Most prescribed · Pfizer
PFIZER · MANUFACTURED IN BELGIUM
Genotropin® 12 mg
Somatropin · recombinant HGH · 36 IU cartridge
12 mg (36 IU) cartridge
Pfizer's flagship HGH product — the most prescribed somatropin in the U.S. for both pediatric and adult GHD. Full manufacturer serialization and cold-chain shipping on every cartridge. Approximately 2 months of treatment at a standard adult dose.
From $500 / cartridge (6+ units)
GoodRx: $1,765
$42/mg vs. $147/mg GoodRx · 72% savings at volume
PFIZER · MANUFACTURED IN BELGIUM
Genotropin® 5.3 mg
Somatropin · recombinant HGH · 16 IU cartridge
5.3 mg (16 IU) cartridge
Same Pfizer product, smaller cartridge format. Ideal for patients on lower maintenance doses or pediatric protocols. Same manufacturer serialization and full cold-chain shipping.
From $300 / cartridge (6+ units)
GoodRx: $752
$56/mg vs. $142/mg GoodRx · 61% savings at volume
Understanding per-mg cost in HGH
HGH treatment is dosed by body weight — typically 0.2–0.4 mg per day for adults, adjusted based on IGF-1 response. A 154 lb adult at 0.2 mg/day uses approximately 72 mg per year. At GoodRx's $147/mg, that's approximately $10,584/year. At Trueloom's $42/mg (6+ units), approximately $3,024/year. The per-mg comparison reflects your actual annual cost — not the per-cartridge headline.
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