A MEDICATION KNOWN AS AROMASIN, USED TO TREAT BREAST CANCER. IT CONTAINS AN ORAL STEROIDAL AROMATASE INHIBITOR KNOWN AS EXEMESTANE. THE PRODUCT IS AN ENZYME THAT SYNTHESIZES ESTROGEN. AROMATASE INHIBITORS, A PRODUCT OF HEADING 2937, BLOCK THE SYNTHESIS OF ESTROGEN THEREBY LOWERING THE ESTROGEN LEVEL AND SLOWING THE GROWTH OF CANCER. PUT UP FOR RETAIL SALE.

CLASSIFICATION IS DETERMINED IN ACCORDANCE WITH THE FOLLOWING: GENERAL INTERPRETATIVE RULES (GIRS) GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF THE HEADING 3004 - MEDICAMENTS (EXCLUDING GOODS OF HEADING 3002, 3005 OR 3006) CONSISTING OF MIXED OR UNMIXED PRODUCTS FOR THERAPEUTIC OR PROPHYLACTIC USES, PUT UP IN MEASURED DOSES (INCLUDING THOSE IN THE FORM OF TRANSDERMAL ADMINISTRATION SYSTEMS) OR IN FORMS OR PACKINGS FOR RETAIL SALE GIR 5(B) HAS BEEN USED TO IDENTIFY THE TYPE OF PACKAGING GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 300439 - CONTAINING HORMONES OR OTHER PRODUCTS OF HEADING 2937 BUT NOT CONTAINING ANTBIOTICS; OTHER THAN ELSEWHERE SPECIFIED.