Prescription costs $500 for a month’s supply

DEAR DR. ROACH: What can you tell me about a prescription of 145 mcg of Linzess, and why a doctor would prescribe a pill over $500? What are the advantages to taking this? Surely, there must be something less expensive that will provide the same results. -- J.P. ANSWER: Linaclotide (Linzess or Constella) is a medicine used for constipation, either in people with irritabl...