’s free newsletters."data-newsletterpromo-image="https://static.scientificamerican.com/sciam/cache/file/458BF87F-514B-44EE-B87F5D531772CF83_source.png"data-newsletterpromo-button-text="Sign Up"data-newsletterpromo-button-link="https:// origincode=2018_sciam_Article Promo_Newsletter Sign Up"itemprop="article Body"Yesterday, North Korean Olympic shooter Kim Jong Su was stripped of silver and bronze medals after he tested positive for propranolol. The drug is prescribed for a variety of conditions, from high blood pressure to migraines. You've heard of various doping drugs such as EPO, but why would an Olympian use propranolol? Tell me what propranolol is typically used for, and what it does. (It probably wasn't to treat a hangover, despite some myths about its use for that condition.) For an answer, , and director of the Heart Failure Program at Long Island Jewish Hospital in New Hyde Park, N. Propranolol is a beta-blocker, so it blocks the action of adrenaline. Adrenaline is implicated in a number of effects on the body—high blood pressure and a fast heart beat, for example—so by blocking it, propranolol lowers blood pressure, and heart rate. Doctors often use it to treat patients with high blood pressure, and with heart disease, to keep the heart rate in a reasonable range and not tax the heart muscle, or have it use too much energy. It’s also used to treat other conditions that are mediated by high adrenaline levels, such as tremor and performance anxiety. Fw-300 #ya-qn-sort h2 /* Breadcrumb */ #ya-question-breadcrumb #ya-question-breadcrumb i #ya-question-breadcrumb a #bc .ya-q-full-text, .ya-q-text #ya-question-detail h1 html[lang="zh-Hant-TW"] .ya-q-full-text, html[lang="zh-Hant-TW"] .ya-q-text, html[lang="zh-Hant-HK"] .ya-q-full-text, html[lang="zh-Hant-HK"] .ya-q-text html[lang="zh-Hant-TW"] #ya-question-detail h1, html[lang="zh-Hant-HK"] #ya-question-detail h1 /* Trending Now */ /* Center Rail */ #ya-center-rail .profile-banner-default .ya-ba-title #Stencil . Bgc-lgr .tupwrap .comment-text /* Right Rail */ #Stencil . Fw-300 .qstn-title #ya-trending-questions-show-more, #ya-related-questions-show-more #ya-trending-questions-more, #ya-related-questions-more /* DMROS */ .
Beta-blocking drugs, primarily propranolol, have proved to be safe and. only assuage the straightforward, physical symptoms of stage fright;. Inderal received an overall rating of 7 out of 10 stars from 189 reviews. I have been plagued by paralyzing stage fright over public speaking for the last few.