HomeMethylphenidate Hydrochloride Extended ReleaseMethylphenidate Hydrochloride Extended Release + Isocarboxazid

Does Methylphenidate Hydrochloride Extended Release Interact with Isocarboxazid?

Methylphenidate Hydrochloride Extended Release and Isocarboxazid have a contraindicated drug interaction according to U.S. FDA drug labeling data. Concomitant use can cause hypertensive crisis with potential outcomes including death, stroke, myocardial infarction, aortic dissection, and renal failure. The mechanism involves maoi interaction with cns stimulant. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.

Severity
Contraindicated
Management
Do not take together
Data Source
U.S. FDA via OpenFDA

How This Interaction Works

The interaction between Methylphenidate Hydrochloride Extended Release and Isocarboxazid occurs because maoi interaction with cns stimulant. Clinically, this means concomitant use can cause hypertensive crisis with potential outcomes including death, stroke, myocardial infarction, aortic dissection, and renal failure. Because of the severity of this interaction, these medications are contraindicated — meaning they should not be taken together under any circumstances. If you are currently taking both, contact your healthcare provider immediately to discuss alternatives.

What To Tell Your Doctor or Pharmacist

If you are taking Methylphenidate Hydrochloride Extended Release and your doctor is considering prescribing Isocarboxazid (or vice versa), make sure to:

  • Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
  • Ask whether the benefits of combining these medications outweigh the risks for your specific situation
  • Ask what symptoms to watch for that would indicate the interaction is causing problems
  • Ask about alternative medications that do not interact with your current regimen
  • Ask how frequently you should be monitored while these are co-prescribed
  • Never stop or change either medication without first consulting your healthcare provider
💊 Methylphenidate Hydrochloride Extended Release(Quillivant)+💊 Isocarboxazid(Marplan)

Severity & Interaction Details

contraindicated
Avoid this combination
FDA labeling lists this pair as contraindicated. The risk outweighs the benefit in nearly all cases.
Severity scale
MinorContra
On record
Yes
Drug A class
Drug B class
Source
NLP:methylphenidate hydrochloride extended release

What this means in plain English

Concomitant use can cause hypertensive crisis with potential outcomes including death, stroke, myocardial infarction, aortic dissection, and renal failure.

About Methylphenidate Hydrochloride Extended Release and Isocarboxazid

You may recognize them by the brand names Quillivant and Marplan. Methylphenidate Hydrochloride Extended Release is taken by mouth. Methylphenidate Hydrochloride Extended Release additionally carries an FDA boxed warning, the FDA's strongest safety alert.

What the FDA label says

"MAOI interaction with CNS stimulant"

📖 Source: NLP:methylphenidate hydrochloride extended release

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Data integrity: Every interaction shown is extracted directly from official U.S. FDA drug labeling via openFDA and the U.S. National Library of Medicine (NIH) — no interactions are invented, inferred, or manually edited. Maintained by CheckDrugInteractions.com. See our methodology or report a correction at support@checkdruginteractions.com.

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine, supplemented with a small number of well-established interactions from curated clinical references. For informational purposes only. Always consult your pharmacist or physician.