Drugs Act
What you need in complaint is to give a copy of prescription and copy of cash memo of the pharmacy who sold more quantity than what was prescribed.
Having said this, I feel any cartelisation by the Chemists or their associatin must be curbed by enacting/amending the law to make such practices illegal and punishable with stiff fines or even imprisonmentand de-recognition of such Associations.
It is not the actual issue of the chemists but mainly of the manufacturers through Chemists Associations for their vested interests.
(Elaboration may be submitted on request)
Having short of hands, they are very much active on the pharmacist issue.