Genotropin® (Somatropin) — Recombinant Human Growth Hormone for Growth and Metabolic Disorders

The Most Widely Used Recombinant Human Growth Hormone Worldwide

Genotropin® (Somatropin) is a recombinant human growth hormone (rhGH) used to treat growth hormone deficiency (GHD) in children and adults, Turner syndrome, Prader-Willi syndrome, short stature associated with chronic kidney disease, small for gestational age (SGA), and other growth-related conditions. Genotropin is identical in amino acid sequence to naturally occurring human growth hormone — produced using recombinant DNA technology.

A.K. Pharma is a trusted medicine distributor in Delhi supplying genuine Genotropin (Somatropin) to hospitals, paediatric endocrinology centres, endocrinology clinics, and pharmacies across India. Manufactured by Pfizer, one of the world’s leading pharmaceutical companies, Genotropin is one of the most extensively studied and widely used growth hormone preparations globally.

What is Genotropin (Somatropin)?

Genotropin contains Somatropin — a 191 amino acid recombinant human growth hormone produced in E. coli using recombinant DNA technology. The amino acid sequence of Somatropin is identical to pituitary-derived human growth hormone, providing physiologically equivalent activity.

Growth hormone (GH) is produced by the anterior pituitary gland and plays a critical role throughout life — not just in childhood growth. GH acts directly on tissues and indirectly through insulin-like growth factor-1 (IGF-1) — primarily produced in the liver in response to GH stimulation. Together GH and IGF-1 regulate:

• Linear growth in children
• Body composition (muscle mass, fat distribution)
• Bone mineral density
• Lipid and carbohydrate metabolism
• Cardiovascular function
• Quality of life and wellbeing

In GHD these physiological processes are impaired — leading to short stature in children and metabolic dysfunction in adults.

Full prescribing information is available at the FDA label for Genotropin.

Clinical Studies and Evidence

Paediatric GHD Studies Multiple large clinical trials and decades of post-marketing experience demonstrate that Genotropin (Somatropin) significantly improves height velocity and final adult height in children with growth hormone deficiency. The KIGS (Kabi International Growth Study) — one of the largest growth hormone databases in the world with data from over 83,000 patients — provides comprehensive real-world evidence of Somatropin’s long-term efficacy and safety.

Turner Syndrome Studies Published in the Journal of Clinical Endocrinology and Metabolism, multiple trials demonstrate that Genotropin significantly improves final adult height in girls with Turner syndrome — typically achieving 5-8cm greater final height compared to untreated patients.

Adult GHD Studies Multiple randomised placebo-controlled trials demonstrate that Genotropin replacement in adult GHD significantly improves body composition (reducing fat mass, increasing lean mass), bone mineral density, lipid profiles, cardiovascular risk factors, and quality of life — establishing adult GHD as a genuine metabolic condition requiring treatment.

Prader-Willi Syndrome Studies Clinical trials demonstrate significant improvements in body composition, muscle strength, physical agility, and quality of life with Genotropin in Prader-Willi syndrome patients — with benefits extending beyond linear growth.

SGA Studies Published in Hormone Research (2003), trials in children born SGA demonstrate that Genotropin treatment significantly improves height velocity and final adult height in children who fail to show catch-up growth — with a favourable safety profile.

Available Strengths

Genotropin is available in the following formulations:

Genotropin GoQuick Pen:

• 5.3mg (16 IU) — dual chamber prefilled pen
• 12mg (36 IU) — dual chamber prefilled pen

Genotropin Miniquick:

• 0.2mg, 0.4mg, 0.6mg, 0.8mg, 1.0mg, 1.2mg, 1.4mg, 1.6mg, 1.8mg, 2.0mg — single-dose disposable devices

The GoQuick pen contains powder and solvent in separate chambers — mixed automatically when the pen is prepared for injection. The Miniquick device delivers a precise single dose — useful for travelling and dose flexibility.

Indications — What Genotropin is Used For

Paediatric Indications:

• Growth hormone deficiency (GHD) in children — confirmed by growth hormone stimulation testing
• Turner syndrome — short stature in girls with chromosomal abnormality
• Prader-Willi syndrome — growth failure and body composition abnormalities
• Chronic kidney disease — short stature associated with CKD before transplantation
• Small for Gestational Age (SGA) — children born small who fail to show catch-up growth by age 4
• Short stature homeobox gene (SHOX) deficiency

Adult Indications:

• Adult growth hormone deficiency — either childhood-onset (continued from childhood treatment) or adult-onset (due to pituitary disease, surgery, or radiation)

For detailed indication information refer to MedlinePlus Somatropin.

