“…Analgesics account for less than 4 per cent. of reactions in surveys of adverse drug effects in general hospital medical wards (Ogilvie and Ruedy 1968), where digitalis preparations, diuretics, insulin, bronchodilators, antibiotics, tranquillizers, and antidepressants are most often implicated (MacDonald and MacKay, 1964;Ogilvie and Ruedy, 1968;Borda and others, 1968;Hurwitz, 1969;Hurwitz and Wade, 1969;Smidt and McQueen 1972). The limitations of this study must, however, be clearly stated.…”