Drug General Information (ID: DDI6KL583Z)
  Drug Name Erythromycin Drug Info Cerivastatin Drug Info
  Drug Type Small molecule Small molecule
  Therapeutic Class Antibiotics Statins/Antihyperlipidemic Agents
  Structure

 Mechanism of Erythromycin-Cerivastatin Interaction (Severity Level: Major)
     CYP450 enzyme inhibition Click to Show/Hide Mechanism Graph
Could Not Find 2D Structure
      Drug Name Erythromycin Cerivastatin
      Mechanism CYP450 3A4 inhibitor CYP450 3A4 substrate
      Key Mechanism Factor 1
Factor Name Cytochrome P450 3A4
×
Structure Sequence
MALIPDLAMETWLLLAVSLVLLYLYGTHSHGLFKKLGIPGPTPLPFLGNILSYHKGFCMFDMECHKKYGKVWGFYDGQQPVLAITDPDMIKTVLVKECYSVFTNRRPFGPVGFMKSAISIAEDEEWKRLRSLLSPTFTSGKLKEMVPIIAQYGDVLVRNLRREAETGKPVTLKDVFGAYSMDVITSTSFGVNIDSLNNPQDPFVENTKKLLRFDFLDPFFLSITVFPFLIPILEVLNICVFPREVTNFLRKSVKRMKESRLEDTQKHRVDFLQLMIDSQNSKETESHKALSDLELVAQSIIFIFAGYETTSSVLSFIMYELATHPDVQQKLQEEIDAVLPNKAPPTYDTVLQMEYLDMVVNETLRLFPIAMRLERVCKKDVEINGMFIPKGVVVMIPSYALHRDPKYWTEPEKFLPERFSKKNKDNIDPYIYTPFGSGPRNCIGMRFALMNMKLALIRVLQNFSFKPCKETQIPLKLSLGGLLQPEKPVVLKVESRDGTVSGA
Gene Name CYP3A4
Uniprot ID CP3A4_HUMAN
KEGG Pathway hsa:1576
Protein Family Cytochrome P450 family
Protein Function
A cytochrome P450 monooxygenase involved in the metabolism of sterols, steroid hormones, retinoids and fatty acids (PubMed:10681376, PubMed:11093772, PubMed:11555828, PubMed:14559847, PubMed:12865317, PubMed:15373842, PubMed:15764715, PubMed:20702771, PubMed:19965576, PubMed:21490593, PubMed:21576599). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase). Catalyzes the hydroxylation of carbon-hydrogen bonds (PubMed:2732228, PubMed:14559847, PubMed:12865317, PubMed:15373842, PubMed:15764715, PubMed:21576599, PubMed:21490593). Exhibits high catalytic activity for the formation of hydroxyestrogens from estrone (E1) and 17beta-estradiol (E2), namely 2-hydroxy E1 and E2, as well as D-ring hydroxylated E1 and E2 at the C-16 position (PubMed:11555828, PubMed:14559847, PubMed:12865317). Plays a role in the metabolism of androgens, particularly in oxidative deactivation of testosterone (PubMed:2732228, PubMed:15373842, PubMed:15764715, PubMed:22773874). Metabolizes testosterone to less biologically active 2beta- and 6beta-hydroxytestosterones (PubMed:2732228, PubMed:15373842, PubMed:15764715). Contributes to the formation of hydroxycholesterols (oxysterols), particularly A-ring hydroxylated cholesterol at the C-4beta position, and side chain hydroxylated cholesterol at the C-25 position, likely contributing to cholesterol degradation and bile acid biosynthesis (PubMed:21576599). Catalyzes bisallylic hydroxylation of polyunsaturated fatty acids (PUFA) (PubMed:9435160). Catalyzes the epoxidation of double bonds of PUFA with a preference for the last double bond (PubMed:19965576). Metabolizes endocannabinoid arachidonoylethanolamide (anandamide) to 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid ethanolamides (EpETrE-EAs), potentially modulating endocannabinoid system signaling (PubMed:20702771). Plays a role in the metabolism of retinoids. Displays high catalytic activity for oxidation of all-trans-retinol to all-trans-retinal, a rate-limiting step for the biosynthesis of all-trans-retinoic acid (atRA) (PubMed:10681376). Further metabolizes atRA toward 4-hydroxyretinoate and may play a role in hepatic atRA clearance (PubMed:11093772). Responsible for oxidative metabolism of xenobiotics. Acts as a 2-exo-monooxygenase for plant lipid 1,8-cineole (eucalyptol) (PubMed:11159812). Metabolizes the majority of the administered drugs. Catalyzes sulfoxidation of the anthelmintics albendazole and fenbendazole (PubMed:10759686). Hydroxylates antimalarial drug quinine (PubMed:8968357). Acts as a 1,4-cineole 2-exo-monooxygenase (PubMed:11695850). Also involved in vitamin D catabolism and calcium homeostasis. Catalyzes the inactivation of the active hormone calcitriol (1-alpha,25-dihydroxyvitamin D(3)) (PubMed:29461981).
    Click to Show/Hide
      Mechanism Description
  • Decreased metabolism of Cerivastatin caused by Erythromycin mediated inhibition of CYP450 enzyme

