Exhibit 10.19 ALLONGE THIS ALLONGE to the Promissory Note (the "Note") in the original principal sum of $__________, dated ______________, 200__, made by Marc Pharmaceuticals, Inc., payable to __________________hereby amends the Note to provide that...

                                  Exhibit 10.19
                                     ALLONGE


THIS ALLONGE to the Promissory Note (the "Note") in the original principal sum
of $__________, dated ______________, 200__, made by Xxxx Xxxxxxxxxxxxxxx, Inc.,
payable to __________________hereby amends the Note to provide that its maturity
date shall be extended from ________________, 200_ to _____________, 200_.

All other terms of the Note shall remain in full force and effect.

This Allonge shall be attached to the Note and is hereby made a part thereof.

This Allonge may be signed in counterparts, both of which taken together shall
constitute one and the same instrument.



Dated: ____________________________



                                                     ---------------------------



Acknowledged and agreed:

MARC PHARMACEUTICALS, INC.

By:____________________________
Name: Xxxxxx X. Xxxxx
Title:   President

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