Can you take Dofetilide with Sodium phenylbutyrate / taurursodiol?
1 drug interaction and 21 additional warnings found for the following 2 drugs:
- dofetilide
- sodium phenylbutyrate/taurursodiol
Drug interactions
Moderate drug interactions
Moderate:
dofetilide taurursodiol
Applies to: dofetilide and sodium phenylbutyrate / taurursodiol
Taurursodiol may alter the blood levels and effects of dofetilide. Talk to your doctor if you have any questions or concerns. Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring to safely use both medications. Contact your doctor if your condition changes or you experience increased side effects. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Food/lifestyle interactions
Moderate food/lifestyle interactions
Moderate:
sodium phenylbutyrate Food/Lifestyle
Applies to: sodium phenylbutyrate / taurursodiol
Food may affect the absorption of sodium phenylbutyrate. A high-fat, high-calorie meal (approximately 800 to 1000 calories; 500 to 600 calories from fat, 250 calories from carbohydrate, 150 calories from protein) has been shown to reduce the absorption of sodium phenylbutyrate, although it is unknown what impact this may have on the overall effectiveness of the medication. The manufacturer recommends taking sodium phenylbutyrate before a meal or snack. This is especially important if you weigh less than 70 kg (approximately 154 pounds). Talk to your doctor or pharmacist if you have questions on how to take this or other medications you are prescribed. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medication without first talking to your doctor.
Minor food/lifestyle interactions
Minor:
dofetilide Food/Lifestyle
Applies to: dofetilide
Information for this minor interaction is available on the professional version.
Disease interactions
19 potential interactions Applies to: 16 conditions, including Heart Failure, Peripheral Neuropathy, Diarrhea, Hypokalemia, and Gallbladder Disease.
Biliary Obstruction
Moderate:
sodium phenylbutyrate / taurursodiol
The taurursodiol in sodium phenylbutyrate / taurursodiol has a moderate potential interaction with Biliary Obstruction.
Sodium phenylbutyrate-taurursodiol contains taurursodiol, a bile acid. In patients with disorders that interfere with bile acid circulation, there may be an increased risk for diarrhea and patients should be monitored appropriately. Other conditions such as pancreatic insufficiency, intestinal malabsorption, or intestinal diseases that may alter the concentration of bile acids, may also lead to decreased absorption of this drug and its components. Consider consulting with a GI specialists with experience managing these GI disorders. Patients with disorders of enterohepatic circulation (e.g., biliary infection, active cholecystitis, etc.), severe pancreatic disorders (e.g., pancreatitis), and intestinal disorders that may alter concentrations of bile acids (e.g., ileal resection, regional ileitis, etc.) were excluded from clinical studies and there is no experience in patients with these conditions. Caution is advised.
Central Nervous System Disorders
Moderate:
sodium phenylbutyrate / taurursodiol
The sodium phenylbutyrate in sodium phenylbutyrate / taurursodiol has a moderate potential interaction with Central Nervous System Disorders.
Sodium phenylbutyrate is a pro-drug and is rapidly metabolized to the active, phenylacetate. Neurotoxicity, including exacerbation of a preexisting neuropathy, has been reported with the use of intravenous phenylacetate. The acute onset and reversibility when the phenylacetate infusion was discontinued suggested a drug effect. Care should be exercised when prescribing sodium phenylbutyrate to patients at risk for neurotoxicity.
Dehydration
Moderate:
dofetilide
Dofetilide has a moderate potential interaction with Dehydration.
Dofetilide should be avoided in patients that experience symptoms that may be associated with altered electrolyte balance, such as excessive or prolonged diarrhea, sweating, or vomiting or loss of appetite or thirst, these conditions should immediately be reported to their health care provider.
Diarrhea
Moderate:
dofetilide
Dofetilide has a moderate potential interaction with Diarrhea.
Dofetilide should be avoided in patients that experience symptoms that may be associated with altered electrolyte balance, such as excessive or prolonged diarrhea, sweating, or vomiting or loss of appetite or thirst, these conditions should immediately be reported to their health care provider.
Electrolyte Abnormalities
Moderate:
dofetilide
Dofetilide has a moderate potential interaction with Electrolyte Abnormalities.
Dofetilide should be avoided in patients that experience symptoms that may be associated with altered electrolyte balance, such as excessive or prolonged diarrhea, sweating, or vomiting or loss of appetite or thirst, these conditions should immediately be reported to their health care provider.
