Lethal Drug Abuse Prevention Act of 1998

Lethal Drug Abuse Prevention Act of 1998 - Amends the Controlled Substances Act (CSA) to require the Attorney General to determine that registration of an applicant to manufacture, distribute, conduct research with, or dispense specified controlled substances or listed chemicals is inconsistent with the public interest if: (1) during the five-year period immediately preceding submission of the application, the applicant's registration was revoked; or (2) the Attorney General determines, based on clear and convincing evidence, that the applicant is applying for the registration with the intention of using such registration to violate CSA provisions. Authorizes the Attorney General to suspend or revoke a registration upon a finding that the registrant has intentionally dispensed or distributed a controlled substance with a purpose of causing, or assisting in causing, the suicide or euthanasia of any individual. Directs the Attorney General to establish the Medical Review Board on Pain Relief, which, based on a hearing, shall make findings regarding whether a particular action at issue is an appropriate means to relieve pain that does not constitute a violation of such provision.