“…Supporting evidence for the advantages of a once-daily schedule is found in the model for patients having long-term treatment; though dosage did not correlate significantly with compliance, it none the less made a substantial contribution to the regression in a direction favouring once-daily dosages. Other work suggests that a once-daily dose schedule is adhered to more faithfully than a divided-dose schedule (Rose, 1941 ;Nugent et al, 1965;Oakley, 1967) and is more popular (Ziehm and Likos, 1966).…”