moderate-fat meal. In contrast, the extent of absorption of ritonavir from the soft gelatin capsule formulation was 13% higher when administered with a meal (615 KCal; 14.5% fat, 9% protein, and 76% carbohydrate) relative to fasting.

MANAGEMENT: Ritonavir should be taken with meals to enhance gastrointestinal tolerability.

References

  1. "Product Information. Norvir (ritonavir)." Abbott Pharmaceutical PROD (2001):

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Moderate

lopinavir food

Applies to: Kaletra (lopinavir / ritonavir)

ADJUST DOSING INTERVAL: Food significantly increases the bioavailability of lopinavir from the oral solution formulation of lopinavir-ritonavir. Relative to fasting, administration of lopinavir-ritonavir oral solution with a moderate-fat meal (500 to 682 Kcal; 23% to 25% calories from fat) increased lopinavir peak plasma concentration (Cmax) and systemic exposure (AUC) by 54% and 80%, respectively, whereas administration with a high-fat meal (872 Kcal; 56% from fat) increased lopinavir Cmax and AUC by 56% and 130%, respectively. No clinically significant changes in Cmax and AUC were observed following administration of lopinavir-ritonavir tablets under fed conditions versus fasted conditions. Relative to fasting, administration of a single 400 mg-100 mg dose (two 200 mg-50 mg tablets) with a moderate-fat meal (558 Kcal; 24.1% calories from fat) increased lopinavir Cmax and AUC by 17.6% and 26.9%, respectively, while administration with a high-fat meal (998 Kcal; 51.3% from fat) increased lopinavir AUC by 18.9% but not Cmax. Relative to fasting, ritonavir Cmax and AUC also increased by 4.9% and 14.9%, respectively, with the moderate-fat meal and 10.3% and 23.9%, respectively, with the high-fat meal.

MANAGEMENT: Lopinavir-ritonavir oral solution should be taken with meals to enhance bioavailability and minimize pharmacokinetic variability. Lopinavir-ritonavir tablets may be taken without regard to meals.

References

  1. "Product Information. Kaletra (lopinavir-ritonavir)." Abbott Pharmaceutical 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.


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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.