Genotropin GoQuick Pen 12MG is a recombinant human growth hormone used to treat growth hormone deficiency in both children and adults. It is produced by Pfizer and administered via a prefilled pen injector. The medication contains 12mg of somatropin and acts on the liver to stimulate the production of insulin-like growth factor. It is injected subcutaneously and the dosage is dependent on age, weight, and medical condition.