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Exhibit 10.2 March 4, 2005 Andrew A. Stevens Dear Andy: This will confirm that beginning on this date, the following terms will apply to your
employment with Zila, Inc. and/or whichever one of Zila, Inc.s subsidiary or affiliated companies
employs you (the company that employs you shall be termed the Company)(this Agreement): 1. Current award of stock options.As set forth in more detail in the Zila, Inc. Stock Option
Award Agreement dated September 30, 2004, Zila, Inc. has granted you 50,000 options to purchase
Zila, Inc. common stock under the Zila, Inc. 1997 Stock Option Award Plan, as amended and restated
December 5, 2002 (the Stock Option Plan). The options granted under the September 30, 2004
agreement are (i) governed in all respects by the Stock Option Plan, which is hereby incorporated
by reference as if fully set forth herein, and (ii) granted in lieu of and in addition to any award
you would have received under the Zila, Inc. Incentive Bonus Award and Option Award Plan (the
Incentive Bonus and Option Plan) and/or the Stock Option Plan for Zila, Inc.s fiscal year 2004. 2. Eligibility for future awards of stock options.Beginning with Zila, Inc.s fiscal year
2005, you will be eligible under the Incentive Bonus and Option Plan, or such amended or restated
incentive bonus and option award plan as may then be in effect, for an annual award of options to
purchase Zila, Inc. common stock that is greater than the award eligibility specified in the
Incentive Bonus and Option Plan for an employee at your level. In all other respects, your
eligibility shall be governed by the Incentive Bonus and Option Plan or such amended or restated
incentive bonus and option award plan as may then be in effect (the plan then in effect is hereby
incorporated by reference as if fully set forth herein). The grant and/or exercise of any such
options shall be governed in all respects by the Stock Option Plan or such amended or restated
stock option plan as may then be in effect (the plan then in effect is hereby incorporated by
reference as if fully set forth herein). 3. Severance pay.If your employment with the Company terminates, you shall be eligible to
receive severance pay in accordance with the following: 3.1 Change in control.If your employment is terminated because of a change in control of
Zila, Inc. and you provide Zila, Inc. and the Company with a written release, in a form acceptable
to Zila, Inc. and the Company, from all legal liability arising out of any events that occurred
prior to execution of such release, you shall receive




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severance pay equivalent to twelve (12) months of your then-current base salary. For purposes of
this Agreement, change in control shall be defined and governed by the definition of change in
control contained in the Stock Option Plan or such amended or restated stock option plan as may
then be in effect. 3.2 Other termination.If your employment is terminated for any reason that is unrelated to
(i) your conduct or job performance and (ii) your inability to perform your job (e.g., due to
incapacity or death), and you provide Zila, Inc. and the Company with a written release, in a form
acceptable to Zila, Inc. and the Company, from all legal liability arising out of any events that
occurred prior to execution of such release, you shall receive severance pay equivalent to six (6)
months of your then-current base salary. 3.3 No other rights to severance pay.You shall not be entitled to receive severance pay if
you voluntarily resign from your employment or your employment terminates for a reason related to
your conduct or job performance or your employment terminates for any other reason not specifically
recited above as qualifying you for severance benefits. 3.4 Timing of severance pay.Any severance pay due you under this Agreement shall be made
over the applicable time period (e.g., six months of pay over six months) in accordance with the
Companys regular payroll dates during that time period. 3.5 Cessation of severance payments.Your right to receive severance pay shall immediately
terminate if (i) you accept employment with or become engaged by or otherwise affiliated with any
enterprise that competes in any way with Zila, Inc., the Company, or any of Zila, Inc.s affiliated
companies, (ii) you solicit employees of Zila, Inc., the Company, or any of Zila, Inc.s affiliated
companies to leave and join any other enterprise, or (iii) you breach any contractual obligation
you owe Zila, Inc. or the Company or violate any other promise or commitment you have made to Zila,
Inc. or the Company or duty you owe Zila, Inc. or the Company. 3.6 Determinations regarding qualification.Determinations regarding whether you qualify for
severance benefits under this Agreement including, without limitation, determinations regarding
whether you have been terminated for reasons related to your conduct or job performance, will be
made by Zila, Inc. and/or the Company in its and/or their reasonable discretion. 4. Cooperation in Dispute Resolution.During your employment and thereafter (including
following termination of your employment for any reason), you will make yourself reasonably
available to consult with Zila, Inc., the Company or any of Zila, Inc.s affiliated companies with
regard to any potential or actual dispute Zila, Inc., the Company or any of Zila, Inc.s affiliated
companies may have with any third party, and to testify about any such matter should such testimony
be required, so long as doing so does not materially interfere with your then-current professional
activities.




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5. Applicable Law.The undersigned hereby consents that Arizona law will apply to this
Agreement without regard to choice-of-law or conflict-of-law rules. However, Arizona Revised
Statute § 23-355 (which provides for the possibility of treble damages for unpaid wages following
termination of employment) shall not apply to this Agreement. 6. At-will employment.Nothing in this Agreement shall alter the at-will nature of your
employment. Your employment remains at will, meaning that it lawfully can be terminated at any
time by either party, with or without cause or notice. 7. Severability.In the event that any provision or portion of this Agreement shall be
determined to be invalid or unenforceable for any reason, in whole or in part, the remaining
provisions of this Agreement shall remain in full force and effect to the fullest extent permitted
by law. 8. No Effect on other Agreements, Commitments or Duties.The terms of this letter shall have
no effect on any other agreement you have entered into with Zila, Inc. or the Company dealing with
other subject matters, any commitments you have made to Zila, Inc. or the Company, or any duties
you owe to Zila, Inc. or the Company. If you understand and agree with the terms of this letter, please sign where indicated below.
Thank you very much for your ongoing efforts on behalf of Zila, Inc. and the Company. Sincerely,/s/ Douglas D. BurkettDouglas D. Burkett, Ph.D.Chief Executive Officer
 Statement of Understanding and Agreement: I have read the foregoing Agreement. I understand and agree that the terms stated in this
Agreement shall apply to my employment from this date forward. Dated:
    

March 7, 2005
    
    /s/ Andrew A. StevensAndrew A. Stevens