Some practitioners feel the label information is incomplete.
Other reports convey both potential and actual errors with the product. In one report, a 20-mg dose was ordered but two ampuls were administered, leading to an overdose. This happened because the reporter mistook 10 mg as the total contents of one vial. USP PRN reports and other similar reports received by Hoechst Marion Roussel have prompted the company to return to the old-style labeling that includes the product's total volume data. According to the firm, this change will be implemented as quickly as possible.