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GHR-2 (GHRP-2) dosage

Compare GHRP-2 injection and nasal schedules with the separate weight-based oral preparation, including frequency and course length. Calculate volume and syringe units using your own vial inputs.

Full GHR-2 (GHRP-2) library reference

GHR-2 (GHRP-2) dosage chart

This summary table compares available dose amounts and schedules by administration route.

RouteDoseFrequency & duration
Injectable100–300 mcg2-3 times daily · 8-12 weeks
Intranasal100 mcg2x daily · ~4 wk
Oral900 mcg/kgTwice daily · 12 months

GHR-2 (GHRP-2) dosage by administration route

GHR-2 (GHRP-2) injectable dosage

Reported injectable protocols use 100–300 mcg per administration, 2-3 times daily for 8-12 weeks. Another reported once-daily subcutaneous progression uses 100 mcg in weeks 1–2, 150 mcg in weeks 3–4 and 200 mcg from week 5, over an 8–16-week course. This is distinct from patterns with two or three administrations per day.[1][2][3][4][5][12]

GHRP-2, also known as pralmorelin, activates the ghrelin receptor and stimulates GH release. Appetite and endocrine effects are relevant when assessing tolerability.[1][2][3][6]

GHR-2 (GHRP-2) intranasal dosage

Reported-use amounts for GHR-2 (GHRP-2) are 100 mcg per administration, 2x daily, for approximately 4 wk.[11]

GHRP-2, also known as pralmorelin, activates the ghrelin receptor and stimulates GH release. Appetite and endocrine effects are relevant when assessing tolerability.[7][4][5][6][1][3][11]

GHR-2 (GHRP-2) oral dosage

A documented investigational oral amount is 900 mcg/kg twice daily for 12 months in children with growth-hormone deficiency. This pediatric, weight-based regimen does not define an adult oral dose.[8]

GHRP-2, also known as pralmorelin, activates the ghrelin receptor and stimulates GH release. Appetite and endocrine effects are relevant when assessing tolerability.[8][6][1][3]

Frequency and timing

Injections are commonly timed in the morning, before a workout or before bed, usually away from food. The nasal pattern lists morning and bedtime administration away from food; the oral preparation follows its separate twice-daily schedule.[1][2][3][4][5][11][8]

Cycle length and breaks

Injectable: 8-12 weeks. Intranasal: ~4 wk. Oral: 12 months. A standard break interval between courses is not established.[1][2][3][4][5][11][8]

GHR-2 (GHRP-2) dosage calculator

Convert your chosen GHR-2 (GHRP-2) amount into volume and U-100 syringe units. Adjust the inputs to match your vial and preparation.

GHR-2 (GHRP-2) dosage calculator

Calculate concentration, draw units and total doses.

mcg
mg
mL
Concentration
1.66667mg/mL
Draw units
6units
Total doses
50
Volume per dose
0.06mL
Daily amount
200mcg
Complete days per vial
25
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GHR-2 (GHRP-2) safety and side effects

Approval and product quality

GHR-2 (GHRP-2) is not an FDA-approved drug.[9][10]

Side effects and long-term safety

Appetite change, water retention, glucose and IGF-1 changes, and ACTH, cortisol or prolactin effects are relevant to ghrelin-receptor and GH-axis stimulation. Injectable product quality, pregnancy, active malignancy and sports restrictions also require attention.[1][2][3][9][10]

Route-specific dosing limits

Long-term unapproved GH-secretagogue use needs lab monitoring and careful exclusion of higher-risk contexts. Reported-use intranasal schedules and additional protocol patterns are not established human treatment regimens or approved product instructions.[1][2][3][9][10][12][11]

Common GHR-2 (GHRP-2) dosage questions

Can GHR-2 (GHRP-2) doses be transferred between routes?

No. Each route and formulation has its own exposure and administration requirements. Use the dose information for the exact presentation rather than copying a tablet, injection or local-product amount to another route.[1][2][3][4][5][8]

What dosage is listed for GHR-2 (GHRP-2)?

Reported injectable protocols use 100–300 mcg per administration, 2-3 times daily for 8-12 weeks.[1][2][3][4][5][12]

Does GHR-2 (GHRP-2) have a standard cycle or break interval?

Injectable: 8-12 weeks. Intranasal: ~4 wk. Oral: 12 months. A standard break interval between courses is not established.[1][2][3][4][5][11][8]

Sources

Show citationsHide citations
[1]Growth hormone/insulin-like growth factor-1 response to acute and chronic growth hormone-releasing peptide-2, growth hormone-releasing hormone 1-44NH2 and in combination in older men and women with decreased growth hormone secretion.Endocrine, 2001 Feb. human clinical.[2]Pharmacokinetics and pharmacodynamics of growth hormone-releasing peptide-2: a phase I study in children.The Journal of clinical endocrinology and metabolism, 1998 Apr. human clinical.[3]Obese subjects respond to the stimulatory effect of the ghrelin agonist growth hormone-releasing peptide-2 on food intake.Obesity (Silver Spring, Md.), 2006 Jun. human clinical.[4]Treatment effects of intranasal growth hormone releasing peptide-2 in children with short stature.The Journal of endocrinology, 1997 Oct. human clinical.[5]One-year intranasal application of growth hormone releasing peptide-2 improves body weight and hypoglycemia in a severely emaciated anorexia nervosa patient.Journal of cachexia, sarcopenia and muscle, 2015 Sep. review.[6]Pralmorelin: GHRP 2, GPA 748, growth hormone-releasing peptide 2, KP-102 D, KP-102 LN, KP-102D, KP-102LN.Drugs in R&D, 2004. review.[7]Diagnostic studies with intravenous and intranasal growth hormone-releasing peptide-2 in children of short stature.The Journal of clinical endocrinology and metabolism, 1995 Oct. human clinical.[8]Changes in appetite and body weight in response to long-term oral administration of the ghrelin agonist GHRP-2 in growth hormone deficient children.Journal of pediatric endocrinology & metabolism : JPEM, 2003 Sep. human clinical.[9]Search Drugs@FDA for GHRP-2U.S. Food and Drug Administration / openFDA. database query.[10]United Pharmacy MARCS-CMS 553916 - February 11, 2019U.S. Food and Drug Administration, 2019-02-11. regulatory.[11]PepFlow peptide cheat sheet — reported-use and product-orientation reference (not clinical research)PepFlow. reference catalog.[12]GHRP-2 — Everything Peptide reported protocol (educational reference, not clinical evidence)Everything Peptide. reference catalog.

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