1. A method comprising: identifying, on a processor, a medication prescribed to a member of a pharmaceutical benefit plan for possible substitution, the pharmaceutical benefit plan being administered by a benefit manager; determining, on the processor, a substitute medication for the identified medication based on the pharmaceutical benefits plan of the member; receiving member authorization to substitute the substitute medication for the identified medication; receiving an additional member authorization associated with a different member, the additional member authorization for medication substitution on behalf of the additional member; grouping, on the processor, the member authorization and the additional member authorization for a prescriber; providing, on the processor, a prescriber authorization request for medication substitution on behalf of the member and the additional member, the prescriber authorization request being based on grouping of the member authorization and the additional member authorization; receiving, on the processor, a prescriber authorization response to the prescriber authorization request; and respectively notifying the member and additional member regarding medication substitution based on the prescriber authorization response.