Fastrac Pellets (Bromethalin) 121 X 0.53 Oz (15 G) Place Pacs Fastrac Pellets are some of the fastest acting rodent baits (Bromethalin). Fastrac comes in blox form and pellets form. Fastrac is a non-anticoagulant and highly effective on rodents Fastrac has no bait shyness or resistance and has a very quick kill, killing rats and mice in one or two days. The pellets hold up in moist conditions.