Md. Code, Health - General § 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.