Carprofen in veterinary medicine. II. Inhibitory effect on the release of PGF2 alpha in the early postpartum cow.
Carprofen, a non-steroidal anti-inflammatory drug (NSAID) known to inhibit prostaglandin synthesis, was given intravenously in five cows at a daily dose of 0.7 mg/kg for five days beginning on day 1 postpartum. Blood samples were collected at various times over a period of six days following the first injection. At this dose, carprofen reached highest plasma values of about 45 micrograms/ml after the fifth injection and was well tolerated by all the cows. During the whole experimental period, mean plasma levels of 15-keto-13, 14-dihydro-prostaglandin F2 alpha, the primary metabolite of PGF2 alpha, were significantly (p less than 0.05) lower in treated than in control animals (28-47% vs 64-101% of pretreatment concentrations). The suppressive effect of carprofen on PGF2 alpha-production occurred immediately after its application and was maximal 3-6 h post injection on the first and on the fifth experimental day (60-80% and 40-85%, respectively). We conclude from our results that carprofen in a single dose of 0.7 mg/kg b.w. effectively suppresses PGF2 alpha-release in the postpartum cow. Whether this effect is beneficial in the treatment of uterine inflammatory processes remains to be determined.[1]References
- Carprofen in veterinary medicine. II. Inhibitory effect on the release of PGF2 alpha in the early postpartum cow. Thun, R., Eggenberger, E., Zerobin, K., Rehm, W.F., Ludwig, B. Schweiz. Arch. Tierheilkd. (1989) [Pubmed]
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