Exhibit 31.2

CERTIFICATION

I, Barbara G. Duncan, Chief Financial
Officer of DOV Pharmaceutical, Inc. certify that:

| | 1. |  | I
have reviewed this quarterly report on Form 10-Q of DOV Pharmaceutical, Inc.;
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| | 2. |  | Based
on my knowledge, this report does not contain any untrue statement of a material fact
                  or omit to state a material fact necessary to make the statements made,
in light of the circumstances                   under which such statements were made,
not misleading with respect to the period covered by this                   report;
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| | 3. |  | Based
on my knowledge, the financial statements, and other financial information included in
                  this report, fairly present in all material respects the financial
condition, results of operations                   and cash flows of registrant as of,
and for, the periods presented in this report;
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| | 4. |  | Registrants
other certifying officer and I are responsible for establishing and maintaining
                  disclosure controls and procedures (as defined in Exchange Act Rules
13a-15(e) and 15d-15(e)) for                   registrant and have:
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| |  | (a) |  | Designed
such disclosure controls and procedures, or caused such disclosure
                           controls and procedures to be designed under our supervision,
to ensure that material                            information relating to registrant,
including its consolidated subsidiaries, is made known to                            us
by others within those entities, particularly during the period in which this report is
                           being prepared;
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| |  | (b) |  | Omitted
| |  | --- |  | -------

| |  | (c) |  | Evaluated
the effectiveness of registrants disclosure controls and
                           procedures and presented in this report our conclusions about
the effectiveness of the                            disclosure controls and procedures,
as of the end of the period covered by this report based                            on
such evaluation; and
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| |  | (d) |  | Disclosed
in this report any change in registrants internal control over financial reporting
                           that occurred during registrants most recent fiscal quarter
that has materially affected, or                            is reasonably likely to
materially affect, registrants internal control over financial
                           reporting.
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| | 5. |  | Registrants
other certifying officer and I have disclosed, based on our most recent
                  evaluation of internal control over financial reporting, to registrants
auditors and the audit                   committee of registrants board of directors:
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| |  | (a) |  | All
significant deficiencies and material weaknesses in the design or operation of internal
                           control over financial reporting that are reasonably likely to
adversely affect registrants                            ability to record, process,
summarize and report financial information; and
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| |  | (b) |  | Any
fraud, whether or not material, that involves management or other employees who have a
                           significant role in registrants internal control over
financial reporting.
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|Date: November 14, 2003 |  | By: | /s/  BARBARA G. DUNCAN Barbara G. Duncan
    Vice President of Finance and Chief Financial Officer
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