Skip to main content

Drug Interactions between fenfluramine and panobinostat

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

Edit list (add/remove drugs)

Interactions between your drugs

Major

fenfluramine panobinostat

Applies to: fenfluramine and panobinostat

MONITOR CLOSELY: Coadministration of panobinostat and drugs that interfere with platelet function or coagulation may potentiate the risk of bleeding complications, including selective serotonin reuptake inhibitors (SSRIs) and other agents with serotonin reuptake inhibitor (SRI) properties, such as clomipramine. Treatment with panobinostat has been associated with severe thrombocytopenia and hemorrhage (including gastrointestinal and pulmonary hemorrhage) with fatal outcomes. This risk may be increased in patients with coagulation disorders or those on chronic anticoagulation therapy. In a phase III clinical trial in patients with relapsed multiple myeloma, treatment-emergent grade 3 to 4 (CTCAE) thrombocytopenia and hemorrhage was reported in 67% and 4.2% of panobinostat-treated patients, respectively. In the same clinical trial, there were 5 patients treated with panobinostat who died due to a hemorrhagic event, compared to one in the control arm. The patients with fatal bleeding events had at least grade 3 (CTCAE) thrombocytopenia at the time of the event. In addition, serotonin release by platelets plays an important role in hemostasis, thus SSRIs may alter platelet function and induce bleeding. Bleeding events related to SSRIs have ranged from ecchymosis, hematoma, epistaxis, and petechiae to life-threatening hemorrhages. Epidemiological studies have confirmed the association between the use of these agents and the occurrence of upper gastrointestinal bleeding, and concurrent use of NSAIDs or aspirin was found to potentiate the risk. Concomitant administration of paroxetine and warfarin has been associated with an increased frequency of bleeding without apparent changes in the disposition of either drug or changes in the prothrombin time. Bleeding has also been reported with fluoxetine and warfarin, while citalopram and sertraline have been reported to prolong the prothrombin time of patients taking warfarin by about 5% to 8%. In the RE-LY study (randomized evaluation of long-term anticoagulant therapy), SSRIs were associated with an increased risk of bleeding in all treatment groups. In addition, coadministration with panobinostat may increase the plasma concentrations of drugs that are substrates of CYP450 2D6, including but not limited to SSRIs such as duloxetine, fluoxetine, fluvoxamine, paroxetine, and venlafaxine, as well as clomipramine, which has strong SRI properties. When a single 60 mg dose of dextromethorphan, a CYP450 2D6 probe substrate, was coadministered with panobinostat (20 mg once per day on days 3, 5, and 8) in 14 patients with advanced cancer, dextromethorphan peak plasma concentration (Cmax) increased by 20% to 200% (median 80%) and systemic exposure (AUC) increased by 20% to 130% (median 60%) compared to administration of dextromethorphan alone.

MANAGEMENT: Caution is recommended when panobinostat is used in combination with SSRIs or other medicines with SRI properties. Close clinical and laboratory observation for bleeding complications is recommended during therapy. A complete blood cell count should be performed prior to and at least weekly during treatment per treatment protocols, including monitoring for thrombocytopenia. Dose modifications may be required based on individual patient tolerability. Monitoring for side effects associated with increased levels of SSRIs such as confusion, tachycardia, tremor, or nausea, should also be considered. Patients should be advised to promptly report any signs of bleeding to their doctor, including pain, swelling, headache, dizziness, weakness, prolonged bleeding from cuts, increased menstrual flow, vaginal bleeding, nosebleeds, bleeding of gums from brushing, unusual bleeding or bruising, red or brown urine, or red or black stools. Since panobinostat is indicated in combination with bortezomib and dexamethasone, the manufacturer labeling for these products should also be consulted for additional information.

