DEA reverses revocation of pharmacy controlled substance registration after Nicholson & Eastin, LLP argues that the revocation was done without authority.  The attorneys at Nicholson & Eastin, in a demand letter for rescission of the revocation, pointed out that the regulation DEA relied upon in imposing the revocation did not authorize the action under the facts of the particular case.  After reviewing the Firm’s submission, DEA rescinded the revocation.