Drug interactions
Metformin + Methamphetamine
Severity: Minor
Metformin and Methamphetamine: 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
Methamphetamine can raise blood glucose through sympathomimetic effects, which may partly oppose metformin's glucose-lowering effect. Appetite suppression and weight loss may also change glucose control over time.
What this interaction means in plain words
Metformin and Methamphetamine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Metformin belongs to Endocrine; Methamphetamine belongs to Central Nervous System.
Why it happens
Pharmacodynamic antagonism through catecholamine-mediated glycogenolysis and reduced insulin sensitivity.
What to do
Monitor blood glucose when starting, stopping or changing the dose of methamphetamine, and adjust diabetes therapy 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 Methamphetamine
- Isocarboxazid + Methamphetamine Contraindicated
- Linezolid + Methamphetamine Contraindicated
- Methamphetamine + Phenelzine Contraindicated
- Methamphetamine + Procarbazine Contraindicated
- Methamphetamine + Rasagiline Contraindicated
- Methamphetamine + Safinamide Contraindicated
Other interactions of Metformin
Frequently asked questions
Can I take Metformin with Methamphetamine?
MediHelp rates the interaction as minor. Metformin and Methamphetamine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Methamphetamine can raise blood glucose through sympathomimetic effects, which may partly oppose metformin's glucose-lowering effect. Appetite suppression and weight loss may also change glucose control over time.
How serious is the interaction between Metformin and Methamphetamine?
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 blood glucose when starting, stopping or changing the dose of methamphetamine, and adjust diabetes therapy if needed.
What other medicines interact with Methamphetamine?
MediHelp also lists interactions of Methamphetamine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Methamphetamine page.
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