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Drug Interactions between colchicine and Seldane

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

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Interactions between your drugs

No interactions were found between colchicine and Seldane. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

colchicine

A total of 309 drugs are known to interact with colchicine.

Seldane

A total of 390 drugs are known to interact with Seldane.

Drug and food interactions

Major

colchicine food

Applies to: colchicine

GENERALLY AVOID: Coadministration with grapefruit juice may increase the serum concentrations of colchicine. Clinical toxicity including myopathy, neuropathy, multiorgan failure, and pancytopenia may occur. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism and P-glycoprotein efflux in the gut wall by certain compounds present in grapefruits. A published case report describes an eight-year-old patient with familial Mediterranean fever who developed acute clinical colchicine intoxication after ingesting approximately one liter of grapefruit juice per day for two months prior to hospital admission while being treated with colchicine 2 mg/day. Her condition progressed to circulatory shock and multiorgan failure, but she recovered with supportive therapy after 24 days in the hospital. In a study of 21 healthy volunteers, administration of 240 mL grapefruit juice twice a day for 4 days was found to have no significant effect on the pharmacokinetics of a single 0.6 mg dose of colchicine. However, significant interactions have been reported with other CYP450 3A4 inhibitors such as clarithromycin, diltiazem, erythromycin, ketoconazole, ritonavir, and verapamil.

MANAGEMENT: Patients treated with colchicine should be advised to avoid the consumption of grapefruit and grapefruit juice, and to contact their physician if they experience symptoms of colchicine toxicity such as abdominal pain, nausea, vomiting, diarrhea, fatigue, myalgia, asthenia, hyporeflexia, paresthesia, and numbness.

References (19)
  1. Pettinger WA (1975) "Clonidine, a new antihypertensive drug." N Engl J Med, 293, p. 1179-80
  2. Caraco Y, Putterman C, Rahamimov R, Ben-Chetrit E (1992) "Acute colchicine intoxication: possible role of erythromycin administration." J Rheumatol, 19, p. 494-6
  3. Schiff D, Drislane FW (1992) "Rapid-onset colchicine myoneuropathy." Arthritis Rheum, 35, p. 1535-6
  4. Putterman C, Ben-Chetrit E, Caraco Y, Levy M (1991) "Colchicine intoxication: clinical pharmacology, risk factors, features, and management." Semin Arthritis Rheum, 21, p. 143-55
  5. Boomershine KH (2002) "Colchicine-induced rhabdomyolysis." Ann Pharmacother, 36, p. 824-6
  6. (2003) "Severe colchicine-macrolide interactions." Prescrire Int, 12, p. 18-9
  7. Tateishi T, Soucek P, Caraco Y, Guengerich FP, Wood AJ (1996) "Colchicine biotransformation by human liver microsomes. Identification of CYP3A4 as the major isoform responsible for colchicine demethylation." Biochem Pharmacol, 53, p. 111-6
  8. Dogukan A, Oymak FS, Taskapan H, Guven M, Tokgoz B, Utas C (2001) "Acute fatal colchicine intoxication in a patient on continuous ambulatory peritoneal dialysis (CAPD). Possible role of clarithromycin administration." Clin Nephrol, 55, p. 181-2
  9. Rollot F, Pajot O, Chauvelot-Moachon L, Nazal EM, Kelaidi C, Blanche P (2004) "Acute colchicine intoxication during clarithromycin administration." Ann Pharmacother, 38, p. 2074-7
  10. Wilbur K, Makowsky M (2004) "Colchicine myotoxicity: case reports and literature review." Pharmacotherapy, 24, p. 1784-92
  11. Hung IF, Wu AK, Cheng VC, et al. (2005) "Fatal interaction between clarithromycin and colchicine in patients with renal insufficiency: a retrospective study." Clin Infect Dis, 41, p. 291-300
  12. Cheng VC, Ho PL, Yuen KY (2005) "Two probable cases of serious drug interaction between clarithromycin and colchicine." South Med J, 98, p. 811-3
  13. Akdag I, Ersoy A, Kahvecioglu S, Gullulu M, Dilek K (2006) "Acute colchicine intoxication during clarithromycin administration in patients with chronic renal failure." J Nephrol, 19, p. 515-7
  14. van der Velden W, Huussen J, Ter Laak H, de Sevaux R (2008) "Colchicine-induced neuromyopathy in a patient with chronic renal failure: the role of clarithromycin." Neth J Med, 66, p. 204-6
  15. Goldbart A, Press J, Sofer S, Kapelushnik J (2000) "Near fatal acute colchicine intoxication in a child. A case report." Eur J Pediatr, 159, p. 895-7
  16. (2008) "Colchicine: serious interactions." Prescrire Int, 17, p. 151-3
  17. (2009) "Product Information. Colcrys (colchicine)." AR Scientific Inc
  18. Dahan A, Amidon GL (2009) "Grapefruit juice and its constitueants augment colchicine intestinal absorption: potential hazardous interaction and the role of p-glycoprotein." Pharm Res, 26, p. 883-92
  19. McKinnell J, Tayek JA (2009) "Short term treatment with clarithromycin resulting in colchicine-induced rhabdomyolysis." J Clin Rheumatol, 15, p. 303-5
Major

terfenadine food

Applies to: Seldane (terfenadine)

