THE USUAL DOSE :- 0.5 - 5 MG 2-3 TIMES DAILY WHERE NECESSARY HIGHER DOSES UPTO 100 MG/DAY HAS BEEN GIVEN THROUGH SIDE EFFECTS ARE HIGH AT SUCH DOSES. AFTER THE INITIAL DOSE . DOSE ADJUSTMENT SHOULD BE DONE RAPIDLY TO MAINTENENCE LEVELS AND LOWEST EFFECTIVE DOSE SHOULD BE GIVEN. IN CHILDREN AND ELDERLY PATIENS . LOW DOSES SHOULD BE GIVEN TO START WITH.
CHILDREN - IN PSYCHOTIC AND NON-PSYCHOTIC BEHAVIORAL PROBLEMS 25-50 MCG (.025-.05 MG) /KG/DAY IN TWO DEVIDED DOSES AND DOSE INCREASED GRADUALLY TO 150 MCG/KG IN HYPERACTIVE CHILDREN DOSES MORE THAN 6 MG/DAY HAVE NOT SHOWN BETTER RESULTS. PARENTRAL THERAPY - 2-5 MG REPEATED EVERY 4-8 HOURS. UP TO 30MG MAY BE NEEDED IN SEVERLY DISTURBED PATIENTS.
BY DEEP INTRAMUSCULAR INJECTION INTO THE GLUTEAL MUSCLE, INITIALLY 50 MG EVERY 4 WEEKS, IF NECESSARY INCREASING BY 50-MG INCREMENTS TO 300 MG EVERY 4 WEEKS; HIGHER DOSES MAY BE NEEDED IN SOME PATIENTS; ELDERLY, INITIALLY 12.5 - 25 MG EVERY 4 WEEKS; CHILD NOT RECOMMENDED
NOTE IF 2-WEEKLY ADMINISTRATION PREFERRED, DOSES SHOULD BE HALVED