Ibuprofen Toxicity (LD50)

The median lethal dose (LD50) for Ibuprofen is

636 mg

per

*Value is measured via oral route in rat

Compound Information

Ibuprofen (Also known as: 2-(4-Isobutylphenyl)propanoic Acid, Motrin) is a colorless, crystalline stable solid commonly used as a nonsteroidal antiinflammatory (NSAID) drug which is available both by prescription and over-the-counter. Nonprescription ibuprofen is useful for managing minor aches and pains, reducing fever, and relieving symptoms of dysmenorrhea. Chemically, it derives from a propionic acid. It is absorbed by ingestion.

Molecular weight: 206.28Chemical formula: C₁₃H₁₈O₂

Information presented on this page is purely for research purposes only. It is NOT intended for clinical or diagnostic applications. To request additional information and datasets for Ibuprofen, please contact info@aatbio.com.

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References

This online resource may be cited as follows

MLA	"Quest Database™ Ibuprofen Toxicity (LD50)." AAT Bioquest, Inc., 8 Oct. 2025, https://www.aatbio.com/resources/toxicity-lethality-median-dose-td50-ld50/ibuprofen.
APA	AAT Bioquest, Inc. (2025, October 8). Quest Database™ Ibuprofen Toxicity (LD50). AAT Bioquest. https://www.aatbio.com/resources/toxicity-lethality-median-dose-td50-ld50/ibuprofen.
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