stool softeners stool softeners stool softeners stool softeners a601113 stool softeners nlm.nih.gov Surfak (Stool softeners) stool softener Colace (Stool Softener) www.nlm.nih.gov "Stool Softeners" "Stool Softeners" Peri-colace (Stool Softener) "Stool Softeners" a601113 a601113 stool softeners stool softener Stool softeners