Saizen HGH is manufactured by Merck. Saizen hgh is a prescription medication for patients who meet certain medical criteria.

Norditropin FlexPro Nordiflex Pens 10mg (30IU) & 15mg (45IU) Pens

Humatrope pen cartridges come in 6mg (18IU), 12mg (36IU) and 24mg (72IU) dosage strengths.

Genotropin GoQuick Pens. This is the newest presentation of Pfizer’s Genotropin GoQuick HGH injection pens offered in 12mg 36 IU & 5.3mg 16 IU Pens.