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Drug Interaction Report

1 drug interaction and 26 additional warnings found for the following 2 drugs:

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Drug interactions

Moderate drug interactions

Moderate:

quiNIDine vadadustat

Applies to: quinidine, Vafseo (vadadustat)

Vadadustat may increase the blood levels and effects of quiNIDine.

You may need more frequent monitoring by your doctor 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:

Food/Lifestyle quiNIDine

Applies to: quinidine

Do not consume grapefruit or grapefruit juice during treatment with quiNIDine unless specifically directed otherwise by your doctor.

Grapefruit and grapefruit juice can interact with quiNIDine and increase the levels of quiNIDine in your body.

If you are already consuming grapefruit products, do not increase or decrease the amount of these products in your diet without first talking to your doctor.

Moderate:

Food/Lifestyle vadadustat

Applies to: Vafseo (vadadustat)

Using vadadustat while smoking or drinking alcohol may increase the risk of side effects in the gastrointestinal tract such as stomach inflammation and bleeding.

Talk to your doctor if you have any questions or concerns.

You should seek immediate medical attention if you have signs and symptoms of gastrointestinal bleeding such as:

  • abdominal pain
  • coughing up or vomiting fresh or dried blood that looks like coffee grounds
  • black, tarry stools
  • trouble swallowing
  • chest or throat pain

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.

Disease interactions

24 potential interactionsApplies to: 23 conditions, including High Blood Pressure, Heart Failure, Seizures, Breast Cancer, and Hypokalemia.

Alcoholism

Moderate:

Vafseo

The vadadustat in Vafseo has a moderate potential interaction with Alcoholism.

Esophageal and gastrointestinal erosions have been reported with the use of vadadustat. Some cases of serious gastrointestinal bleeding required the need for red blood cell transfusions. Patients with history of gastrointestinal erosion, peptic ulcer disease, tobacco smokers and alcohol drinkers are at increased risk.

Bladder Cancer

Moderate:

Vafseo

The vadadustat in Vafseo has a moderate potential interaction with Bladder Cancer.

An increase in hypoxia inducible factor (HIF) levels may be associated with unfavorable effects on cancer growth. The use of vadadustat has not been studied and is not recommended in patients with active malignancies.

Breast Cancer

Moderate:

Vafseo

The vadadustat in Vafseo has a moderate potential interaction with Breast Cancer.

An increase in hypoxia inducible factor (HIF) levels may be associated with unfavorable effects on cancer growth. The use of vadadustat has not been studied and is not recommended in patients with active malignancies.

Cardiovascular Conditions and Disorders

Moderate:

Vafseo

The vadadustat in Vafseo has a moderate potential interaction with Cardiovascular Conditions and Disorders.

Vadadustat increases the risk of arterial and venous thrombotic events, including major adverse cardiovascular events. Patients with cardiovascular or cerebrovascular disease are at increased risk. Avoid the use of this drug in patients with history of myocardial infarction, cerebrovascular events, or acute coronary syndrome within the 3 months prior to starting treatment.

Esophageal Disease

Moderate:

Vafseo

The vadadustat in Vafseo has a moderate potential interaction with Esophageal Disease.

Esophageal and gastrointestinal erosions have been reported with the use of vadadustat. Some cases of serious gastrointestinal bleeding required the need for red blood cell transfusions. Patients with history of gastrointestinal erosion, peptic ulcer disease, tobacco smokers and alcohol drinkers are at increased risk.

Gastrointestinal Hemorrhage

Moderate:

Vafseo

The vadadustat in Vafseo has a moderate potential interaction with Gastrointestinal Hemorrhage.

Esophageal and gastrointestinal erosions have been reported with the use of vadadustat. Some cases of serious gastrointestinal bleeding required the need for red blood cell transfusions. Patients with history of gastrointestinal erosion, peptic ulcer disease, tobacco smokers and alcohol drinkers are at increased risk.

Glaucoma/Intraocular Hypertension

Major:

quinidine

quiNIDine has a major potential interaction with Glaucoma/Intraocular Hypertension.

The use of quinidine is contraindicated in patients with preexisting conditions that are likely to be exacerbated by anticholinergic activity, such as myasthenia gravis, glaucoma, and urinary retention or obstruction.

Heart Block

Major:

quinidine

quiNIDine has a major potential interaction with Heart Block.

The use of quinidine is contraindicated for use in patients without a functioning artificial pacemaker whose cardiac rhythm is dependent upon a junctional or idioventricular pacemaker, including patients with complete AV block. Therapy with quinidine should be administered with caution in patients with severe sinus-node dysfunction such as sick sinus syndrome, bradycardia-tachycardia syndrome, or second- or third-degree heart block.

Heart Failure

Major:

quinidine

quiNIDine has a major potential interaction with Heart Failure.

Antiarrhythmic agents can induce severe hypotension (particularly with IV administration) or induce or worsen congestive heart failure (CHF). Patients with primary cardiomyopathy or inadequately compensated CHF are at increased risk. Antiarrhythmic agents should be administered cautiously and dosage and/or frequency of administration modified in patients with hypotension or adequately compensated CHF. Alternative therapy should be considered unless these conditions are secondary to cardiac arrhythmia.

High Blood Pressure

Major:

Vafseo

The vadadustat in Vafseo has a major potential interaction with High Blood Pressure.

Vadadustat is contraindicated in patients with uncontrolled hypertension as cases of hypertensive crisis including hypertensive encephalopathy and seizures have been reported. Patients with history of seizure disorders receiving this drug should be monitored closely and should contact their health care provider for premonitory symptoms or change in seizure frequency.

Hyperkalemia

Moderate:

quinidine

quiNIDine has a moderate potential interaction with Hyperkalemia.

