Polymorphic Serum

Those unfamiliar with polymorphic serum often believe the churning, neon-green liquid to be toxic or radioactive at first glance. When created, each polymorphic serum is assigned a specific polymorphed form, as described by a polymorph spell of the serum’s level (Alien Archive 2 145). All decisions regarding this polymorph form, such as whether it is a generic or a specific form, are determined when the serum is created. Any creature imbibing a polymorphic serum changes into the serum’s associated form for 2 hours × the serum’s mark (2 hours for mk 1, 4 hours for mk 2, and so on).

If you are unwillingly subjected to a polymorphic serum (such as through a weapon with the injection special property), you can attempt a Fortitude save to negate this effect (DC = 10 + 1-1/2 × the item’s level). If you fail, you can still dismiss the effect as normal for the polymorph spell.