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Drug Interactions between duvelisib and FloLipid

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

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Moderate

simvastatin duvelisib

Applies to: FloLipid (simvastatin) and duvelisib

MONITOR: Coadministration with inhibitors of CYP450 3A4 may increase the plasma concentrations of HMG-CoA reductase inhibitors (i.e., statins) that are metabolized by the isoenzyme. Lovastatin and simvastatin are particularly susceptible because of their low oral bioavailability, but others such as atorvastatin and cerivastatin may also be affected. High levels of HMG-CoA reductase inhibitory activity in plasma is associated with an increased risk of musculoskeletal toxicity. Myopathy manifested as muscle pain and/or weakness associated with grossly elevated creatine kinase exceeding ten times the upper limit of normal has been reported occasionally. Rhabdomyolysis has also occurred rarely, which may be accompanied by acute renal failure secondary to myoglobinuria and may result in death. Clinically significant interactions have been reported with potent CYP450 3A4 inhibitors such as macrolide antibiotics, azole antifungals, protease inhibitors and nefazodone, and moderate inhibitors such as amiodarone, cyclosporine, danazol, diltiazem and verapamil.

MANAGEMENT: Caution is recommended if atorvastatin, cerivastatin, lovastatin, simvastatin, or red yeast rice (which contains lovastatin) is prescribed with a CYP450 3A4 inhibitor. It is advisable to monitor lipid levels and use the lowest effective statin dose. All patients receiving statin therapy should be advised to promptly report any unexplained muscle pain, tenderness or weakness, particularly if accompanied by fever, malaise and/or dark colored urine. Therapy should be discontinued if creatine kinase is markedly elevated in the absence of strenuous exercise or if myopathy is otherwise suspected or diagnosed. Fluvastatin, pravastatin, and rosuvastatin are not expected to interact with CYP450 3A4 inhibitors.

