Drug interactions
Lisdexamfetamine + Lofexidine
Severity: Minor
Lisdexamfetamine and Lofexidine: 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
Lofexidine is a sedating alpha-2 agonist that lowers blood pressure and heart rate, whereas lisdexamfetamine is a stimulant that raises them. Their effects are partly opposing and unpredictable, and neither drug reliably offsets the other's adverse effects.
What this interaction means in plain words
Lisdexamfetamine and Lofexidine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Lisdexamfetamine belongs to Central Nervous System; Lofexidine belongs to Central Nervous System.
Why it happens
Opposing pharmacodynamic effects on sympathetic tone and arousal; no established pharmacokinetic interaction.
What to do
Monitor blood pressure, heart rate and sedation when used together. Adjust doses based on clinical response.
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 Lisdexamfetamine
- Isocarboxazid + Lisdexamfetamine Contraindicated
- Linezolid + Lisdexamfetamine Contraindicated
- Lisdexamfetamine + Phenelzine Contraindicated
- Lisdexamfetamine + Procarbazine Contraindicated
- Lisdexamfetamine + Rasagiline Contraindicated
- Lisdexamfetamine + Safinamide Contraindicated
Other interactions of Lofexidine
- Adagrasib + Lofexidine Major
- Alfuzosin + Lofexidine Major
- Amiodarone + Lofexidine Major
- Amisulpride + Lofexidine Major
- Anagrelide + Lofexidine Major
- Apomorphine + Lofexidine Major
Frequently asked questions
Can I take Lisdexamfetamine with Lofexidine?
MediHelp rates the interaction as minor. Lisdexamfetamine and Lofexidine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Lofexidine is a sedating alpha-2 agonist that lowers blood pressure and heart rate, whereas lisdexamfetamine is a stimulant that raises them. Their effects are partly opposing and unpredictable, and neither drug reliably offsets the other's adverse effects.
How serious is the interaction between Lisdexamfetamine and Lofexidine?
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 pressure, heart rate and sedation when used together. Adjust doses based on clinical response.
What other medicines interact with Lisdexamfetamine?
MediHelp also lists interactions of Lisdexamfetamine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Lisdexamfetamine page.
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