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Specimen Atlas of Research Peptides81 plates · MIT
Side-by-side · Research reference

AdamaxvsPT-141

Side-by-side comparison across mechanism, dosage, evidence, side effects, administration, and stack synergies. Citations on every claim where available.

AAnimal-StrongHUMAN-REVIEWED20/47 cited
BFDA-ApprovedHUMAN-REVIEWED13/41 cited
Adamax
ACTH(4-10) Analogue · Russian Nootropic
1.4×BDNF protein ↑Dolotov 2006
BDNF mRNA (exon III)Dolotov 2006
1.6×trkB phosphorylationDolotov 2006
Intranasal · Research Use Only
PT-141
MC4R Agonist · FDA-Approved (HSDD)
SQ · Abdomen / thigh · ≥45 min before sex

01Mechanism of Action

Parameter
Adamax
PT-141
Primary target
Melanocortin receptors (MC-Rs) in hippocampus and cortex
Melanocortin-4 receptor (MC4R) in hypothalamusSimerly 2023VYLEESI (bremelanotide injecti 2019
Pathway
ACTH(4-10) fragment → MC-R binding → BDNF/trkB upregulation → neurotrophic signaling
MC4R agonism in paraventricular nucleus → autonomic + neuroendocrine sexual arousal pathwaysSimerly 2023
Downstream effect
Increased hippocampal BDNF expression, trkB tyrosine phosphorylation, enhanced conditioned avoidance learning, circadian rhythm normalizationDolotov 2006Arushanian 2008
Increased sexual desire and arousal; central rather than peripheral mechanismClayton 2015
Feedback intact?
Non-endocrine — devoid of adrenal axis effectsvan 1978
Origin
ACTH(4-10) fragment with modified amino acid sequence at positions 8, 9, 10Teter 2001
Cyclic 7-AA peptide derived from α-MSH (agonist Ac-Nle-Asp-His-D-Phe-Arg-Trp-Lys-OH cyclic)VYLEESI (bremelanotide injecti 2019
Antibody development

02Dosage Protocols

Parameter
Adamax
PT-141
Animal dose (rat)
50 mcg/kg body weightDolotov 2006
Single intranasal application; produced maximal BDNF response.
Route
Frequency
Single-dose or chronic administration protocols
Chronic dosing normalized circadian rhythms; single-dose produced acute BDNF elevation.
PRN, max 8 doses / month
Human dose (exploratory)
Not established — limited human data
ACTH(4-10) and analogs dosed 30–60 mcg intranasally in early human studies.
Evidence basis
Animal (rodent, rabbit) studies; minimal human RCT data
FDA-approved (HSDD pre-menopausal women)VYLEESI (bremelanotide injecti 2019Clayton 2015
Timing
Variable — chronic administration for circadian effects
≥45 min before sexual activity
Standard dose
1.75 mg SQVYLEESI (bremelanotide injecti 2019
Single dose ≥45 min before anticipated sexual activity. Max 1 dose / 24 hr.
Lower / starter dose
1 mg (off-label)
Duration
PRN; reassess if no benefit after 8 doses
Reconstitution
Pre-filled commercial pen (Vyleesi). Research vial: bacteriostatic water.

04Side Effects & Safety

Parameter
Adamax
PT-141
Cardiovascular effects
ACTH(4-10) fragments may have pressor and cardioaccelerator actions at high dosesGruber 1984
Effects attenuated by α/β-receptor antagonists; observed at 30–1000 nmol/kg IV in rats.
Natriuretic effect
ACTH(4-10) exhibited natriuretic activity at lower doses (7 nmol/kg)Gruber 1984
Behavioral suppression
Suppression of aggression, reduced orientation-cognition reactions in rabbitsTeter 2001
May reflect anxiolytic or stress-dampening profile.
Long-term safety
Unknown — chronic human safety data lacking
Nausea
Common (~40%); often transientVYLEESI (bremelanotide injecti 2019
Flushing
Common, transient
Injection site reaction
Erythema, mild pain
Headache
Common
Hyperpigmentation (focal)
Rare focal skin darkening; reversible after discontinuationVYLEESI (bremelanotide injecti 2019
Hypertension (transient)
Mean ↑6 mmHg systolic peaking ~4 h post-dose; resolves within 12 hVYLEESI (bremelanotide injecti 2019
Pregnancy / OB
Contraindicated
Cardiovascular disease
Use caution; transient BP rise
Absolute Contraindications
Adamax
  • ·Pregnancy and lactation (precautionary; no data)
  • ·Active cardiovascular instability (due to potential pressor effects)
PT-141
  • ·Uncontrolled hypertension
  • ·Known cardiovascular disease (caution)
  • ·Pregnancy
Relative Contraindications
Adamax
  • ·Hypertension (monitor BP if using higher doses)
  • ·Renal impairment (natriuretic effects may alter electrolyte balance)
PT-141
  • ·Pre-existing hyperpigmentation disorders
  • ·MC4R-pathway-dependent psychiatric conditions

05Administration Protocol

Parameter
Adamax
PT-141
1. Reconstitution (if lyophilised)
Add sterile water or bacteriostatic water to lyophilised vial per manufacturer guidance. Roll gently — do not shake. Ensure clarity before use.
Vyleesi: pre-filled auto-injector. Research vial: 2 mL bacteriostatic water per 10 mg → 5 mg/mL.
2. Route
Intranasal administration is the primary route in animal and exploratory human studies. Delivered via nasal spray or dropper to ensure mucosal absorption.Dolotov 2006Smolnik 2000
SQ — abdomen or thigh.
3. Timing
Variable. Single-dose protocols for acute cognitive tasks; chronic daily dosing for circadian rhythm normalization and sustained neuroprotection.
≥45 min before sexual activity for peak effect. Effect persists ~6–8 h.
4. Storage
Lyophilised: room temperature, light-protected. Reconstituted: refrigerate 2–8 °C, use within manufacturer-specified timeframe.
Vyleesi: room temp ≤30 °C. Research vial: refrigerate after reconstitution.
5. Needle
Auto-injector (Vyleesi) or 29–31G, 4–8 mm insulin syringe.

06Stack Synergy

Adamax
+ Semax
Moderate
View Semax

Both Adamax and Semax are ACTH(4-10)-derived nootropics acting via melanocortin receptors and BDNF upregulation. Adamax has distinct amino acid modifications at positions 8-10, potentially offering complementary receptor binding profiles or metabolic stability. Stacking may amplify neurotrophic signaling and cognitive enhancement, though direct synergy studies are absent. Theoretical multi-pathway benefit.

Adamax
Research dose intranasal
Semax
300–600 mcg intranasal
Frequency
Once daily, morning or pre-cognitive task
Primary benefit
Enhanced BDNF upregulation, cognitive performance, neuroprotection
PT-141
— no documented stacks