By the way, doctor. "I've heard that over-the-counter laxatives cause cancer. Is this true"?
D002400:Cathartics / Q000009:adverse effects*; D004366:Nonprescription Drugs / Q000009:adverse effects*; D020113:Phenolphthalein / Q000009:adverse effects*
D002400:Cathartics; D004366:Nonprescription Drugs; D020113:Phenolphthalein