References

  1. Aranth J, Lindberg C (1992) "Bleeding, a side effect of fluoxetine." Am J Psychiatry, 149, p. 412
  2. Claire RJ, Servis ME, Cram DL Jr (1991) "Potential interaction between warfarin sodium and fluoxetine." Am J Psychiatry, 148, p. 1604
  3. Yaryura-Tobias JA, Kirschen H, Ninan P, Mosberg HJ (1991) "Fluoxetine and bleeding in obsessive-compulsive disorder." Am J Psychiatry, 148, p. 949
  4. Humphries JE, Wheby MS, VandenBerg SR (1990) "Fluoxetine and the bleeding time." Arch Pathol Lab Med, 114, p. 727-8
  5. Alderman CP, Moritz CK, Ben-Tovim DI (1992) "Abnormal platelet aggregation associated with fluoxetine therapy." Ann Pharmacother, 26, p. 1517-9
  6. Ciraulo DA, Shader RI (1990) "Fluoxetine drug-drug interactions. II." J Clin Psychopharmacol, 10, p. 213-7
  7. (2001) "Product Information. Zoloft (sertraline)." Roerig Division
  8. Woolfrey S, Gammack NS, Dewar MS, Brown PJ (1993) "Fluoxetine-warfarin interaction." BMJ, 307, p. 241
  9. (2001) "Product Information. Prozac (fluoxetine)." Dista Products Company
  10. (2001) "Product Information. Effexor (venlafaxine)." Wyeth-Ayerst Laboratories
  11. Bannister SJ, Houser VP, Hulse JD, Kisicki JC, Rasmussen JG (1989) "Evaluation of the potential for interactions of paroxetine with diazepam, cimetidine, warfarin, and digoxin." Acta Psychiatr Scand Suppl, 350, p. 102-6
  12. (2001) "Product Information. Paxil (paroxetine)." GlaxoSmithKline
  13. Messiha FS (1993) "Fluoxetine - adverse effects and drug-drug interactions." J Toxicol Clin Toxicol, 31, p. 603-30
  14. Ottervanger JP, Stricker BH, Huls J, Weeda JN (1994) "Bleeding attributed to the intake of paroxetine." Am J Psychiatry, 151, p. 781-2
  15. (2001) "Product Information. Luvox (fluvoxamine)." Solvay Pharmaceuticals Inc
  16. Krivy J, Wiener J (1995) "Sertraline and platelet counts in idiopathic thrombocytopenia purpura." Lancet, 345, p. 132
  17. Skop BP, Brown TM (1996) "Potential vascular and bleeding complications of treatment with selective serotonin reuptake inhibitors." Psychosomatics, 37, p. 12-6
  18. Pai VB, Kelly MW (1996) "Bruising associated with the use of fluoxetine." Ann Pharmacother, 30, p. 786-8
  19. Alderman CP, Seshadri P, Ben-Tovim DI (1996) "Effects of serotonin reuptake inhibitors on hemostasis." Ann Pharmacother, 30, p. 1232-4
  20. Leung M, Shore R (1996) "Fluvoxamine-associated bleeding." Can J Psychiatry, 41, p. 604-5
  21. Dent LA, Orrock MW (1997) "Warfarin-fluoxetine and diazepam-fluoxetine interaction." Pharmacotherapy, 17, p. 170-2
  22. Ford MA, Anderson ML, Rindone JP, Jaskar DW (1997) "Lack of effect of fluoxetine on the hypoprothrombinemic response of warfarin." J Clin Psychopharmacol, 17, p. 110-2
  23. (2001) "Product Information. Celexa (citalopram)." Forest Pharmaceuticals
  24. de Abajo FJ, Rodriguez LA, Montero D (1999) "Association between selective serotonin reuptake inhibitors and upper gastrointestinal bleeding: population based case-control study." BMJ, 319, p. 1106-9
  25. de Abajo FJ, Jick H, Derby L, Jick S, Schmitz S (2000) "Intracranial haemorrhage and use of selective serotonin reuptake inhibitors." Br J Clin Pharmacol, 50, p. 43-7
  26. Settle EC (1998) "Antidepressant drugs: disturbing and potentially dangerous adverse effects." J Clin Psychiatry, 59 Suppl 16, p. 25-30
  27. Hergovich N, Aigner M, Eichler HG, Entlicher J, Drucker C, Jilma B (2000) "Paroxetine decreases platelet serotonin storage and platelet function in human beings." Clin Pharmacol Ther, 68, p. 435-42
  28. Layton D, Clark DWJ, Pearce GL, Shakir SAW (2001) "Is there an association between selective serotonin reuptake inhibitors and risk of abnormal bleeding? Results from a cohort study based on prescription event monitoring in England." Eur J Clin Pharmacol, 57, p. 167-76
  29. (2002) "Product Information. Lexapro (escitalopram)." Forest Pharmaceuticals
  30. de Maistre E, Allart C, Lecompte T, Bollaert PE (2002) "Severe bleeding associated with use of low molecular weight heparin and selective serotonin reuptake inhibitors." Am J Med, 113, p. 530-2
  31. Dalton SO, Johansen C, Mellemkjaer L, Norgard B, Sorensen HT, Olsen JH (2003) "Use of selective serotonin reuptake inhibitors and risk of upper gastrointestinal tract bleeding: a population-based cohort study." Arch Intern Med, 163, p. 59-64
  32. (2004) "Product Information. Cymbalta (duloxetine)." Lilly, Eli and Company
  33. Tata LJ, Fortun PJ, Hubbard RB, et al. (2005) "Does concurrent prescription of selective serotonin reuptake inhibitors and non-steroidal anti-inflammatory drugs substantially increase the risk of upper gastrointestinal bleeding?" Aliment Pharmacol Ther, 22, p. 175-81
  34. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  35. Cerner Multum, Inc. "Australian Product Information."
  36. (2008) "Product Information. Pristiq (desvenlafaxine)." Wyeth Laboratories
  37. (2009) "Product Information. Savella (milnacipran)." Forest Pharmaceuticals
  38. (2011) "Product Information. Viibryd (vilazodone)." Trovis Pharmaceuticals LLC
  39. (2013) "Product Information. Fetzima (levomilnacipran)." Forest Pharmaceuticals
  40. (2013) "Product Information. Brintellix (vortioxetine)." Takeda Pharmaceuticals America
  41. (2015) "Product Information. Farydak (panobinostat)." Novartis Pharmaceuticals
View all 41 references

