Musicmic ... and the second verse to Harrigan,

C-A-S-T-O-R-O-I-L spells Castor Oil, Castor Oil
That's the only decently kind o' medicine, medicine
Guy who made it must o' been an Edison, Edison
C-A-S-T-O-R-O-I-L you'll see
It's a lick on a spoon guaranteed to kill (cure) you soon
Castor Oil for me!

sian