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Drug Interactions between Pancof EXP and vadadustat

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

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Interactions between your drugs

Moderate

dihydrocodeine vadadustat

Applies to: Pancof EXP (dihydrocodeine / guaifenesin / pseudoephedrine) and vadadustat

MONITOR: Coadministration with vadadustat may increase the plasma concentrations of drugs that are substrates of the CYP450 3A4 and/or CYP450 2C8 isoenzymes. Vadadustat is an inhibitor of CYP450 3A4 and CYP450 2C8 in vitro. However, clinical data are not available.

MANAGEMENT: Some authorities recommend using caution when vadadustat is used concomitantly with drugs that are substrates of CYP450 3A4 and/or CYP450 2C8, particularly sensitive substrates or those with a narrow therapeutic range. Monitoring for signs and symptoms of increased exposure to the CYP450 3A4 and/or CYP450 2C8 substrate should be considered whenever vadadustat is added to or withdrawn from therapy. The prescribing information for concomitant medications may be consulted to assess the benefits versus risks of coadministration, as well as any dosage adjustments that may be required during coadministration and/or following the discontinuation of a CYP450 3A4 and/or CYP450 2C8 inhibitor.

References (3)
  1. (2023) "Product Information. Vafseo (vadadustat)." Adjutor Healthcare Pty Ltd
  2. (2024) "Product Information. Vafseo (vadadustat)." Akebia Therapeutics
  3. (2024) "Product Information. Vafseo (vadadustat)." Medice UK Ltd

Drug and food interactions

Moderate

vadadustat food

Applies to: vadadustat

MONITOR: Smoking and alcohol consumption during therapy with vadadustat may increase the risk of gastrointestinal erosions. Serious erosions, including gastrointestinal bleeding and the need for red blood cell transfusions, have been reported during vadadustat clinical trials. Patients with a history of gastrointestinal erosion, peptic ulcer disease, and current tobacco smokers and alcohol drinkers may be at higher risk of gastrointestinal injury.

MANAGEMENT: Caution is advised if vadadustat is prescribed to current tobacco smokers or alcohol drinkers. Patients should be advised to contact their physician if they develop potential signs and symptoms of gastrointestinal injury such as abdominal pain, hematemesis, trouble swallowing, chest or throat pain, and/or black, tarry stools.

References (3)
  1. (2023) "Product Information. Vafseo (vadadustat)." Adjutor Healthcare Pty Ltd
  2. (2024) "Product Information. Vafseo (vadadustat)." Akebia Therapeutics
  3. (2024) "Product Information. Vafseo (vadadustat)." Medice UK Ltd
Moderate

pseudoephedrine food

Applies to: Pancof EXP (dihydrocodeine / guaifenesin / pseudoephedrine)

MONITOR: Coadministration of two or more sympathomimetic agents may increase the risk of adverse effects such as nervousness, irritability, and increased heart rate. Central nervous system (CNS) stimulants, particularly amphetamines, can potentiate the adrenergic response to vasopressors and other sympathomimetic agents. Additive increases in blood pressure and heart rate may occur due to enhanced peripheral sympathetic activity.

MANAGEMENT: Caution is advised if two or more sympathomimetic agents are coadministered. Pulse and blood pressure should be closely monitored.

References (7)
  1. Rosenblatt JE, Lake CR, van Kammen DP, Ziegler MG, Bunney WE Jr (1979) "Interactions of amphetamine, pimozide, and lithium on plasma norepineophrine and dopamine-beta-hydroxylase in schizophrenic patients." Psychiatry Res, 1, p. 45-52
  2. Cavanaugh JH, Griffith JD, Oates JA (1970) "Effect of amphetamine on the pressor response to tyramine: formation of p-hydroxynorephedrine from amphetamine in man." Clin Pharmacol Ther, 11, p. 656
  3. (2001) "Product Information. Adderall (amphetamine-dextroamphetamine)." Shire Richwood Pharmaceutical Company Inc
  4. (2001) "Product Information. Tenuate (diethylpropion)." Aventis Pharmaceuticals
  5. (2001) "Product Information. Sanorex (mazindol)." Novartis Pharmaceuticals
  6. (2001) "Product Information. Focalin (dexmethylphenidate)." Mikart Inc
  7. (2002) "Product Information. Strattera (atomoxetine)." Lilly, Eli and Company

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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