Electrolyte imbalance can alter the therapeutic effectiveness of antiarrhythmic agents. Hypokalemia and hypomagnesemia can reduce the effectiveness of antiarrhythmic agents. In some cases, these disorders can exaggerate the degree of QTc prolongation and increase the potential for torsade de pointes. Hyperkalemia can potentiate the toxic effects of antiarrhythmic agents. Electrolyte imbalance should be corrected prior to initiating antiarrhythmic therapy. Clinical monitoring of cardiac function and electrolyte concentrations is recommended.

Hypokalemia

Moderate:

quinidine

quiNIDine has a moderate potential interaction with Hypokalemia.

Electrolyte imbalance can alter the therapeutic effectiveness of antiarrhythmic agents. Hypokalemia and hypomagnesemia can reduce the effectiveness of antiarrhythmic agents. In some cases, these disorders can exaggerate the degree of QTc prolongation and increase the potential for torsade de pointes. Hyperkalemia can potentiate the toxic effects of antiarrhythmic agents. Electrolyte imbalance should be corrected prior to initiating antiarrhythmic therapy. Clinical monitoring of cardiac function and electrolyte concentrations is recommended.

Hypotension

Major:

quinidine

quiNIDine has a major potential interaction with Hypotension.

Antiarrhythmic agents can induce severe hypotension (particularly with IV administration) or induce or worsen congestive heart failure (CHF). Patients with primary cardiomyopathy or inadequately compensated CHF are at increased risk. Antiarrhythmic agents should be administered cautiously and dosage and/or frequency of administration modified in patients with hypotension or adequately compensated CHF. Alternative therapy should be considered unless these conditions are secondary to cardiac arrhythmia.

Liver Disease

Moderate:

quinidine

quiNIDine has a moderate potential interaction with Liver Disease.

Quinidine is primarily metabolized by the liver to active and inactive forms. Hepatic dysfunction causes a slowed metabolism and elimination of the drug which can lead to quinidine toxicity if dosage is not appropriately reduced. Clinical monitoring of hepatic function is recommended.

Moderate:

Vafseo

The vadadustat in Vafseo has a moderate potential interaction with Liver Disease.

Vadadustat may cause hepatotoxicity. Liver enzymes and bilirubin should be measured prior to treatment initiation and monitored during treatment. This drug is not recommended in patients with cirrhosis, or active, acute liver disease.

Lung Cancer

Moderate:

Vafseo

The vadadustat in Vafseo has a moderate potential interaction with Lung Cancer.

An increase in hypoxia inducible factor (HIF) levels may be associated with unfavorable effects on cancer growth. The use of vadadustat has not been studied and is not recommended in patients with active malignancies.

Magnesium Imbalance

Moderate:

quinidine

quiNIDine has a moderate potential interaction with Magnesium Imbalance.

Electrolyte imbalance can alter the therapeutic effectiveness of antiarrhythmic agents. Hypokalemia and hypomagnesemia can reduce the effectiveness of antiarrhythmic agents. In some cases, these disorders can exaggerate the degree of QTc prolongation and increase the potential for torsade de pointes. Hyperkalemia can potentiate the toxic effects of antiarrhythmic agents. Electrolyte imbalance should be corrected prior to initiating antiarrhythmic therapy. Clinical monitoring of cardiac function and electrolyte concentrations is recommended.

Myasthenia Gravis

Major:

quinidine

quiNIDine has a major potential interaction with Myasthenia Gravis.

The use of quinidine is contraindicated in patients with preexisting conditions that are likely to be exacerbated by anticholinergic activity, such as myasthenia gravis, glaucoma, and urinary retention or obstruction.

Prostate Cancer

Moderate:

Vafseo

The vadadustat in Vafseo has a moderate potential interaction with Prostate Cancer.

An increase in hypoxia inducible factor (HIF) levels may be associated with unfavorable effects on cancer growth. The use of vadadustat has not been studied and is not recommended in patients with active malignancies.

Renal Dysfunction

Moderate:

quinidine

quiNIDine has a moderate potential interaction with Renal Dysfunction.

Renal dysfunction causes a slowed elimination of quinidine which can lead to quinidine toxicity if dosage is not appropriately reduced. Therapy with quinidine should be administered cautiously and dosages reduced in patients with compromised renal function. Quinidine is not appreciably removed by hemodialysis.

Seizures

Major:

Vafseo

The vadadustat in Vafseo has a major potential interaction with Seizures.

Vadadustat is contraindicated in patients with uncontrolled hypertension as cases of hypertensive crisis including hypertensive encephalopathy and seizures have been reported. Patients with history of seizure disorders receiving this drug should be monitored closely and should contact their health care provider for premonitory symptoms or change in seizure frequency.

Skin Cancer

Moderate:

Vafseo

The vadadustat in Vafseo has a moderate potential interaction with Skin Cancer.

An increase in hypoxia inducible factor (HIF) levels may be associated with unfavorable effects on cancer growth. The use of vadadustat has not been studied and is not recommended in patients with active malignancies.

Smoking

Moderate:

Vafseo

The vadadustat in Vafseo has a moderate potential interaction with Smoking.

Esophageal and gastrointestinal erosions have been reported with the use of vadadustat. Some cases of serious gastrointestinal bleeding required the need for red blood cell transfusions. Patients with history of gastrointestinal erosion, peptic ulcer disease, tobacco smokers and alcohol drinkers are at increased risk.

Urinary Retention

Major:

quinidine

quiNIDine has a major potential interaction with Urinary Retention.

The use of quinidine is contraindicated in patients with preexisting conditions that are likely to be exacerbated by anticholinergic activity, such as myasthenia gravis, glaucoma, and urinary retention or obstruction.

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.

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.