Fluid Retention
Major:
sodium phenylbutyrate / taurursodiol
The sodium phenylbutyrate in sodium phenylbutyrate / taurursodiol has a major potential interaction with Fluid Retention.
The use of sodium phenylbutyrate may cause fluid retention in patients with congestive heart failure, renal dysfunction, or sodium retention with edema. Sodium phenylbutyrate is primarily excreted by the kidney and these patients may exhibit reduced excretion. Therapy with sodium phenylbutyrate should be administered cautiously in these patients. Monitoring plasma levels of ammonia, arginine, branched-chain amino acids and serum proteins to maintain within normal limits and glutamine to less than 1000 mcmol/L is recommended.
Gallbladder Disease
Moderate:
sodium phenylbutyrate / taurursodiol
The taurursodiol in sodium phenylbutyrate / taurursodiol has a moderate potential interaction with Gallbladder Disease.
Sodium phenylbutyrate-taurursodiol contains taurursodiol, a bile acid. In patients with disorders that interfere with bile acid circulation, there may be an increased risk for diarrhea and patients should be monitored appropriately. Other conditions such as pancreatic insufficiency, intestinal malabsorption, or intestinal diseases that may alter the concentration of bile acids, may also lead to decreased absorption of this drug and its components. Consider consulting with a GI specialists with experience managing these GI disorders. Patients with disorders of enterohepatic circulation (e.g., biliary infection, active cholecystitis, etc.), severe pancreatic disorders (e.g., pancreatitis), and intestinal disorders that may alter concentrations of bile acids (e.g., ileal resection, regional ileitis, etc.) were excluded from clinical studies and there is no experience in patients with these conditions. Caution is advised.
Heart Failure
Major:
sodium phenylbutyrate / taurursodiol
The sodium phenylbutyrate in sodium phenylbutyrate / taurursodiol has a major potential interaction with Heart Failure.
The use of sodium phenylbutyrate may cause fluid retention in patients with congestive heart failure, renal dysfunction, or sodium retention with edema. Sodium phenylbutyrate is primarily excreted by the kidney and these patients may exhibit reduced excretion. Therapy with sodium phenylbutyrate should be administered cautiously in these patients. Monitoring plasma levels of ammonia, arginine, branched-chain amino acids and serum proteins to maintain within normal limits and glutamine to less than 1000 mcmol/L is recommended.
Hypokalemia
Moderate:
dofetilide
Dofetilide has a moderate potential interaction with Hypokalemia.
Serum potassium should be maintained within the normal range before dofetilide treatment is initiated and should be maintained within the normal range while the patient remains on dofetilide therapy. In clinical trials, potassium levels were generally maintained above 3.6 to 4.0 mEq/L. Exercise care when using this agent in patients with hypokalemia.
Liver Disease
Moderate:
dofetilide
Dofetilide has a moderate potential interaction with Liver Disease.
Dofetilide has not been studied in patients with severe hepatic impairment. Dofetilide should be used with particular caution in these patients.
Moderate:
sodium phenylbutyrate / taurursodiol
The sodium phenylbutyrate in sodium phenylbutyrate / taurursodiol has a moderate potential interaction with Liver Disease.
Sodium phenylbutyrate is primarily metabolized in the liver and kidney. Therapy with sodium phenylbutyrate should be administered cautiously in patients with liver disease. Monitoring plasma levels of ammonia, arginine, branched-chain amino acids and serum proteins to maintain within normal limits and glutamine to less than 1000 mcmol/L is recommended.
Long QT Syndrome
Major:
dofetilide
Dofetilide has a major potential interaction with Long QT Syndrome.
Dofetilide is contraindicated in patients with congenital or acquired long QT syndromes. Dofetilide should not be used in patients with a baseline QT interval of QTc >440 msec (500 msec in patients with ventricular conduction abnormalities).
Malabsorption Syndrome
Moderate:
sodium phenylbutyrate / taurursodiol
The taurursodiol in sodium phenylbutyrate / taurursodiol has a moderate potential interaction with Malabsorption Syndrome.
Sodium phenylbutyrate-taurursodiol contains taurursodiol, a bile acid. In patients with disorders that interfere with bile acid circulation, there may be an increased risk for diarrhea and patients should be monitored appropriately. Other conditions such as pancreatic insufficiency, intestinal malabsorption, or intestinal diseases that may alter the concentration of bile acids, may also lead to decreased absorption of this drug and its components. Consider consulting with a GI specialists with experience managing these GI disorders. Patients with disorders of enterohepatic circulation (e.g., biliary infection, active cholecystitis, etc.), severe pancreatic disorders (e.g., pancreatitis), and intestinal disorders that may alter concentrations of bile acids (e.g., ileal resection, regional ileitis, etc.) were excluded from clinical studies and there is no experience in patients with these conditions. Caution is advised.