References

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  2. Ayanian JZ, Fuchs CS, Stone RM "Lovastatin and rhabdomyolysis." Ann Intern Med 109 (1988): 682-3
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  5. Norman DJ, Illingworth DR, Munson J, Hosenpud J "Myolysis and acute renal failure in a heart-transplant recipient receiving lovastatin." N Engl J Med 318 (1988): 46-7
  6. "Product Information. Mevacor (lovastatin)." Merck & Co., Inc PROD (2002):
  7. "Product Information. Zocor (simvastatin)." Merck & Co., Inc PROD (2001):
  8. Dallaire M, Chamberland M "Severe rhabdomyolysis in a patient receiving lovastatin, danazol and doxycycline." Can Med Assoc J 150 (1994): 1991-4
  9. Campana C, Iacona I, Regassi MB, et al. "Efficacy and pharmacokinetics of simvastatin in heart transplant recipients." Ann Pharmacother 29 (1995): 235-9
  10. Lees RS, Lees AM "Rhabdomyolysis from the coadministration of lovastatin and the antifungal agent itraconazole." N Engl J Med 333 (1995): 664-5
  11. Zhou LX, Finley DK, Hassell AE, Holtzman JL "Pharmacokinetic interaction between isradipine and lovastatin in normal, female and male volunteers." J Pharmacol Exp Ther 273 (1995): 121-7
  12. Neuvonen PJ, Jalava KM "Itraconazole drastically increases plasma concentrations of lovastatin and lovastatin acid." Clin Pharmacol Ther 60 (1996): 54-61
  13. Horn M "Coadministration of itraconazole with hypolipidemic agents may induce rhabdomyolysis in healthy individuals." Arch Dermatol 132 (1996): 1254
  14. "Product Information. Lipitor (atorvastatin)." Parke-Davis PROD (2001):
  15. Jacobson RH, Wang P, Glueck CJ "Myositis and rhabdomyolysis associated with concurrent use of simvastatin and nefazodone." JAMA 277 (1997): 296
  16. Jody DN "Myositis and rhabdomyolysis associated with concurrent use of simvastatin and nefazodone." JAMA 277 (1997): 296-7
  17. "Product Information. Baycol (cerivastatin)." Bayer PROD (2001):
  18. Grunden JW, Fisher KA "Lovastatin-induced rhabdomyolysis possibly associated with clarithromycin and azithromycin." Ann Pharmacother 31 (1997): 859-63
  19. Wong PW, Dillard TA, Kroenke K "Multiple organ toxicity from addition of erythromycin to long-term lovastatin therapy." South Med J 91 (1998): 202-5
  20. Neuvonen PJ, Kantola T, Kivisto KT "Simvastatin but not pravastatin is very susceptible to interaction with the CYP3A4 inhibitor itraconazole." Clin Pharmacol Ther 63 (1998): 332-41
  21. Agbin NE, Brater DC, Hall SD "Interaction of diltiazem with lovastatin and pravastatin." Clin Pharmacol Ther 61 (1997): 201
  22. Kivisto KT, Kantola T, Neuvonen PJ "Different effects of itraconazole on the pharmacokinetics of fluvastatin and lovastatin." Br J Clin Pharmacol 46 (1998): 49-53
  23. Kantola T, Kivisto KT, Neuvonen PJ "Effect of itraconazole on the pharmacokinetics of atorvastatin." Clin Pharmacol Ther 64 (1998): 58-65
  24. Kantola T, Kivisto KT, Neuvonen PJ "Erythromycin and verapamil considerably increase serum simvastatin and simvastatin acid concentrations." Clin Pharmacol Ther 64 (1998): 177-82
  25. Azie NE, Brater DC, Becker PA, Jones DR, Hall SD "The interaction of diltiazem with lovastatin and pravastatin." Clin Pharmacol Ther 64 (1998): 369-77
  26. Lomaestro BM, Piatek MA "Update on drug interactions with azole antifungal agents." Ann Pharmacother 32 (1998): 915-28
  27. Kantola T, Kivisto KT, Neuvonen PJ "Effect of itraconazole on cerivastatin pharmacokinetics." Eur J Clin Pharmacol 54 (1999): 851-5
  28. Malaty LI, Kuper JJ "Drug interactions of HIV protease inhibitors." Drug Safety 20 (1999): 147-69
  29. Siedlik PH, Olson SC, Yang BB, Stern RH "Erythromycin coadministration increases plasma atorvastatin concentrations." J Clin Pharmacol 39 (1999): 501-4
  30. Barry M, Mulcahy F, Merry C, Gibbons S, Back D "Pharmacokinetics and potential interactions amongst antiretroviral agents used to treat patients with HIV infection." Clin Pharmacokinet 36 (1999): 289-304
  31. Rodriguez JA, CrespoLeiro MG, Paniagua MJ, Cuenca JJ, Hermida LF, Juffe A, CastroBeiras A "Rhabdomyolysis in heart transplant patients on HMG-CoA reductase inhibitors and cyclosporine." Transplant Proc 31 (1999): 2522-3
  32. Gruer PJK, Vega JM, Mercuri MF, Dobrinska MR, Tobert JA "Concomitant use of cytochrome P450 3A4 inhibitors and simvastatin." Am J Cardiol 84 (1999): 811-5
  33. Gilad R, Lampl Y "Rhabdomyolysis induced by simvastatin and ketoconazole treatment." Clin Neuropharmacol 22 (1999): 295-7
  34. Gullestad L, Nordal KP, Berg KJ, Cheng H, Schwartz MS, Simonsen S "Interaction between lovastatin and cyclosporine A after heart and kidney transplantation." Transplant Proc 31 (1999): 2163-5
