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TRUTH IN PEPTIDES

Risk Profiles

Compound-specific risk profiles covering side effects, contraindications, and monitoring recommendations for each peptide in the library.

Risk Level Guide

Low — generally well-toleratedModerate — common side effects, monitoring requiredModerate-High — significant monitoring and precautions needed

GLP-1 Receptor Agonists

Semaglutide

Moderate

Common Side Effects

  • Nausea (20-44%)
  • Vomiting (5-24%)
  • Diarrhea (8-30%)
  • Constipation (5-24%)
  • Injection site reactions

Serious Risks

  • Pancreatitis (rare)
  • Gallbladder disease
  • Thyroid C-cell tumors (animal data; boxed warning)
  • Hypoglycemia when combined with insulin or sulfonylureas

Contraindications

  • Personal or family history of medullary thyroid carcinoma (MTC)
  • Multiple endocrine neoplasia syndrome type 2 (MEN 2)
  • History of pancreatitis

Monitoring Requirements

  • Weight and BMI at each visit
  • HbA1c every 3 months if diabetic
  • Lipase/amylase if GI symptoms worsen
  • Thyroid function baseline and annually

Tirzepatide

Moderate

Common Side Effects

  • Nausea (12-33%)
  • Diarrhea (12-23%)
  • Decreased appetite
  • Vomiting (5-9%)
  • Dyspepsia

Serious Risks

  • Pancreatitis (rare)
  • Gallbladder disease
  • Thyroid C-cell tumors (boxed warning, animal data)
  • Severe GI events including ileus

Contraindications

  • Personal or family history of MTC
  • MEN 2 syndrome
  • History of severe pancreatitis

Monitoring Requirements

  • Weight and BMI at each visit
  • HbA1c every 3 months if diabetic
  • Lipase/amylase with GI complaints
  • Renal function (dehydration risk from GI side effects)

Growth Hormone Secretagogues

MK-677 (Ibutamoren)

Moderate-High

Common Side Effects

  • Increased appetite
  • Water retention and bloating
  • Joint pain
  • Elevated blood glucose
  • Lethargy

Serious Risks

  • Insulin resistance and glucose intolerance
  • Worsening of existing diabetes
  • Potential tumor growth promotion (GH/IGF-1 axis)
  • Carpal tunnel syndrome

Contraindications

  • Active malignancy
  • Uncontrolled diabetes
  • Pituitary tumors
  • History of carpal tunnel syndrome

Monitoring Requirements

  • Fasting glucose and HbA1c every 3 months
  • IGF-1 levels every 3-6 months
  • Fasting insulin levels
  • Blood pressure monitoring

CJC-1295 / Ipamorelin

Low-Moderate

Common Side Effects

  • Injection site reactions
  • Water retention
  • Tingling or numbness in extremities
  • Headache
  • Flushing

Serious Risks

  • Potential tumor growth promotion (theoretical)
  • Carpal tunnel symptoms at high doses
  • Glucose intolerance

Contraindications

  • Active malignancy
  • Pituitary disorders
  • Pregnancy or breastfeeding

Monitoring Requirements

  • IGF-1 levels every 3-6 months
  • Fasting glucose
  • General metabolic panel

Tissue Repair Peptides

BPC-157

Low (Limited Human Data)

Common Side Effects

  • Injection site discomfort
  • Nausea (oral form)
  • Dizziness (rare)
  • Headache (rare)

Serious Risks

  • Limited human clinical trial data
  • Unknown long-term effects
  • Theoretical concern for tumor angiogenesis (promotes blood vessel growth)

Contraindications

  • Active malignancy (theoretical, due to angiogenic properties)
  • Pregnancy or breastfeeding

Monitoring Requirements

  • General health monitoring
  • No established monitoring protocol due to lack of clinical trials

TB-500 (Thymosin Beta-4)

Low (Limited Human Data)

Common Side Effects

  • Injection site reactions
  • Headache
  • Lethargy
  • Temporary lightheadedness

Serious Risks

  • Limited human safety data
  • Theoretical tumor growth promotion
  • Unknown interactions with immune-modulating drugs

Contraindications

  • Active malignancy
  • Pregnancy or breastfeeding

Monitoring Requirements

  • General health monitoring
  • CBC if used long-term

Hormone Optimization

Testosterone (TRT)

Moderate

Common Side Effects

  • Acne
  • Hair thinning or loss
  • Increased hematocrit
  • Testicular atrophy
  • Mood changes
  • Fluid retention

Serious Risks

  • Polycythemia (elevated red blood cells) — stroke and clot risk
  • Cardiovascular events (FDA warning)
  • Liver toxicity (oral forms)
  • Sleep apnea worsening
  • Infertility during use

Contraindications

  • Prostate or breast cancer
  • Hematocrit > 54%
  • Severe untreated sleep apnea
  • Uncontrolled heart failure
  • Desire for fertility (without adjunct HCG)

Monitoring Requirements

  • CBC with hematocrit every 3-6 months
  • PSA and digital rectal exam annually
  • Comprehensive metabolic panel
  • Lipid panel every 6-12 months
  • Total and free testosterone levels
  • Estradiol levels

Enclomiphene

Low-Moderate

Common Side Effects

  • Visual disturbances (floaters, blurring)
  • Headache
  • Nausea
  • Hot flashes
  • Mood changes

Serious Risks

  • Visual changes (discontinue if persistent)
  • Ovarian hyperstimulation (in females)
  • Thromboembolic events (rare)

Contraindications

  • Liver disease
  • Undiagnosed abnormal uterine bleeding
  • Ovarian cysts (females)
  • Pituitary tumors

Monitoring Requirements

  • LH, FSH, total testosterone every 6-8 weeks initially
  • Liver function tests
  • Visual symptom assessment
  • Semen analysis if fertility is a goal