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Drug interactions

Hydralazine + Serdexmethylphenidate / dexmethylphenidate

Severity: Moderate

Hydralazine and Serdexmethylphenidate / dexmethylphenidate: 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

Methylphenidate-type stimulants can raise blood pressure and heart rate. This may reduce the effect of hydralazine and lead to poorer blood pressure control. Additive tachycardia is also possible.

What this interaction means in plain words

Hydralazine and Serdexmethylphenidate / dexmethylphenidate 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.

Evidence level: Moderate

Why it happens

Sympathomimetic stimulation through increased catecholamine availability opposes the vasodilating effect of hydralazine.

What to do

Monitor blood pressure and heart rate at baseline and during treatment. Adjust the antihypertensive regimen or the stimulant dose if hypertension develops.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Hydralazine with Serdexmethylphenidate / dexmethylphenidate?

MediHelp rates the interaction as moderate. Hydralazine and Serdexmethylphenidate / dexmethylphenidate 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. Methylphenidate-type stimulants can raise blood pressure and heart rate. This may reduce the effect of hydralazine and lead to poorer blood pressure control. Additive tachycardia is also possible.

How serious is the interaction between Hydralazine and Serdexmethylphenidate / dexmethylphenidate?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and heart rate at baseline and during treatment. Adjust the antihypertensive regimen or the stimulant dose if hypertension develops.

What other medicines interact with Hydralazine?

MediHelp also lists interactions of Hydralazine with, for example, Amifostine, Aceclofenac, Acemetacin. The full list is on the Hydralazine page.

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