  35. Yeo KR, Yeo WW, Wallis EJ, Ramsay LE "Enhanced cholesterol reduction by simvastatin in diltiazem-treated patients." Br J Clin Pharmacol 48 (1999): 610-5
  36. Maltz HC, Balog DL, Cheigh JS "Rhabdomyolysis associated with concomitant use of atorvastatin and cyclosporine." Ann Pharmacother 33 (1999): 1176-9
  37. Dresser GK, Spence JD, Bailey DG "Pharmacokinetic-pharmacodynamic consequences and clinical relevance of cytochrome P450 3A4 inhibition." Clin Pharmacokinet 38 (2000): 41-57
  38. Jardine A, Holdaas H "Fluvastatin in combination with cyclosporin in renal transplant recipients: a review of clinical and safety experience." J Clin Pharm Ther 24 (1999): 397-408
  39. Mousa O, Brater DC, Sundblad KJ, Hall SD "The interaction of diltiazem with simvastatin." Clin Pharmacol Ther 67 (2000): 267-74
  40. Westphal JF "Macrolide - induced clinically relevant drug interactions with cytochrome P-450 (CYP) 3A4: an update focused on clarithromycin, azithromycin, and dirithromycin." Br J Clin Pharmacol 50 (2000): 285-95
  41. Kusus M, Stapleton DD, Lertora JJL, Simon EE, Dreisbach AW "Rhabdomyolysis and acute renal failure in a cardiac transplant recipient due to multiple drug interactions." Am J Med Sci 320 (2000): 394-7
  42. Lee AJ, Maddix DS "Rhabdomyolysis secondary to a drug interaction between simvastatin and clarithromycin." Ann Pharmacother 35 (2001): 26-31
  43. Yeo KR, Yeo WW "Inhibitory effects of verapamil and diltiazem on simvastatin metabolism in human liver microsomes." Br J Clin Pharmacol 51 (2001): 461-70
  44. Arnadottir M, Eriksson LO, Thysell H, Karkas JD "Plasma concentration profiles of simvastatin 3-hydroxy- 3-methylglutaryl-coenzyme A reductase inhibitory activity in kidney transplant recipients with and without ciclosporin." Nephron 65 (1993): 410-3
  45. Corsini A, Bellosta S, Baetta R, Fumagalli R, Paoletti R, Bernini F "New insights into the pharmacodynamic and pharmacokinetic properties of statins." Pharmacol Ther 84 (1999): 413-28
  46. Garnett WR "Interactions with hydroxymethylglutaryl-coenzyme A reductase inhibitors." Am J Health Syst Pharm 52 (1995): 1639-45
  47. Omar MA, Wilson JP "FDA adverse event reports on statin-associated rhabdomyolysis." Ann Pharmacother 36 (2002): 288-95
  48. Fichtenbaum CJ, Gerber JG, Rosenkranz SL, et al. "Pharmacokinetic interactions between protease inhibitors and statins in HIV seronegative volunteers: ACTG Study A5047." AIDS 16 (2002): 569-577
  49. Amsden GW, Kuye O, Wei GC "A study of the interaction potential of azithromycin and clarithromycin with atorvastatin in healthy volunteers." J Clin Pharmacol 42 (2002): 444-9
  50. Williams D, Feely J "Pharmacokinetic-Pharmacodynamic Drug Interactions with HMG-CoA Reductase Inhibitors." Clin Pharmacokinet 41 (2002): 343-70
  51. Thompson M, Samuels S "Rhabdomyolysis with simvastatin and nefazodone." Am J Psychiatry 159 (2002): 1607
  52. Huynh T, Cordato D, Yang F, et al. "HMG coA reductase-inhibitor-related myopathy and the influence of drug interactions." Intern Med J 32(9-10) (2002): 486-90
  53. Paoletti R, Corsini A, Bellosta S "Pharmacological interactions of statins." Atheroscler Suppl 3 (2002): 35-40
  54. Sipe BE, Jones RJ, Bokhart GH "Rhabdomyolysis Causing AV Blockade Due to Possible Atorvastatin, Esomeprazole, and Clarithromycin Interaction." Ann Pharmacother 37 (2003): 808-11
  55. de Denus S, Spinler SA "Amiodarone's role in simvastatin-associated rhabdomyolysis." Am J Health Syst Pharm 60 (2003): 1791; author reply 1791-2
  56. Skrabal MZ, Stading JA, Monaghan MS "Rhabdomyolysis associated with simvastatin-nefazodone therapy." South Med J 96 (2003): 1034-5
  57. Andreou ER, Ledger S "Potential drug interaction between simvastatin and danazol causing rhabdomyolysis." Can J Clin Pharmacol 10 (2003): 172-4
  58. Roten L, Schoenenberger RA, Krahenbuhl S, Schlienger RG "Rhabdomyolysis in association with simvastatin and amiodarone." Ann Pharmacother 38 (2004): 978-81
  59. Jacobson TA "Comparative pharmacokinetic interaction profiles of pravastatin, simvastatin, and atorvastatin when coadministered with cytochrome P450 inhibitors." Am J Cardiol 94 (2004): 1140-6
  60. Chouhan UM, Chakrabarti S, Millward LJ "Simvastatin interaction with clarithromycin and amiodarone causing myositis." Ann Pharmacother 39 (2005): 1760-1
  61. Karnik NS, Maldonado JR "Antidepressant and statin interactions: a review and case report of simvastatin and nefazodone-induced rhabdomyolysis and transaminitis." Psychosomatics 46 (2005): 565-8
  62. Neuvonen PJ, Backman JT, Niemi M "Pharmacokinetic comparison of the potential over-the-counter statins simvastatin, lovastatin, fluvastatin and pravastatin." Clin Pharmacokinet 47 (2008): 463-74
  63. "Product Information. Qelbree (viloxazine)." Supernus Pharmaceuticals Inc (2021):
View all 63 references

