KETOTIFEN FUMARATE IS TAKEN BY MOUTH IN DOSES EQUIVALENT TO 1 MG OF KETOTIFEN TWICE DAILY WITH FOOD, INCREASED IF NECESSARY TO 2 MG TWICE DAILY; 0.5 TO 1 MG AT NIGHT MAY BE PREFERABLE FOR THE FIRST FEW DAYS OF TREATMENT IF DROWSINESS IS LIKELY TO BE A PROBLEM. CHILDREN OVER 3 YEARS MAY BE GIVEN THE EQUIVALENT OF 1 MG OF KETOTIFEN TWICE DAILY. A DOSE EQUIVALENT TO 500 MICROGRAMS TWICE DAILY HAS BEEN SUGGESTED FOR CHILDREN BETWEEN 6 MONTHS AND 3 YEARS OF AGE.
KETOTIFEN FUMARATE HAS ALSO BEEN APPLIED TOPICALLY, AS EYE DROPS EQUIVALENT TO 0.025% KETOTIFEN; IT HAS BEEN USED TWICE DAILY IN ADULTS, AND IN CHILDREN AGED 3 YEARS AND OLDER.