Drug reference

labetalol

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.

Drug class

Cardiovascular (Beta Blockers)

Mechanism of action

Nonselective beta blocker with intrinsic sympathomimetic activity; also alpha blocker

Common side effects

  • Lightheadedness
  • Dizziness
  • Fatigue
  • Nausea
  • Tingling sensation of scalp

Contraindications

  • Asthma or obstructive airway disease, severe bradycardia, 2°/3° heart block (without pacemaker), cardiogenic shock, bronchial asthma, uncompensated cardiac failure, hypersensitivity, sinus bradycardia, sick sinus syndrome without permanent pacemaker; conditions associated with prolonged and severe…

Related conditions

Frequently asked questions

What drug class is labetalol?

labetalol belongs to: Cardiovascular.

How does labetalol work?

Nonselective beta blocker with intrinsic sympathomimetic activity; also alpha blocker

What are the common side effects of labetalol?

Lightheadedness, Dizziness, Fatigue, Nausea, Tingling sensation of scalp

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