Substances: Beta blockers

Beta-blockers are used in the treatment of high blood pressure and other heart problems. 

Athletes may use beta-blockers illegally to try to stop their hands and bodies from shaking while competing in precision sports that require accuracy, a calm state and/or a steady hand.

Side effects

Use of beta-blockers in the absence of some type of cardiac dysfunction may result in lowered blood pressure or decreased heart rate. Beta-blockers might also induce tiredness and decrease performance capacity in endurance events.

Status in Sport

Beta-blockers are classified as a prohibited substance in particular sports under the World Anti-Doping Code 2007 Prohibited List (effective from 01/01/07).

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This page last updated Tuesday, January 22, 2008

Copyright © 2008, Australian Sports Anti-Doping Authority (ASADA)