EXHIBIT 32.1
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                              UNITED-GUARDIAN, INC.
                    CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER
                       PURSUANT TO 18 U.S.C. SECTION 1350,
                    AS ADOPTED PURSUANT TO SECTION 906 OF THE
                           SARBANES-OXLEY ACT OF 2002



     I, Kenneth H. Globus,  President of United-Guardian,  Inc., hereby certify,
pursuant to 18 U.S.C.  Section 1350,  as adopted  pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, that the Quarterly Report of  United-Guardian,  Inc.
on Form 10-QSB for the fiscal  quarter ended March 31, 2007 fully  complies with
the  requirements  of Section 13(a) or 15(d) of the  Securities  Exchange Act of
1934, and that information  contained in this Form 10-QSB fairly presents in all
material  respects  the  financial   condition  and  results  of  operations  of
United-Guardian, Inc.


Date:  May 8, 2007                       By: /s/ Kenneth H. Globus
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                                             Kenneth H. Globus