Summary
Co-trimoxazole, a mixture of one part trimethoprim (TMP) and five parts of sulphamethoxazole (SMX) in fixed ratio was given to 48 children aged between one and 48 months twice daily for up to seven days. Twenty were relatively healthy and 28 were very ill. Dosage was based on age. Plasma concentrations of both drugs were measured just before a dose was due and some three hours later. They were in the effective but not toxic range and serve to justify the simple regimen which generated them.
Similar content being viewed by others
References
Bratton, A.C., Marshall, E.K.: A new coupling component for sulfanilamide determination. J. biol. Chem.128 537–550 (1939)
Busby, S.R.M.: Combined antibacterial action in vitro of trimethoprim and sulphonamides. The in vitro nature of synergy. Postgrad. med. J. Suppl.45 10–18 (1969)
Bushby, S.R.M., Hitchings, G.H.: Trimethoprim, a sulfonamide potentiator. Brit. J. Pharmacol.33 72–90 (1968)
Bye, A., Fox, A.J.F.: Modification of an automatic method specifically for the assay of sulphamethoxazole in biological fluids. Clin. Chem.20 288–293 (1974)
Catzel, P.: Paediatric prescriber. 3rd edition. Oxford: Blackwell Scientific Publications 1966
Fowle, A.S.E.: The dosage of Septrin. Med. J. Aust. Special Suppl.1 26–29 (1973)
Krauer, B., Spring, P., Dettli, L.: Zur Pharmakokinetik der Sulfonamide im ersten Lebensjahr. Pharmacol. Clin.1 47 (1968)
Lewin, E.B., Klein, J.O., Finland, M.: Trimethoprim- sulfamethoxazole: absorption, excretion, and toxicity in six children. J.infect.Dis.3 (Suppl.), 618–621 (1973)
Marks, M.I., Kazemi, M., Hales, B. and Neims, A.H.: Pharmacokinetic studies of trimethoprim-sulfamethoxazole in children with gastro-enteritis. J. infect. Dis.,3 (Suppl), 622–625
Nolte, H., Büttner, H.: Pharmacokinetics of trimethoprim and its combinations with sulphamethoxazole in man after single and chronic oral administration. Chemotherapy (Basel)18 274–284
Reber, H., Wild, F., Paris, J.: Experimentelle Daten über das neue Sulfonamid 5-Methyl-3-sulfanilamido-isoxazol (Ro4-2130) beim Erwachsenen. Chemotherapia (Basel)6 273–283 (1963)
Rentsch, M.: Experimentelle und klinische Untersuchungen des neuen Sulfonamids Ro4-2130 beim Kind. Dtsch. med. Wschr.87 491–498 (1962)
Schwartz, D.E., Koechlin, N.A., Weinfeld, R.E.: Spectrofluorimetric method for the determination of trimethoprim in body fluids. Chemotherapy (Basel) Suppl. Vol.14 22–29 (1969)
Tanner, J.M.: Fallacy of per weight and per surface area standards, and their relation to spurious correlation. J. appl. Physiol.2 1–15 (1949)
Wilfert, C.M.: Trimethoprim-sulfamethoxazole in children: pharmacokinetics and clinical studies. J.infect.Dis.,3 (Suppl.), 613–617 (1973)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Fowle, A.S.E., Bye, A., Hariri, F. et al. The dosage of Co-trimoxazole in childhood. Eur J Clin Pharmacol 8, 217–222 (1975). https://doi.org/10.1007/BF00567118
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00567118