Exhibit 3(o) AMENDMENT TO BYLAWS OF K-V PHARMACEUTICAL COMPANY As directed by the unanimously adopted resolution of the Board of Directors of K-V Pharmaceutical Company duly adopted on June 28, 2004, the Bylaws of the Company were amended, effective June 28, 2004, by amending the first sentence of Article III, Section 1 thereof to read as follows in its entirety: "The number of directors which shall constitute the whole board shall be ten."