A pharmacy and therapeutics committee shall: include clinical specialists that represent the needs of a purchaser’s beneficiaries; and include at least one practicing pharmacist and one practicing physician who are independent of any developer or manufacturer of prescription drugs. A majority of the members of a pharmacy and therapeutics committee shall be practicing physicians or practicing pharmacists. Each member of a pharmacy and therapeutics committee shall sign a conflict of interest statement updated at least annually disclosing any economic interest or relationship that could influence the pharmacy and therapeutics committee’s decisions.