(a) No prescription shall be filled under this article except upon the day upon which it is issued or the following day.
(b) No more than one-half pint of alcohol shall be sold and delivered on any one prescription.
(c) When any such prescription is filled, it shall not be refilled but shall be delivered to the druggist filling the same and, at the end of the month in which the same is filled, it shall be filed by such druggist with the Alcoholic Beverage Control Board.
(d) In towns having a population of 2,000 or more, no physician's prescription shall be filled at any drugstore of which he is the proprietor or in which said physician has a financial interest, either as partner, stockholder or otherwise.