Is it safe to take Chlorophyll tablets along with Phentermine (37.5mg 1-1.5 tabs daily) and Chromium Picolinate (1000mcg tabs daily)?

Combining meds. There should be no problems taking that combination. The Chlorophyll is essentially a concentrated form of green vegetables. The chromium if not needed by the body will be excreted. But no interactions between the three drugs you mention.