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<div class="pronounce-title"><h1>Acetylcysteine</h1><audio id="pronounce-audio" preload="none">

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<a id="pronunciation" class="pronounce-icon" href="#pronunciation" title="Listen to audio pronunciation" onclick="document.getElementById('pronounce-audio').play();return false;"><svg class="ddc-icon ddc-icon-pronunciation" width="16" height="16" viewBox="0 0 24 24" aria-hidden="true" focusable="false" xmlns="http://www.w3.org/2000/svg"><path d="M10.73 3.81a1.75 1.75 0 013.02 1.2v13.97a1.75 1.75 0 01-3.02 1.2l-4.2-4.43H3.24v-7.5h3.27zm1.39.99a.25.25 0 00-.3.04l-4.07 4.3v5.72l4.07 4.3c.03.03.07.05.11.06l.07.01c.14 0 .25-.1.25-.25V5.02a.25.25 0 00-.08-.18zm5.7 1.52A6.24 6.24 0 0121.25 12a6.24 6.24 0 01-3.43 5.68.75.75 0 11-.64-1.36A4.74 4.74 0 0019.75 12c0-1.9-1.03-3.59-2.57-4.32a.75.75 0 11.64-1.36zm-1.48 3c.87.45 1.41 1.51 1.41 2.68 0 1.17-.54 2.23-1.41 2.67a.75.75 0 01-.76-1.29l.08-.05c.32-.16.59-.69.59-1.33 0-.59-.23-1.08-.5-1.28l-.09-.05a.75.75 0 11.68-1.34zm-10.09.43h-1.5v4.5h1.5v-4.5z"></path></svg></a></div>

<p class="drug-subtitle"><b>Generic name:</b> acetylcysteine (oral) (a SEET il SIS teen)<br><b>Brand name:</b> <i>NAC, N-A-C Sustain</i><br><b>Dosage forms:</b> oral capsule (500 mg; 600 mg); oral tablet (600 mg)<br><b>Drug class:</b> <a href="/drug-class/antidotes.html">Antidotes</a>, <a href="/drug-class/mucolytics.html">Mucolytics</a></p>

<p class="ddc-reviewed-by ddc-author-image-cerner" style="background-image: url(/img/logo/vendor/cerner-logomark.png);"><span><a href="/support/editorial_policy.html#editorial-staff">Medically reviewed</a> by Drugs.com on Dec 24, 2021. Written by <a href="/support/editorial_policy.html#cerner">Cerner Multum</a>.</span></p>

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<li><a href="#uses">Uses</a></li>

<li><a href="#warnings">Warnings</a></li>

<li><a href="#dosage">Dosage</a></li>

<li><a href="#what-to-avoid">What to avoid</a></li>

<li><a href="#side-effects">Side effects</a></li>

<li><a href="#interactions">Interactions</a></li>

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<div id="WhatIs"></div>

<h2 id="uses" class="ddc-anchor-offset">What is acetylcysteine?</h2>

<p>Acetylcysteine is used to help prevent or lessen liver damage caused by taking large quantities of <a href="/acetaminophen.html" data-type="auto">acetaminophen</a> (<a href="/tylenol.html" data-type="auto">Tylenol</a>).</p>

<p>There are other brands and forms of acetylcysteine available, and some can be purchased over the counter. Not all forms of  acetylcysteine are effective as an acetaminophen antidote. Do not attempt to treat an <a href="/cg/acetaminophen-overdose.html" data-type="auto">acetaminophen overdose</a> without medical advice.</p>

<p>Acetylcysteine may also be used for purposes not listed in this medication guide.</p>

<div id="Important"></div>

<h2 id="warnings" class="ddc-anchor-offset">Warnings</h2>

<p>In an emergency, you may not be able to tell caregivers about your health conditions. Make sure any doctor caring for you afterward knows you received this medicine.</p>

<div id="NotTake"></div>

<h2>Before taking this medicine</h2>

Dim XMLPage As New MSXML2.XMLHTTP60

    Dim htmldoc As New MSHTML.HTMLDocument

    Dim htmlims As MSHTML.IHTMLElementCollection

   categoria = "/mtm/Acetylcysteine.html"

    URL = "https://www.drugs.com" & categoria

    XMLPage.Open "Get", URL, False

    XMLPage.setRequestHeader "Content-Type", "text/xml"

    XMLPage.send

    On Error Resume Next

    htmldoc.body.innerHTML = XMLPage.responseText

   Set htmlims = htmldoc.getElementsByClassName("contentBox")

h2_tag_index = htmlims(0).all.Item(content_index).localName