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	<title>False Positive When Taking Numerous Meds - RxChat (RSS)</title>
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	<description>I am court ordered to be in a treatment program and found out today that I had a UA come back positive for methamphetamine. I am not a user (I smoke marijuana), I am however Bipolar 1, have high blood pressure for which I take meds for, and am being treated for Parkinson's and am in the process of being treated for cancer (skin). Long story short I am a medical mess. Except for the skin cancers, I am on medications for everything, which I take as prescribed. Is it possible for the 13 different meds combine to give a false positive on a UA? I'm sure my Probation Officer is going to ask me about it and I would like to have some 'semblance of an answer for him. BTW the concentration that showed up was not high, it was just there. TYIA - Filed in Methamphetamine</description>
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	<lastBuildDate>Fri, 3 Oct 2025 06:58:18 GMT</lastBuildDate>
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		<title>False Positive When Taking Numerous Meds - RxChat</title>
		<link>https://rxchat.com/Discuss/False-positive-when-taking-numerous-meds-344180_s2.htm?utm_source=forums_posts&amp;utm_medium=RSS&amp;utm_campaign=RSS</link>
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		<title>Roy Says</title>
		<link>https://rxchat.com/Discuss/False-positive-when-taking-numerous-meds-344180_s2.htm?utm_source=forums_posts&amp;utm_medium=RSS&amp;utm_campaign=RSS#r_701401</link>
		<description>Yeah, this kind of thing can definitely happen. Drug tests (like UAs) are super sensitive, but not always super smart. They don't look for the actual drug molecule in detail - instead they look for &quot;markers&quot; or chemical shapes that are similar to meth. The problem is that some totally legal prescription meds can have parts that look close enough to fool the test. &lt;br/&gt;  &lt;br/&gt; A few examples: medicines for &lt;a href=&quot;https://rxchat.com/Categories/Parkinsons/&quot; target=&quot;_blank&quot;&gt;Parkinson's&lt;/a&gt;, &lt;a href=&quot;https://rxchat.com/Categories/Antidepressant/&quot; target=&quot;_blank&quot;&gt;depression&lt;/a&gt;, and even some cold meds (like &lt;a href=&quot;https://rxchat.com/Drugs/Pseudoephedrine/&quot; target=&quot;_blank&quot;&gt;pseudoephedrine&lt;/a&gt; or &lt;a href=&quot;https://rxchat.com/Drugs/Bupropion/&quot; target=&quot;_blank&quot;&gt;bupropion&lt;/a&gt;) have been known to cause false positives for &lt;a href=&quot;https://rxchat.com/Drugs/Amphetamine/&quot; target=&quot;_blank&quot;&gt;amphetamines&lt;/a&gt; or meth. And since you're on a bunch of meds (13 total, like you said), the chances of something tripping the test go up. It doesn't mean your meds &quot;combine&quot; into meth, it just means the test can mistake one of them for it. &lt;br/&gt;  &lt;br/&gt; Also, the fact that your test was just barely positive (&quot;not high, just there&quot;) fits with the idea of a false positive. If you were really using meth, the levels would usually be a lot higher. &lt;br/&gt;  &lt;br/&gt; What usually happens next is that if anyone questions it, they can order a follow-up test called GC/MS (gas chromatography / mass spectrometry). That one is way more exact, and it can tell the difference between your meds and actual meth. If you get that done, it should clear things up. &lt;br/&gt;  &lt;br/&gt; So if your probation officer asks, you can honestly say: &quot;I don't use meth. Some of my prescriptions can cause false positives, and the level was really low. A confirmation test would show the real answer.&quot;</description>
		<pubDate>Fri, 3 Oct 2025 06:58:18 GMT</pubDate>
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