Maryland Health - General Section 21-226
§ 21-226.
  (a)   The manufacturer, packer, or distributor of any prescription drug that is sold or distributed in this State shall:
    (1)   Keep correct copies of any printed matter that is:
      (i)   Required to be included in any package in which the drug is sold or distributed; or
      (ii)   Approved under the federal act; and
    (2)   Send copies of the printed matter to any health practitioner who is authorized to administer the drug and who makes a written request for information about the drug.
  (b)   This section does not exempt any person from any labeling requirement imposed under any other provision of this subtitle.