The primary objective of this study is to compare the pharmacokinetic and pharmacodynamic effect between two preparations of somatropin (T and C) after a single administration of 5 mg in healthy subjects by altering serum somatropin pharmacokinetic parameters (AUC0-24h, AUC0-inf, Cmax, Tmax and T1 / 2) and pharmacodynamic (measurement of serum levels of IGF-1 presented by the concentration-time profile, AUC 0-24h and AUC0-inf.).

Secondly, the investigators will observe the clinical safety and tolerability after single dose administration in subjects, by comparing clinical parameters and the incidence of adverse events between groups.

Inclusion Criteria:

1. Research subjects who agree with all study procedures, sign and date, of their own free will, the IC;
2. Research subjects were male, aged between 18 and 32 years;
3. Research subjects with body mass index greater than or equal to 20 and less than or equal to 25;
4. Considered healthy subjects, both clinical and laboratory.

Exclusion Criteria:

1. Have donated or lost 450 mL or more blood in the 6 months preceding the study;
2. Having participated in any experimental study or have taken any experimental drug in the 12 months preceding the start of the study;
3. Having made use of regular medication less than two weeks to interfere with the pharmacokinetics / pharmacodynamics of the drug under study, such as glucocorticoids, anabolic steroids, androgens, estrogens and thyroid hormones;
4. Present history of alcohol abuse, drug or drugs;
5. Have a history of liver disease, renal, pulmonary, gastrointestinal, hematologic, or psychiatric;
6. Have made previous use of somatropin;
7. Make use of energy supplements and / or be frequent consumers of soy products (eg replacement of animal milk for soy milk).