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Drug and food interactions

Major

simvastatin food

Applies to: FloLipid (simvastatin)

GENERALLY AVOID: Coadministration with grapefruit juice may significantly increase the plasma concentrations of lovastatin and simvastatin and their active acid metabolites. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. When a single 60 mg dose of simvastatin was coadministered with 200 mL of double-strength grapefruit juice three times a day, simvastatin systemic exposure (AUC) increased by 16-fold and simvastatin acid AUC increased by 7-fold. Administration of a single 20 mg dose of simvastatin with 8 ounces of single-strength grapefruit juice increased the AUC of simvastatin and simvastatin acid by 1.9-fold and 1.3-fold, respectively. The interaction has also been reported with lovastatin, which has a similar metabolic profile to simvastatin. Clinically, high levels of HMG-CoA reductase inhibitory activity in plasma is associated with an increased risk of musculoskeletal toxicity. Myopathy manifested as muscle pain and/or weakness associated with grossly elevated creatine kinase exceeding ten times the upper limit of normal has been reported occasionally. Rhabdomyolysis has also occurred rarely, which may be accompanied by acute renal failure secondary to myoglobinuria and may result in death.

ADJUST DOSING INTERVAL: Fibres such as oat bran and pectin may diminish the pharmacologic effects of HMG-CoA reductase inhibitors by interfering with their absorption from the gastrointestinal tract.

Coadministration with green tea may increase the plasma concentrations of simvastatin. The mechanism of interaction has not been established, but may involve inhibition of organic anion transporting polypeptide (OATP) 1B1- and/or 2B1-mediated hepatic uptake of simvastatin by catechins in green tea. The interaction was suspected in a 61-year-old man who experienced muscle intolerance during treatment with simvastatin while drinking an average of 3 cups of green tea daily. He also experienced similar muscle intolerance (leg cramps without creatine phosphokinase elevation) during treatments with atorvastatin and rosuvastatin while drinking green tea. Pharmacokinetic studies performed during his usual green tea intake demonstrated an approximately two-fold higher exposure to simvastatin lactone (the administered form of simvastatin) than that observed after stopping green tea intake for a month. He was also able to tolerate simvastatin after discontinuing green tea consumption. The authors of the report subsequently conducted two independent studies to assess the effect of different green tea preparations on simvastatin pharmacokinetics. One study was conducted in 12 Italian subjects and the other in 12 Japanese subjects. In the Italian study, administration of a single 20 mg dose of simvastatin following pretreatment with 200 mL of a hot green tea standardized infusion 3 times daily for 14 days (estimated daily intake of 335 mg total catechins and 173 mg epigallocatechin-3-gallate (EGCG), the most abundant and biologically active catechin in green tea) was found to have no significant effect on mean peak plasma concentration (Cmax) or systemic exposure (AUC) of simvastatin lactone and simvastatin acid relative to administration with water. However, green tea increased simvastatin lactone AUC (0-6h) by about two-fold in 3 of the study subjects. In the Japanese study, administration of a single 10 mg dose of simvastatin following pretreatment with 350 mL of a commercial green tea beverage twice daily for 14 days (estimated daily intake of 638 mg total catechins and 322 mg EGCG) did not affect mean simvastatin lactone Cmax or AUC to a statistically significant extent compared to administration with water, but increased mean simvastatin acid Cmax and AUC by 42% and 22%, respectively. Similar to the first study, green tea increased simvastatin lactone AUC (0-6h) by two- to three-fold in 4 of the study subjects. Although not studied, the interaction may also occur with lovastatin due to its similar metabolic profile to simvastatin.

