Why can hydralazine hydrochloride make the heart beat faster?

iatroX medicinesPublished 20 August 2026Reviewed 20 August 2026

The answer

Answer

Arterial dilation lowers vascular resistance, and reflex sympathetic activation may increase heart rate and cause palpitations.

Hydralazine 25 mg Tablets / Apresoline 25 mg Tabletsemc · SmPC Current selected SmPC · Version 18

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hydralazine hydrochloride · Medicine question

iatroX medicinesPublished 20 August 2026Reviewed 20 August 2026

The answer

Arterial dilation lowers vascular resistance, and reflex sympathetic activation may increase heart rate and cause palpitations.

Hydralazine 25 mg Tablets / Apresoline 25 mg Tabletsemc · SmPC Current selected SmPC · Version 18

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