- New Zealand Pharmaceuticals Limited (NZP) is a GMP certified manufacturer of natural biochemicals extracted from a range of plant and animal raw materials. NZP's products have pharmaceutical, dietary supplement, cosmetic, biotechnology/diagnostic and aquaculture uses. Products include; the plant extracts D-pinitol, Echinacea extracts and ProenOthera , the bile derivatives cholic, deoxycholic ...nzp.co.nz