MANAGEMENT: Patients receiving therapy with lovastatin, simvastatin, or red yeast rice (which contains lovastatin) should be advised to avoid the consumption of grapefruit and grapefruit juice. Fluvastatin, pravastatin, pitavastatin, and rosuvastatin are metabolized by other enzymes and may be preferable alternatives in some individuals. All patients receiving statin therapy should be advised to promptly report any unexplained muscle pain, tenderness or weakness, particularly if accompanied by fever, malaise and/or dark colored urine. Therapy should be discontinued if creatine kinase is markedly elevated in the absence of strenuous exercise or if myopathy is otherwise suspected or diagnosed. Also, patients should either refrain from the use of oat bran and pectin, or separate the administration times by at least 2 to 4 hours if concurrent use cannot be avoided. Caution may be advisable when coadministered with green tea or green tea extracts. Dosing reduction of the statin and/or limiting consumption of green tea and green tea products may be required if an interaction is suspected.

References

  1. Richter WO, Jacob BG, Schwandt P "Interaction between fibre and lovastatin." Lancet 338 (1991): 706
  2. "Product Information. Mevacor (lovastatin)." Merck & Co., Inc PROD (2002):
  3. "Product Information. Zocor (simvastatin)." Merck & Co., Inc PROD (2001):
  4. Kantola T, Kivisto KT, Neuvonen PJ "Grapefruit juice greatly increases serum concentrations of lovastatin and lovastatin acid." Clin Pharmacol Ther 63 (1998): 397-402
  5. Bailey DG, Malcolm J, Arnold O, Spence JD "Grapefruit juice-drug interactions." Br J Clin Pharmacol 46 (1998): 101-10
  6. Lilja JJ, Kivisto KT, Neuvonen PJ "Grapefruit juice-simvastatin interaction: Effect on serum concentrations of simvastatin, simvastatin acid, and HMG-CoA reductase inhibitors." Clin Pharmacol Ther 64 (1998): 477-83
  7. Thompson PD, Clarkson P, Karas RH "Statin-associated myopathy." JAMA 289 (2003): 1681-90
  8. Neuvonen PJ, Backman JT, Niemi M "Pharmacokinetic comparison of the potential over-the-counter statins simvastatin, lovastatin, fluvastatin and pravastatin." Clin Pharmacokinet 47 (2008): 463-74
  9. Werba JP, Giroli M, Cavalca V, Nava MC, Tremoli E, Dal Bo L "The effect of green tea on simvastatin tolerability." Ann Intern Med 149 (2008): 286-7
  10. Werba JP, Misaka S, Giroli MG, et al. "Overview of Green Tea Interaction with Cardiovascular Drugs." Curr Pharm Des (2014):
  11. Roth M, Timmermann BN, Hagenbuch B "Interactions of green tea catechins with organic anion-transporting polypeptides." Drug Metab Dispos 39 (2011): 920-6
  12. Knop J, Misaka S, Singer K, et al. "Inhibitory effects of green tea and (-)-epigallocatechin gallate on transport by OATP1B1, OATP1B3, OCT1, OCT2, MATE1, MATE2-K and P-glycoprotein." PLoS One 10 (2015): e0139370
View all 12 references

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Moderate

duvelisib food

Applies to: duvelisib

MONITOR: Grapefruit juice may increase the plasma concentrations of orally administered drugs that are substrates of the CYP450 3A4 isoenzyme. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. Because grapefruit juice inhibits primarily intestinal rather than hepatic CYP450 3A4, the magnitude of interaction is greatest for those drugs that undergo significant presystemic metabolism by CYP450 3A4 (i.e., drugs with low oral bioavailability). In general, the effect of grapefruit juice is concentration-, dose- and preparation-dependent, and can vary widely among brands. Certain preparations of grapefruit juice (e.g., high dose, double strength) have sometimes demonstrated potent inhibition of CYP450 3A4, while other preparations (e.g., low dose, single strength) have typically demonstrated moderate inhibition. Pharmacokinetic interactions involving grapefruit juice are also subject to a high degree of interpatient variability, thus the extent to which a given patient may be affected is difficult to predict.

