Red about said it all. If you have cramping during that 30 minutes just squeeze and bear it and it will subside and you can sleep all night.
I am using the generic version now 10 days. Please let us know how it works for you. I am not doing well - symptoms got worse so I stopped one night and now two in a row - still have problems - continuing unless it gets worse in a couple days again.
ElaineNY (fellow NYer but central NY here)
68 yr. old granny
New diagnosed with proctosigmoiditis - 6/2008
Colonoscopy 10/28 showed only 2 cm. left to heal in rectum - going to try Proctofoam first.
Probiotic Align, Prilosec for GERD
Inderol for hypertension,Xanax,Lipitor, multivitamin, calcium w/D, Tylenol
January 9 - doctor changed me from Protofoam to hydrocortisone enemas for two weeks - wish me luck.