CONTRAINDICATED: The consumption of grapefruit juice has been associated with significantly increased plasma concentrations of terfenadine. The mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall induced by certain compounds present in grapefruits. Terfenadine in high serum levels has been associated with prolongation of the QT interval and development of torsade de pointes, a potentially fatal ventricular arrhythmia.

MANAGEMENT: Due to the risk of cardiotoxicity, patients receiving the drug should be advised to avoid consumption of grapefruit products. Loratadine, cetirizine, and fexofenadine may be safer alternatives in patients who may have trouble adhering to the dietary restriction.

References (17)
  1. Honig PK, Woosley RL, Zamani K, Conner DP, Cantilena LR Jr (1992) "Changes in the pharmacokinetics and electrocardiographic pharmacodynamics of terfenadine with concomitant administration of erythromycin." Clin Pharmacol Ther, 52, p. 231-8
  2. Zimmermann M, Duruz H, Guinand O, et al. (1992) "Torsades de Pointes after treatment with terfenadine and ketoconazole." Eur Heart J, 13, p. 1002-3
  3. Mathews DR, McNutt B, Okerholm R, et al. (1991) "Torsades de pointes occurring in association with terfenadine use." JAMA, 266, p. 2375-6
  4. Monahan BP, Ferguson CL, Killeavy ES, et al. (1990) "Torsades de pointes occurring in association with terfenadine use." JAMA, 264, p. 2788-90
  5. Honig PK, Wortham DC, Zamani K, et al. (1993) "Terfenadine-ketoconazole interaction: pharmacokinetic and electrocardiographic consequences." JAMA, 269, p. 1513-8
  6. Pohjola-Sintonen S, Viitasalo M, Toivonene L, Neuvonen P (1993) "Torsades de pointes after terfenadine-itraconazole interaction." BMJ, 306, p. 186
  7. Cortese LM, Bjornson DC (1992) "Potential interaction between terfenadine and macrolide antibiotics." Clin Pharm, 11, p. 675
  8. Paris DG, Parente TF, Bruschetta HR, Guzman E, Niarchos AP (1994) "Torsades-de-pointes induced by erythromycin and terfenadine." Am J Emerg Med, 12, p. 636-8
  9. Zechnich AD, Haxby DG (1996) "Drug interactions associated with terfenadine and related nonsedating antihistamines." West J Med, 164, p. 68-9
  10. Honig PK, Wortham DC, Lazarev A, Cantilena LR (1996) "Grapefruit juice alters the systemic bioavailability and cardiac repolarization of terfenadine in poor metabolizers of terfenadine." J Clin Pharmacol, 36, p. 345-51
  11. Woosley RL (1996) "Cardiac actions of antihistamines." Annu Rev Pharmacol Toxicol, 36, p. 233-52
  12. Benton RE, Honig PK, Zamani K, Cantilena LR, Woosley RL (1996) "Grapefruit juice alters terfenadine pharmacokinetics resulting in prolongation of repolarization on the electrocardiogram." Clin Pharmacol Ther, 59, p. 383-8
  13. Hsieh MH, Chen SA, Chiang CE, et al. (1996) "Drug-induced torsades de pointes in one patient with congenital long QT syndrome." Int J Cardiol, 54, p. 85-8
  14. Clifford CP, Adams DA, Murray S, Taylor GW, Wilkins MR, Boobis AR, Davies DS (1996) "Pharmacokinetic and cardiac effects of terfenadine after inhibition of its metabolism by grapefruit juice." Br J Clin Pharmacol, 42, p662
  15. Rau SE, Bend JR, Arnold JMO, Tran LT, Spence JD, Bailey DG (1997) "Grapefruit juice terfenadine single-dose interaction: Magnitude, mechanism, and relevance." Clin Pharmacol Ther, 61, p. 401-9
  16. Bailey DG, Malcolm J, Arnold O, Spence JD (1998) "Grapefruit juice-drug interactions." Br J Clin Pharmacol, 46, p. 101-10
  17. Bailey DG, Dresser GR, Kreeft JH, Munoz C, Freeman DJ, Bend JR (2000) "Grapefruit-felodipine interaction: Effect of unprocessed fruit and probable active ingredients." Clin Pharmacol Ther, 68, p. 468-77

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.

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