EACH DOSE (2ML) CONTAINS:;INACTIVATED MYCOPLASMA HYOPNEUMONIAE ANTIGEN,AT LEAST..3.0 ELISA U;AL+++(AS HYDROXIDE), AT MOST.......4.2MG;THIOMERSAL, AT MOST......0.2MG;BUFFERED PHYSIOLOGICAL SALINE, Q.S.....2ML;*ELISA U: UNIT OF PR(RELATIVE POTENCY )COMPARED TO REFERENCE VACCI;NE