 - The effects of the Colon KCC Heptapeptide labeled with 5-FITC on the developing human fetus are unknown. For this reason, women of child-bearing potential must have a negative pregnancy test on the day of the procedure to receiving the Colon KCC Heptapeptide 5-FITC-labeled peptide agent or be post-menopausal. Post-menopausal women are defined as post-hysterectomy, or over 40 and at least 18 months without menses and not on birth-control. 