Key Benefits of Genotropin

Proven Linear Growth in Paediatric GHD Decades of clinical trial data and real-world experience from the KIGS database demonstrate consistent, significant improvements in height velocity and final adult height in children with GHD treated with Genotropin.

Comprehensive Metabolic Benefits in Adult GHD Beyond growth, Genotropin addresses the full metabolic impact of adult GHD — improving body composition, bone density, cardiovascular risk factors, and quality of life — demonstrating that GHD is a genuine adult metabolic disorder.

Convenient Delivery Devices The GoQuick pen and Miniquick device provide convenient, accurate dosing with minimal preparation — improving patient adherence and quality of life, particularly important for children requiring daily injections.

Extensive Long-Term Safety Data The KIGS database and multiple long-term surveillance studies provide comprehensive safety data over decades of use — making Genotropin one of the most extensively studied growth hormone preparations available.

Multiple Indications Beyond GHD Genotropin’s broad approval across Turner syndrome, Prader-Willi syndrome, SGA, CKD, and SHOX deficiency makes it a versatile growth hormone preparation for paediatric endocrinologists.

Identical to Natural Growth Hormone Genotropin’s 191 amino acid sequence is identical to pituitary-derived human GH — providing physiologically equivalent activity with the same receptor binding and downstream signalling as endogenous GH.

How Genotropin Works

Growth hormone exerts its effects through two main pathways:

Direct GH Receptor Activation:

• GH binds to GH receptors on target tissues including adipocytes, hepatocytes, and muscle cells
• Activates JAK2/STAT5 signalling cascade
• Directly stimulates lipolysis in adipose tissue — reducing fat mass
• Directly stimulates protein synthesis in muscle — increasing lean mass

IGF-1 Mediated Effects:

• GH stimulates hepatic production of IGF-1 (Insulin-like Growth Factor-1)
• IGF-1 is the primary mediator of GH’s growth-promoting effects
• IGF-1 binds to IGF-1 receptors on growth plate chondrocytes — stimulating longitudinal bone growth
• IGF-1 stimulates protein synthesis, cell proliferation, and differentiation throughout the body

Effects of Genotropin:

• Stimulates skeletal growth — increases height velocity in GHD children
• Stimulates IGF-1 and IGFBP-3 production
• Reduces body fat — particularly visceral adiposity
• Increases lean body mass and muscle strength
• Improves bone mineral density
• Normalises lipid profiles — reduces LDL, increases HDL
• Improves cardiac function and cardiovascular risk factors

For a detailed mechanism overview refer to the Endocrine Society GHD Clinical Practice Guidelines.

Dosage and Administration

Paediatric GHD:

• 0.16-0.24mg/kg/week subcutaneously — divided into daily injections
• Dose adjusted based on growth response and IGF-1 levels

Turner Syndrome:

• 0.33mg/kg/week subcutaneously — divided into daily injections

Prader-Willi Syndrome:

• 0.24mg/kg/week subcutaneously — divided into daily injections

SGA:

• 0.48mg/kg/week subcutaneously — divided into daily injections

Adult GHD:

• Starting dose: 0.15-0.3mg/day subcutaneously
• Titrate based on IGF-1 levels and clinical response
• Usual maintenance: 0.15-1.0mg/day

Administration:

• Subcutaneous injection — abdomen, thigh, or upper arm
• Rotate injection sites
• Administer in the evening — physiologically aligned with nocturnal GH pulsatility
• Use GoQuick pen or Miniquick device as instructed

Full dosing guidelines available at Drugs.com Somatropin Dosage.

Monitoring During Genotropin Treatment

Regular monitoring is essential during growth hormone therapy:

• Height and weight — every 3-6 months in children
• IGF-1 levels — every 6 months — primary safety and efficacy biomarker
• Thyroid function — GH can unmask hypothyroidism — monitor annually
• Fasting glucose and HbA1c — GH has diabetogenic effects — monitor annually
• Bone age — annual X-ray of left hand and wrist in children
• Scoliosis — monitor particularly in Prader-Willi syndrome and Turner syndrome
• Fundoscopy — monitor for intracranial hypertension (rare)

Who Should Use Genotropin

Genotropin is prescribed for:

• Children with confirmed growth hormone deficiency — diagnosed by growth hormone stimulation testing
• Girls with Turner syndrome requiring growth promotion
• Children and adults with Prader-Willi syndrome
• Children with CKD-related short stature
• Children born SGA who have not shown adequate catch-up growth
• Adults with confirmed growth hormone deficiency (childhood-onset or adult-onset)

Genotropin is prescribed by paediatric endocrinologists and endocrinologists. A.K. Pharma supplies Genotropin to hospitals, paediatric endocrinology centres, and pharmacies across Delhi and India.

Possible Side Effects

Common side effects include injection site reactions, headache, peripheral oedema, arthralgia, myalgia, and paraesthesia.