MANAGEMENT: Patients who regularly consume grapefruit or grapefruit juice should be monitored for adverse effects and altered plasma concentrations of drugs that undergo significant presystemic metabolism by CYP450 3A4. Grapefruit and grapefruit juice should be avoided if an interaction is suspected. Orange juice is not expected to interact with these drugs.

References

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  3. Bailey DG, Arnold JM, Munoz C, Spence JD "Grapefruit juice--felodipine interaction: mechanism, predictability, and effect of naringin." Clin Pharmacol Ther 53 (1993): 637-42
  4. Bailey DG, Arnold JMO, Spence JD "Grapefruit juice and drugs - how significant is the interaction." Clin Pharmacokinet 26 (1994): 91-8
  5. Sigusch H, Hippius M, Henschel L, Kaufmann K, Hoffmann A "Influence of grapefruit juice on the pharmacokinetics of a slow release nifedipine formulation." Pharmazie 49 (1994): 522-4
  6. Bailey DG, Arnold JM, Strong HA, Munoz C, Spence JD "Effect of grapefruit juice and naringin on nisoldipine pharmacokinetics." Clin Pharmacol Ther 54 (1993): 589-94
  7. Yamreudeewong W, Henann NE, Fazio A, Lower DL, Cassidy TG "Drug-food interactions in clinical practice." J Fam Pract 40 (1995): 376-84
  8. "Grapefruit juice interactions with drugs." Med Lett Drugs Ther 37 (1995): 73-4
  9. Hukkinen SK, Varhe A, Olkkola KT, Neuvonen PJ "Plasma concentrations of triazolam are increased by concomitant ingestion of grapefruit juice." Clin Pharmacol Ther 58 (1995): 127-31
  10. Min DI, Ku YM, Geraets DR, Lee HC "Effect of grapefruit juice on the pharmacokinetics and pharmacodynamics of quinidine in healthy volunteers." J Clin Pharmacol 36 (1996): 469-76
  11. Majeed A, Kareem A "Effect of grapefruit juice on cyclosporine pharmacokinetics." Pediatr Nephrol 10 (1996): 395
  12. Clifford CP, Adams DA, Murray S, Taylor GW, Wilkins MR, Boobis AR, Davies DS "Pharmacokinetic and cardiac effects of terfenadine after inhibition of its metabolism by grapefruit juice." Br J Clin Pharmacol 42 (1996): p662
  13. Josefsson M, Zackrisson AL, Ahlner J "Effect of grapefruit juice on the pharmacokinetics of amlodipine in healthy volunteers." Eur J Clin Pharmacol 51 (1996): 189-93
  14. Kantola T, Kivisto KT, Neuvonen PJ "Grapefruit juice greatly increases serum concentrations of lovastatin and lovastatin acid." Clin Pharmacol Ther 63 (1998): 397-402
  15. Ozdemir M, Aktan Y, Boydag BS, Cingi MI, Musmul A "Interaction between grapefruit juice and diazepam in humans." Eur J Drug Metab Pharmacokinet 23 (1998): 55-9
  16. Bailey DG, Malcolm J, Arnold O, Spence JD "Grapefruit juice-drug interactions." Br J Clin Pharmacol 46 (1998): 101-10
  17. Bailey DG, Kreeft JH, Munoz C, Freeman DJ, Bend JR "Grapefruit juice felodipine interaction: Effect of naringin and 6',7'-dihydroxybergamottin in humans." Clin Pharmacol Ther 64 (1998): 248-56
  18. Garg SK, Kumar N, Bhargava VK, Prabhakar SK "Effect of grapefruit juice on carbamazepine bioavailability in patients with epilepsy." Clin Pharmacol Ther 64 (1998): 286-8
  19. Lilja JJ, Kivisto KT, Neuvonen PJ "Grapefruit juice-simvastatin interaction: Effect on serum concentrations of simvastatin, simvastatin acid, and HMG-CoA reductase inhibitors." Clin Pharmacol Ther 64 (1998): 477-83
  20. Fuhr U, Maier-Bruggemann A, Blume H, et al. "Grapefruit juice increases oral nimodipine bioavailability." Int J Clin Pharmacol Ther 36 (1998): 126-32
  21. Lilja JJ, Kivisto KT, Neuvonen PJ "Grapefruit juice increases serum concentrations of atorvastatin and has no effect on pravastatin." Clin Pharmacol Ther 66 (1999): 118-27
  22. Eagling VA, Profit L, Back DJ "Inhibition of the CYP3A4-mediated metabolism and P-glycoprotein-mediated transport of the HIV-I protease inhibitor saquinavir by grapefruit juice components." Br J Clin Pharmacol 48 (1999): 543-52
  23. Damkier P, Hansen LL, Brosen K "Effect of diclofenac, disulfiram, itraconazole, grapefruit juice and erythromycin on the pharmacokinetics of quinidine." Br J Clin Pharmacol 48 (1999): 829-38
  24. Lee AJ, Chan WK, Harralson AF, Buffum J, Bui BCC "The effects of grapefruit juice on sertraline metabolism: An in vitro and in vivo study." Clin Ther 21 (1999): 1890-9
  25. Dresser GK, Spence JD, Bailey DG "Pharmacokinetic-pharmacodynamic consequences and clinical relevance of cytochrome P450 3A4 inhibition." Clin Pharmacokinet 38 (2000): 41-57
  26. Gunston GD, Mehta U "Potentially serious drug interactions with grapefruit juice." S Afr Med J 90 (2000): 41
  27. Takanaga H, Ohnishi A, Maatsuo H, et al. "Pharmacokinetic analysis of felodipine-grapefruit juice interaction based on an irreversible enzyme inhibition model." Br J Clin Pharmacol 49 (2000): 49-58
  28. Libersa CC, Brique SA, Motte KB, et al. "Dramatic inhibition of amiodarone metabolism induced by grapefruit juice." Br J Clin Pharmacol 49 (2000): 373-8
  29. Bailey DG, Dresser GR, Kreeft JH, Munoz C, Freeman DJ, Bend JR "Grapefruit-felodipine interaction: Effect of unprocessed fruit and probable active ingredients." Clin Pharmacol Ther 68 (2000): 468-77
  30. Zaidenstein R, Soback S, Gips M, Avni B, Dishi V, Weissgarten Y, Golik A, Scapa E "Effect of grapefruit juice on the pharmacokinetics of losartan and its active metabolite E3174 in healthy volunteers." Ther Drug Monit 23 (2001): 369-73
  31. Sato J, Nakata H, Owada E, Kikuta T, Umetsu M, Ito K "Influence of usual intake of dietary caffeine on single-dose kinetics of theophylline in healthy human subjects." Eur J Clin Pharmacol 44 (1993): 295-8
  32. Flanagan D "Understanding the grapefruit-drug interaction." Gen Dent 53 (2005): 282-5; quiz 286
View all 32 references

