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Veterinary Toxicology and Pharmacology Commons™
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Full-Text Articles in Veterinary Toxicology and Pharmacology
An Overview Of The Methylxanthines And Their Regulation In The Horse, J Daniel Harkins, W. Allen Rees, G. D. Mundy, Scott D. Stanley, Thomas Tobin
An Overview Of The Methylxanthines And Their Regulation In The Horse, J Daniel Harkins, W. Allen Rees, G. D. Mundy, Scott D. Stanley, Thomas Tobin
Maxwell H. Gluck Equine Research Center Faculty Publications
Caffiene, theophylline and theobromine are naturally occurring members of the methylxanthine family;pentoxfylline, dyphylline and enprofylline are structurally related synthetic pharmaceuticals. Caffiene has predominantly central nervous system effects, theophylline, dyphylline and enprofylline have predominantly bronchodilator effects, while theobromine is associated with diuretic responses. Pentoxfylline is thought to increase red cell deformability and facillitate blood flow through capillary beds. The methylxanthines are not highly potent agents; they are typically administered in gram doses and they tend to have relatively long half-lives. They remain detectable in plasma and urine for relatively long periods. Similarly, traces of the naturally occurring members of this family …
Absence Of Detectable Pharmacological Effects After Oral Administration Of Isoxsuprine, J. Daniel Harkins, G. D. Mundy, S. Stanley, W. E. Woods, R. A. Sams, D. R. Richardson, S. C. Grambow, Thomas Tobin
Absence Of Detectable Pharmacological Effects After Oral Administration Of Isoxsuprine, J. Daniel Harkins, G. D. Mundy, S. Stanley, W. E. Woods, R. A. Sams, D. R. Richardson, S. C. Grambow, Thomas Tobin
Maxwell H. Gluck Equine Research Center Faculty Publications
Isoxsuprine is reported to be a peripheral vasodilator used in human and veterinary medicine to treat ischaemic vascular disease. In horses, it is generally administered orally to treat navicular disease and other lower limb problems. To deflne the scope and duration of its pharmacological responses after oral administration, 6 horses were dosed with isoxsuprine HCI (1.2 mg/kg bwt) q. 12 h for 8 days and then tested to assess the duration and extent of pharmacological actions. There was no significant difference between isoxsuprine and control treatment values for heart rate, spontaneous activity, sweat production, anal muscle tone, core and skin …