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Drug Interactions between GoLYTELY and panobinostat

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

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Interactions between your drugs

Major

polyethylene glycol 3350 with electrolytes panobinostat

Applies to: GoLYTELY (polyethylene glycol 3350 with electrolytes) and panobinostat

MONITOR CLOSELY: The use of bowel cleansing preparations may increase the risk of ventricular arrhythmia, particularly torsade de pointes, in patients treated with drugs that prolong the QT interval. Severe and potentially fatal cases of electrolyte disorders and arrhythmias have been reported in elderly patients using bowel cleansing products. Electrolyte disturbances including hypokalemia and hypomagnesemia are known risk factors for torsade de pointes associated with QT interval prolongation.

MANAGEMENT: Caution is advised when bowel cleansing preparations are prescribed in patients treated with drugs that prolong the QT interval. Monitoring of baseline and posttreatment serum electrolyte levels is recommended, particularly in the elderly. Patients should be instructed to drink plenty of clear liquids before, during, and after the bowel preparation process. Consideration should be given to consumption of 36 to 48 fluid ounces of a carbohydrate-electrolyte solution in the six hours before the first dose. Patients should be advised to seek prompt medical attention if they experience symptoms that could indicate the occurrence of torsade de pointes such as dizziness, lightheadedness, fainting, palpitation, irregular heart rhythm, shortness of breath, or syncope.

References (7)
  1. Hill AG, Parry BR (1996) "Hypokalaemia following bowel cleansing with sodium phosphate." N Z Med J, 109, p. 347
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  3. (2007) "Product Information. Fleet Phospho Soda (sodium acid phosphate-sodium phosphate)." Fleet, CB
  4. (2007) "Product Information. Visicol (sodium acid phosphate-sodium phosphate)." Salix Pharmaceuticals
  5. Cerner Multum, Inc. "Australian Product Information."
  6. (2010) "Product Information. Suprep Bowel Prep Kit (magnesium/potassium/sodium sulfates)." Braintree Laboratories
  7. (2013) "Product Information. Suclear (polyethylene glycol 3350 with electrolytes)." Braintree Laboratories

Drug and food interactions

Moderate

polyethylene glycol 3350 with electrolytes food

Applies to: GoLYTELY (polyethylene glycol 3350 with electrolytes)

ADJUST DOSING INTERVAL: Bowel cleansing products can increase the gastrointestinal transit rate. Oral medications administered within one hour of the start of administration of the bowel cleansing solution may be flushed from the gastrointestinal tract and not properly absorbed.

MANAGEMENT: Patients should be advised that absorption of oral medications may be impaired during bowel cleansing treatment. Oral medications (e.g., anticonvulsants, oral contraceptives, antidiabetic agents, antibiotics) should not be administered during and within one hour of starting bowel cleansing treatment whenever possible. However, if concomitant use cannot be avoided, monitoring for reduced therapeutic effects may be advisable.

References (2)
  1. "Product Information. Golytely (polyethylene glycol 3350 with electrolytes)." Braintree
  2. (2022) "Product Information. Prepopik (citric acid/Mg oxide/Na picosulfate)." Ferring Pharmaceuticals Inc
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 (3)
  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. Cerner Multum, Inc. "Australian Product Information."
  3. (2015) "Product Information. Farydak (panobinostat)." Novartis Pharmaceuticals

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

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