Switch to consumer interaction data

Drug and food interactions

Moderate

fenfluramine food

Applies to: fenfluramine

GENERALLY AVOID: Alcohol may potentiate the central nervous system and cardiovascular effects of centrally-acting appetite suppressants. In one study, concurrent administration of methamphetamine (30 mg intravenously) and ethanol (1 gm/kg orally over 30 minutes) increased heart rate by 24 beats/minute compared to methamphetamine alone. This increases cardiac work and myocardial oxygen consumption, which may lead to more adverse cardiovascular effects than either agent alone. Subjective effects of ethanol were diminished in the eight study subjects, but those of methamphetamine were not affected. The pharmacokinetics of methamphetamine were also unaffected except for a decrease in the apparent volume of distribution at steady state.

MANAGEMENT: Concomitant use of centrally-acting appetite suppressants and alcohol should be avoided if possible, especially in patients with a history of cardiovascular disease. Patients should be counselled to avoid hazardous activities requiring complete mental alertness and motor coordination until they know how these agents affect them, and to notify their physician if they experience excessive or prolonged CNS effects that interfere with their normal activities.

References

  1. Mendelson J, Jones RT, Upton R, Jacob P 3rd (1995) "Methamphetamine and ethanol interactions in humans." Clin Pharmacol Ther, 57, p. 559-68
  2. (2001) "Product Information. Didrex (benzphetamine)." Pharmacia and Upjohn
  3. (2012) "Product Information. Suprenza (phentermine)." Akrimax Pharmaceuticals

Switch to consumer interaction data

Moderate

panobinostat food

Applies to: panobinostat

GENERALLY AVOID: Grapefruit juice may increase the plasma concentrations of panobinostat. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. Increased exposure to panobinostat may increase the risk of adverse effects such as nausea, vomiting, diarrhea, anorexia, peripheral edema, cardiotoxicity, ECG abnormalities, electrolyte disturbances, bleeding complications, hepatotoxicity, and myelosuppression.

Food may delay the rate of absorption of panobinostat, but does not significantly affect the overall extent of absorption. When a single oral dose of panobinostat was administered to 36 patients with advanced cancer 30 minutes after a high-fat meal, panobinostat peak plasma concentration (Cmax) and systemic exposure (AUC) were approximately 44% and 16% lower, respectively, compared to administration under fasting conditions. The median time to maximum concentration (Tmax) was prolonged by 2.5 hours.

MANAGEMENT: Patients should avoid consumption of grapefruit or grapefruit juice during treatment with panobinostat. The manufacturer also recommends avoiding star fruit, Seville oranges, pomegranate, and pomegranate juice. Panobinostat may be administered with or without food.

References

  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. Cerner Multum, Inc. "Australian Product Information."
  3. (2015) "Product Information. Farydak (panobinostat)." Novartis Pharmaceuticals

Switch to consumer interaction data

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.

See also

Report options

Loading...
QR code containing a link to this page

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.

Medical Disclaimer