Recommended Action
      Management The benefits of using HMG-CoA reductase inhibitors that are metabolized by CYP450 3A4 in combination with medications that can inhibit the isoenzyme such as clarithromycin and erythromycin should be carefully weighed against the potentially increased risk of myopathy including rhabdomyolysis. A lower dosage of the HMG-CoA reductase inhibitor should be considered if concomitant use is required. Atorvastatin labeling recommends that the dosage not exceed 20 mg/day when used in combination with clarithromycin. Fluvastatin, pitavastatin, and rosuvastatin may be safer alternatives, since they are not metabolized by CYP450 3A4. 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.

References
1 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. [PMID: 11936570]
2 Ayanian JZ, Fuchs CS, Stone RM "Lovastatin and rhabdomyolysis." Ann Intern Med 109 (1988): 682-3. [PMID: 3421582]
3 Chouhan UM, Chakrabarti S, Millward LJ "Simvastatin interaction with clarithromycin and amiodarone causing myositis." Ann Pharmacother 39 (2005): 1760-1. [PMID: 16159992]
4 Cooper JM, Jones AL "Neuroleptic malignant syndrome or a statin drug reaction? A case report." Clin Neuropharmacol 32 (2009): 348-9. [PMID: 19952877]
5 Corpier CL, Jones PH, Suki WN, et al. "Rhabdomyolysis and renal injury with lovastatin use. Report of two cases in cardiac transplant recipients." JAMA 260 (1988): 239-41. [PMID: 3290520]
6 East C, Alivizatos PA, Grundy SM, Jones PH, Farmer JA "Rhabdomyolysis in patients receiving lovastatin after cardiac transplantation." N Engl J Med 318 (1988): 47-8. [PMID: 3275892]
7 Garnett WR "Interactions with hydroxymethylglutaryl-coenzyme A reductase inhibitors." Am J Health Syst Pharm 52 (1995): 1639-45. [PMID: 7583826]
8 Grunden JW, Fisher KA "Lovastatin-induced rhabdomyolysis possibly associated with clarithromycin and azithromycin." Ann Pharmacother 31 (1997): 859-63. [PMID: 9220046]
9 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. [PMID: 12380704]
10 Kantola T, Kivisto KT, Neuvonen PJ "Erythromycin and verapamil considerably increase serum simvastatin and simvastatin acid concentrations." Clin Pharmacol Ther 64 (1998): 177-82. [PMID: 9728898]
11 Lee AJ, Maddix DS "Rhabdomyolysis secondary to a drug interaction between simvastatin and clarithromycin." Ann Pharmacother 35 (2001): 26-31. [PMID: 11197581]
12 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. [PMID: 18563955]
13 Omar MA, Wilson JP "FDA adverse event reports on statin-associated rhabdomyolysis." Ann Pharmacother 36 (2002): 288-95. [PMID: 11847951]
14 Product Information. Baycol (cerivastatin). Bayer, West Haven, CT.
15 Product Information. Lipitor (atorvastatin). Parke-Davis, Morris Plains, NJ.
16 Product Information. Mevacor (lovastatin). Merck & Co, Inc, West Point, PA.
17 Product Information. Zocor (simvastatin). Merck & Co, Inc, West Point, PA.
18 Siedlik PH, Olson SC, Yang BB, Stern RH "Erythromycin coadministration increases plasma atorvastatin concentrations." J Clin Pharmacol 39 (1999): 501-4. [PMID: 10234598]
19 Sipe BE, Jones RJ, Bokhart GH "Rhabdomyolysis Causing AV Blockade Due to Possible Atorvastatin, Esomeprazole, and Clarithromycin Interaction." Ann Pharmacother 37 (2003): 808-11. [PMID: 12773066]
20 Spach DH, Bauwens JE, Clark CD, Burke WG "Rhabdomyolysis associated with lovastatin and erythromycin use." West J Med 154 (1991): 213-5. [PMID: 2006579]
21 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. [PMID: 11012550]
22 Williams D, Feely J "Pharmacokinetic-Pharmacodynamic Drug Interactions with HMG-CoA Reductase Inhibitors." Clin Pharmacokinet 41 (2002): 343-70. [PMID: 12036392]
23 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. [PMID: 9496876]