Drug interactions
Apalutamide + Chlorpheniramine
Severity: Minor
Apalutamide and Chlorpheniramine: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Apalutamide may reduce chlorpheniramine levels, leading to diminished antihistaminic effect. The consequence is typically minor and easily managed.
What this interaction means in plain words
Apalutamide and Chlorpheniramine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Apalutamide belongs to Endocrine; Chlorpheniramine belongs to Respiratory.
Why it happens
CYP3A4 induction increases chlorpheniramine metabolism.
What to do
No routine action is needed; increase dose or switch antihistamine if symptom control is lost.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Apalutamide and Chlorpheniramine, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Apalutamide
- Apalutamide + Cabotegravir Contraindicated
- Apalutamide + Cobicistat Contraindicated
- Apalutamide + Doravirine Contraindicated
- Apalutamide + Elbasvir / grazoprevir Contraindicated
- Apalutamide + Ensitrelvir Contraindicated
- Apalutamide + Fostemsavir Contraindicated
Other interactions of Chlorpheniramine
Frequently asked questions
Can I take Apalutamide with Chlorpheniramine?
MediHelp rates the interaction as minor. Apalutamide and Chlorpheniramine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Apalutamide may reduce chlorpheniramine levels, leading to diminished antihistaminic effect. The consequence is typically minor and easily managed.
How serious is the interaction between Apalutamide and Chlorpheniramine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine action is needed; increase dose or switch antihistamine if symptom control is lost.
What other medicines interact with Apalutamide?
MediHelp also lists interactions of Apalutamide with, for example, Cabotegravir, Cobicistat, Doravirine. The full list is on the Apalutamide page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