Myoneural Disorder
Moderate:
sodium phenylbutyrate / taurursodiol
The sodium phenylbutyrate in sodium phenylbutyrate / taurursodiol has a moderate potential interaction with Myoneural Disorder.
Sodium phenylbutyrate is a pro-drug and is rapidly metabolized to the active, phenylacetate. Neurotoxicity, including exacerbation of a preexisting neuropathy, has been reported with the use of intravenous phenylacetate. The acute onset and reversibility when the phenylacetate infusion was discontinued suggested a drug effect. Care should be exercised when prescribing sodium phenylbutyrate to patients at risk for neurotoxicity.
Peripheral Neuropathy
Moderate:
sodium phenylbutyrate / taurursodiol
The sodium phenylbutyrate in sodium phenylbutyrate / taurursodiol has a moderate potential interaction with Peripheral Neuropathy.
Sodium phenylbutyrate is a pro-drug and is rapidly metabolized to the active, phenylacetate. Neurotoxicity, including exacerbation of a preexisting neuropathy, has been reported with the use of intravenous phenylacetate. The acute onset and reversibility when the phenylacetate infusion was discontinued suggested a drug effect. Care should be exercised when prescribing sodium phenylbutyrate to patients at risk for neurotoxicity.
Renal Dysfunction
Major:
dofetilide
Dofetilide has a major potential interaction with Renal Dysfunction.
Dofetilide is contraindicated in patients with severe renal impairment (calculated creatinine clearance <20 mL/min). The risk of QT interval prolongation, Torsade de Pointes, and ventricular arrhythmias is directly related to dofetilide plasma concentration. A reduced creatinine clearance will increase dofetilide plasma concentration. In patients with mild and moderate renal impairment, the risk of arrhythmias can be reduced by controlling the plasma concentration through adjustment of the initial dofetilide dose according to creatinine clearance. Patients undergoing dialysis were not included in clinical studies, and appropriate dosing recommendations for these patients are unknown. There is no information about the effectiveness of hemodialysis in removing dofetilide from plasma.
Major:
sodium phenylbutyrate / taurursodiol
The sodium phenylbutyrate in sodium phenylbutyrate / taurursodiol has a major potential interaction with Renal Dysfunction.
The use of sodium phenylbutyrate may cause fluid retention in patients with congestive heart failure, renal dysfunction, or sodium retention with edema. Sodium phenylbutyrate is primarily excreted by the kidney and these patients may exhibit reduced excretion. Therapy with sodium phenylbutyrate should be administered cautiously in these patients. Monitoring plasma levels of ammonia, arginine, branched-chain amino acids and serum proteins to maintain within normal limits and glutamine to less than 1000 mcmol/L is recommended.
Moderate:
sodium phenylbutyrate / taurursodiol
The sodium phenylbutyrate in sodium phenylbutyrate / taurursodiol has a moderate potential interaction with Renal Dysfunction.
Sodium phenylbutyrate is primarily metabolized in the liver and kidney. Therapy with sodium phenylbutyrate should be administered cautiously in patients with liver disease. Monitoring plasma levels of ammonia, arginine, branched-chain amino acids and serum proteins to maintain within normal limits and glutamine to less than 1000 mcmol/L is recommended.
Vomiting
Moderate:
dofetilide
Dofetilide has a moderate potential interaction with Vomiting.
Dofetilide should be avoided in patients that experience symptoms that may be associated with altered electrolyte balance, such as excessive or prolonged diarrhea, sweating, or vomiting or loss of appetite or thirst, these conditions should immediately be reported to their health care provider.
More resources
dofetilide
A total of 450 drugs are known to interact with dofetilide.
- Dofetilide is in the drug class group III antiarrhythmics.
- Dofetilide is used to treat Arrhythmia.
sodium phenylbutyrate / taurursodiol
A total of 590 drugs are known to interact with sodium phenylbutyrate / taurursodiol.
- Sodium phenylbutyrate / taurursodiol is in the drug class miscellaneous central nervous system agents.
- Sodium phenylbutyrate / taurursodiol is used to treat Amyotrophic Lateral Sclerosis.
Drug Interaction Classification
| Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
| Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
| 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. | |
| No interaction information available. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.