Sabril is a brand name; the name of medicine is vigabatrin. It can be used in infants.
Even though there are alternative medications available for controlling seizures such as clobazam (Frisium), lamotrigine (Lametec) etc., they are not recommended for use in children below 3 years (clobazam) and 2 years (lamotrigine) because safety and efficacy has not been established in those age groups.