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Moderate

simvastatin food

Applies to: FloLipid (simvastatin)

MONITOR: Concomitant use of statin medication with substantial quantities of alcohol may increase the risk of hepatic injury. Transient increases in serum transaminases have been reported with statin use and while these increases generally resolve or improve with continued therapy or a brief interruption in therapy, there have been rare postmarketing reports of fatal and non-fatal hepatic failure in patients taking statins. Patients who consume substantial quantities of alcohol and/or have a history of liver disease may be at increased risk for hepatic injury. Active liver disease or unexplained transaminase elevations are contraindications to statin use.

MANAGEMENT: Patients should be counseled to avoid substantial quantities of alcohol in combination with statin medications and clinicians should be aware of the increased risk for hepatotoxicity in these patients.

References

  1. "Product Information. Pravachol (pravastatin)." Bristol-Myers Squibb PROD (2001):
  2. "Product Information. Zocor (simvastatin)." Merck & Co., Inc PROD (2001):
  3. "Product Information. Lescol (fluvastatin)." Novartis Pharmaceuticals PROD (2001):
  4. "Product Information. Lipitor (atorvastatin)." Parke-Davis PROD (2001):
  5. "Product Information. Altocor (lovastatin)." Andrx Pharmaceuticals (2002):
  6. "Product Information. Crestor (rosuvastatin)." AstraZeneca Pharma Inc (2003):
  7. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  8. Cerner Multum, Inc. "Australian Product Information." O 0
  9. "Product Information. Livalo (pitavastatin)." Kowa Pharmaceuticals America (formerly ProEthic) (2010):
View all 9 references

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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.

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