In children: slipped capital femoral epiphysis, scoliosis progression, and benign intracranial hypertension (pseudotumour cerebri).

Serious side effects include:

• Intracranial hypertension — monitor for headache, visual changes, nausea
• Slipped capital femoral epiphysis — monitor for hip or knee pain in children
• Progression of pre-existing scoliosis
• New onset or worsening diabetes mellitus — GH has anti-insulin effects
• Pancreatitis — rare
• Increased risk of second neoplasm — monitor carefully in patients with history of cancer

Full side effect information available at FDA Genotropin Safety Information.

Precautions and Contraindications

Genotropin is contraindicated in:

• Active malignancy — Genotropin must not be used in patients with active cancer
• Acute critical illness (post-surgery, trauma, respiratory failure) — increased mortality risk
• Prader-Willi syndrome patients who are severely obese or have severe respiratory impairment
• Diabetic retinopathy
• Closed epiphyses — Genotropin is not indicated for growth promotion once epiphyses are fused

Additional precautions:

• Monitor for malignancy recurrence in patients with history of cancer
• Evaluate for hypothyroidism before and during treatment
• Monitor glucose metabolism
• Use with caution in patients with diabetes mellitus
• Not recommended during pregnancy

Storage and Handling

Before mixing (GoQuick pen):

• Store in refrigerator between 2°C and 8°C
• Do not freeze
• Protect from light

After mixing (GoQuick pen):

• Store in refrigerator between 2°C and 8°C
• Use within 28 days

Miniquick:

• Store at room temperature below 25°C for up to 3 months before use
• After mixing use immediately

As a responsible medicine distributor in Delhi, A.K. Pharma maintains full cold chain requirements during storage and supply of Genotropin ensuring product integrity for every unit supplied to hospitals and clinics.

Manufacturer Information

Genotropin (Somatropin) is manufactured by Pfizer Inc., one of the world’s largest pharmaceutical companies. Genotropin received FDA approval in 1995 for paediatric GHD and has subsequently been approved for multiple additional indications. A.K. Pharma supplies only genuine Genotropin sourced from authorized Pfizer distributors.

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Frequently Asked Questions

Q. What is Genotropin used for? Genotropin (Somatropin) is used to treat growth hormone deficiency in children and adults, Turner syndrome, Prader-Willi syndrome, short stature in children born small for gestational age, and chronic kidney disease-related short stature. More information available at MedlinePlus.

Q. What is the generic name of Genotropin? The generic name of Genotropin is Somatropin. It is recombinant human growth hormone — identical in amino acid sequence to naturally occurring pituitary growth hormone.

Q. How long does Genotropin treatment last in children? In children with GHD, Genotropin treatment typically continues until final adult height is achieved — usually when bone age reaches 14-15 years in girls and 16-17 years in boys or when height velocity falls below 2cm/year. Treatment duration varies depending on indication and individual response.

Q. Does Genotropin need to be continued in adults? Adults with confirmed GHD may benefit from continued Genotropin replacement — improving body composition, bone density, cardiovascular risk factors, and quality of life. The decision to continue adult GHD treatment is made based on individual assessment and confirmed biochemical GHD.

Q. Is Genotropin available in India? Genotropin can be supplied to hospitals, paediatric endocrinology centres, and pharmacies across India through licensed pharmaceutical distributors. Contact A.K. Pharma — medicine distributor in Delhi — for availability and pricing.

Q. What is the price of Genotropin in India? Genotropin price in India varies by strength and formulation. Contact A.K. Pharma at 011 4172 6999 or WhatsApp +91 9810034827 for current pricing and bulk supply rates.

Q. How to order Genotropin from A.K. Pharma? You can request a quote directly from this page, call us at 011 4172 6999, or WhatsApp us at +91 9810034827 with your requirements and we will respond promptly.

Q. Does A.K. Pharma supply Genotropin in bulk? Yes. A.K. Pharma supplies Genotropin in bulk to hospitals, paediatric endocrinology centres, and pharmacies across Delhi and India. Contact us for bulk pricing and availability.

Why Order Genotropin from A.K. Pharma?

• Licensed medicine distributor in Delhi with all required drug licenses
• 100% genuine Genotropin sourced from authorized Pfizer distributors
• Cold chain maintained throughout storage and delivery
• Bulk supply available for hospitals and clinics
• Prompt response to all quote requests
• Serving paediatric endocrinologists and endocrinologists across Delhi NCR and India

Contact A.K. Pharma for Genotropin Supply 📍 E-2/257A, 2nd Floor, Shastri Nagar, New Delhi 110052 📞 011 4172 6999 📱 WhatsApp: +91 9810034827 🌐 akpharma.in