Anti-inflammatory activity of ointments of indomethacin and its calcium salt applied to abdominal skin of rat.

    January 1988 in “ Chemical and Pharmaceutical Bulletin ”
    Taro Ogiso, Yoshimasa Ito, Masahiro Iwaki, HIDEHIKO ATAGO
    TLDR IND-Ca ointment effectively reduces inflammation with minimal skin irritation.
    The study investigated the anti-inflammatory effects of indomethacin (IND) and its calcium salt (IND-Ca) ointments on rats with carrageenin-induced paw edema and adjuvant arthritis. Both 1% and 0.5% IND and IND-Ca ointments applied to the skin showed potent inhibitory effects on inflammation, comparable to oral doses of IND. The ointments caused only slight irritation on rabbit skin, with IND-Ca showing negligible irritancy. However, IND solution prevented hair growth at application sites temporarily. The findings suggested that IND-Ca ointment was suitable for clinical use due to its effective anti-inflammatory properties and minimal skin irritation.
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