“…Even if this were to occur the effect upon long-term prognosis Would not be clearly proved until a large series had been followed up, although the probability of such effect would be strong enough to justify the optimistic use of the treatment. Craig, Clark, and Chalmers (1949) reported their experience in the use of mepyramine maleate (" anthisan ") in the treatment of a series of cases. The average duration of the disease in their treated series was two to three weeks, and in the series of untreated cases, with which it was compared, about four months.…”