Introduction Low dosage insulin regimens for diabetic "comas" have recently attracted considerable attention (Alberti, Hockaday and Turner, 1973; Page et al, 1974; Kidson et al, 1974; Semple, White and Manderson, 1974). These regimans have all originated from established diabetic centres, however the simplicity of these regimens, especially the intra muscular regimen (Alberti et al, 1973), woul...