Methylphenidate and Metolazone interaction
Methylphenidate and Metolazone: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Methylphenidate (Methylphenidate Extended-Release) label · effective 2026-06-16
Antihypertensive Drugs: Monitor blood pressure.
Adjust dosage of antihypertensive drug as needed.
Antihypertensive Drugs Clinical Impact Methylphenidate extended-release orally disintegrating tablets may decrease the effectiveness of drug used to treat hypertension [see Warnings and Precautions (5.3) ].
Intervention Monitor blood pressure and adjust the dosage of the antihypertensive drug as needed.
From the Metolazone label · effective 2026-01-15
Sympathomimetics Metolazone may decrease arterial responsiveness to norepinephrine, but this diminution is not sufficient to preclude effectiveness of the pressor agent for therapeutic use.
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.