Which pill is marked "IP 190"?
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Which pill is marked "IP 190"?


Quick Answer

The serial designation "IP 190" is stamped on 500-milligram oral tablets of naproxen. Naproxen is prescribed for humans for the treatment of chronic back pain and a number of other conditions and works by reducing inflammation.

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Full Answer

Naproxen is available in various dosage levels, but these have different stampings. IP189, for example, is stamped on the 375-milligram tablet. The drug is not classed as a controlled substance as its mechanism for action is as a nonsteroidal cyclooxygenase inhibitor, rather than as a narcotic or other drug with a high potential for abuse. Though pills can usually be identified by their stampings, any pill of unknown composition or origin should be safely disposed of rather than ingested.

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