Over The Counter Meds For Roundworms In Cats. Sure enough she started acting strange and then it happened, the scooting(yuck). In fact, negative side effects are minimal.
However i did buy the sergeants dewormer and give her the 2 pills (shes 81 lbs). Pyranel pamoate only kills actual worms in the cat's intestines, not worm larvae. The best over the counter cat dewormers in 2020: