Drug interactions
Famotidine + Serdexmethylphenidate / dexmethylphenidate
Severity: Minor
Famotidine and Serdexmethylphenidate / dexmethylphenidate: 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
Raised gastric pH may alter release of extended-release methylphenidate-type products, potentially increasing drug exposure and stimulant effects.
What this interaction means in plain words
Famotidine and Serdexmethylphenidate / dexmethylphenidate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Higher gastric pH may change pH-dependent release of extended-release formulations.
What to do
Monitor heart rate, blood pressure and stimulant adverse effects, and adjust the stimulant dose if needed.
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?
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Other interactions of Famotidine
Frequently asked questions
Can I take Famotidine with Serdexmethylphenidate / dexmethylphenidate?
MediHelp rates the interaction as minor. Famotidine and Serdexmethylphenidate / dexmethylphenidate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Raised gastric pH may alter release of extended-release methylphenidate-type products, potentially increasing drug exposure and stimulant effects.
How serious is the interaction between Famotidine and Serdexmethylphenidate / dexmethylphenidate?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor heart rate, blood pressure and stimulant adverse effects, and adjust the stimulant dose if needed.
What other medicines interact with Famotidine?
MediHelp also lists interactions of Famotidine with, for example, Atazanavir, Dasatinib, Infigratinib. The full list is on the Famotidine page.
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