Drug interactions
Magnesium oxide + Methylphenidate
Severity: Moderate
Magnesium oxide and Methylphenidate: moderate 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
Antacids raise gastric pH, which can change release from pH-dependent extended-release methylphenidate capsules. The result may be altered or erratic drug release.
What this interaction means in plain words
Magnesium oxide and Methylphenidate can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Magnesium oxide belongs to Gastrointestinal Tract; Methylphenidate belongs to Central Nervous System.
Why it happens
Increased gastric pH alters release of pH-dependent extended-release methylphenidate.
What to do
Separate the antacid from extended-release methylphenidate, ideally avoiding co-administration, and monitor clinical response.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Magnesium oxide and Methylphenidate, 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 14 days on the web. No card needed.
Other interactions of Methylphenidate
- Isocarboxazid + Methylphenidate Contraindicated
- Linezolid + Methylphenidate Contraindicated
- Methylphenidate + Phenelzine Contraindicated
- Methylphenidate + Procarbazine Contraindicated
- Methylphenidate + Rasagiline Contraindicated
- Methylphenidate + Safinamide Contraindicated
Other interactions of Magnesium oxide
- Chloroquine + Magnesium oxide Moderate
- Ciprofloxacin + Magnesium oxide Moderate
- Dolutegravir + Magnesium oxide Moderate
- Doxycycline + Magnesium oxide Moderate
- Eltrombopag + Magnesium oxide Moderate
- Gemifloxacin + Magnesium oxide Moderate
Frequently asked questions
Can I take Magnesium oxide with Methylphenidate?
MediHelp rates the interaction as moderate. Magnesium oxide and Methylphenidate can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Antacids raise gastric pH, which can change release from pH-dependent extended-release methylphenidate capsules. The result may be altered or erratic drug release.
How serious is the interaction between Magnesium oxide and Methylphenidate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Separate the antacid from extended-release methylphenidate, ideally avoiding co-administration, and monitor clinical response.
What other medicines interact with Methylphenidate?
MediHelp also lists interactions of Methylphenidate with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Methylphenidate 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.
