Exhibit 31.2(a)
CERTIFICATION
I, Brian Zietsman, certify that:
| | 1. | I have reviewed this Annual Report on Form 10-K/A Amendment No. 1 of Unigene Laboratories, Inc.; and |
| | 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. |
Date: April 30, 2013
| /s/ Brian Zietsman | |
| Brian Zietsman, Chief Financial Officer | |
| (Principal Financial Officer) | |
