CJC-1295 with DAC side effects and risks
An experimental long-acting peptide that triggers growth hormone release, with no proven muscle or recovery benefit.
Also called: CJC-1295 DAC, DAC:GRF, DAC-GRF.
GHRH analogues · Long-acting GHRH receptor agonist with an albumin-binding tag.
Reported side effects
- Injection-site irritation, redness, pain or itching: About 70% active in the single dose trial; all 20 active in the repeat dose trial; placebo redness 3/4 in repeat dosing., mild. Check persistent or spreading redness; fever, pus or severe pain needs urgent assessment. (source)
- Headache: Single dose: 63% active versus 14% placebo. Repeat dosing: 20–80% across active groups versus 50% placebo., moderate. Severe headache or vision change needs urgent care. (source)
- Diarrhea: 43% active versus 0% placebo; 45% at 125 and 100% at 250 mcg/kg in the published report., moderate (source)
- Flushing, warmth or transient low blood pressure: Single dose: 30% active, 0% placebo. Repeat dosing: flushing 40–100%, depending on dose., moderate. Fainting, chest pain or persistent fast heart rate needs urgent assessment. (source)
- Local hives: Almost 30% of active recipients in the single dose trial., moderate. Widespread hives, throat swelling or breathing trouble is an emergency. (source)
- Nausea or abdominal pain: 20% reported in the trial paper; placebo 0%. Exact pooled denominator was not clear., moderate (source)
- Faster heart rate: Dose related in the 12 man pulse study; counts and rates unavailable., moderate (source)
- High blood sugar, swelling or joint pain: Seen with related tesamorelin; CJC rates remain unknown. Short DAC trials found no consistent blood sugar change., moderate (source)
- Serious allergic or immune reactions: FDA identifies immunogenicity concerns; frequency with repeated exposure is unknown., serious (source)
- Fatal heart attack during a trial: One death after dose 11 in the terminated HIV trial. Causation and a reliable incidence rate are unresolved., serious (source)
Stop and get help if
- Trouble breathing, throat or face swelling, widespread hives, or collapse: Stop using CJC-1295 and call emergency services now.
- Chest pain, fainting, severe breathlessness, or a sustained racing heart: Stop exposure and seek emergency care now.
- Severe headache with vision change, vomiting, or new weakness: Get emergency care now; do not assume this is normal flushing.
- Rapid swelling or weight gain with shortness of breath: Seek urgent care now for possible fluid overload or heart problems.
- Hot spreading injection-site redness, severe pain, pus, or fever: Stop injections and get urgent same-day care; fever or rapidly worsening illness needs emergency care.
- Confusion, vomiting, marked thirst or urination, or low sugar that does not improve: Check blood sugar if available and seek urgent care; severe confusion or unconsciousness needs emergency services.
Who should avoid it
- pregnant: CJC pregnancy safety is unknown. Stop use during pregnancy.
- breastfeeding: Milk transfer and infant effects are unknown; avoid exposing a nursing infant.
- tryingToConceive: Fertility and early-pregnancy effects are unknown. This is a precautionary screen.
- under18: FDA found no safety data in children. Growth hormone stimulation can affect growth.
- activeCancer: Growth hormone can support cell growth. Avoid CJC with active cancer, following related-drug precautions.
- cancerHistory: A prior cancer needs individual review; long-term recurrence risk with CJC is unknown.
- other: Excess growth hormone makes CJC unsuitable; pituitary disease needs specialist review.
- other: A serious allergy to CJC or its vial ingredients means avoiding further use.
- diabetes: Growth hormone can raise blood sugar. Diabetes was excluded from the HIV study; direct safety data are lacking.
- diabeticRetinopathy: Related tesamorelin guidance warns about worsening diabetic eye disease; CJC-specific risk is unknown.
- heartCondition: Heart-rate and blood-pressure changes matter with heart disease; longer-term cardiac safety is unknown.
- uncontrolledBloodPressure: Blood-pressure instability and GH-related fluid retention warrant review before further exposure.
- sleepApnea: Sleep apnea raises baseline cardiometabolic risk; new snoring or breathing pauses need assessment.
- kidneyDisease: No kidney dosing study was found. Kidney disease can also cause swelling and change hormone tests.
- liverDisease: No liver dosing study was found; liver disease can distort IGF-1 blood tests.
- surgeryPlanned: Tell the anesthesia team about peptide and other hormone use; no perioperative CJC safety study was found.
- testedAthlete: WADA prohibits GHRH analogues at all times, including CJC-1295.
Interactions
- Insulin: A related drug, tesamorelin, can raise blood sugar. CJC effects on insulin needs are unknown; review readings when exposure starts or stops.
- Sulfonylureas: CJC interactions are unknown. These medicines can cause severe low blood sugar; review readings with your clinician when CJC starts or stops.
- Other GH, GHRH or ghrelin-pathway drugs: Effects may add, raising IGF-1 or glucose and fluid-retention concerns. No CJC/ipamorelin combination trial was found.
- Glucocorticoid replacement: Tesamorelin's label warns growth hormone can lower cortisol and change steroid replacement needs. This is untested with CJC.
- Medicines affected by liver CYP enzymes: Tesamorelin's label warns growth hormone may change drug breakdown. CJC interactions and medication adjustments are unknown.
- Anticoagulants: Blood thinners increase bleeding and bruising from needle punctures. A direct CJC drug interaction has not been demonstrated.
Product quality risks
- DAC and no-DAC names are confused. FDA considers them different active moieties with different safety and exposure profiles.
- FDA found missing impurity, aggregate and endotoxin data in reviewed certificates. A high purity percentage alone cannot show injection safety.
- A 2010 seized sample contained a 29-amino-acid peptide consistent with the short form sold as CJC-1295; it was not proof of DAC identity.
- A 2019 seizure study identified glycine-added modified GRF and other secretagogues. Seized material is not a representative market survey.
- Regulators warn unapproved peptide vials may have too much, too little or no stated ingredient, particles, microbes or endotoxin.
Related to CJC-1295 with DAC
- CJC-1295 without DAC: A peptide intended to trigger growth hormone release, with no human dosing study found.
- Tesamorelin: A peptide approved for deep abdominal fat in adults with HIV lipodystrophy.
- Sermorelin: An experimental short-acting peptide that triggers growth hormone release, with limited evidence of adult benefits.
- Ipamorelin: An experimental peptide that triggers growth hormone release.
Sources
- 21 CFR 216.23 — Bulk drug substances that can be used to compound drug products in accordance with section 503A of the Federal Food, Drug, and Cosmetic Act., Office of the Federal Register · eCFR · 2026
- 503B Bulk Drug Substances List, FDA · FDA · 2026
- Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks, FDA · FDA · 2026
- Concerns regarding the public health risks associated with unapproved peptide products, Therapeutic Goods Administration and Chief Medical Officer · Therapeutic Goods Administration · 2026
- Medicines, European Medicines Agency · European Medicines Agency · 2026
- The 2026 Prohibited List, World Anti-Doping Agency · WADA · 2026
- Therapeutic Goods (Poisons Standard—October 2026) Instrument 2026, Australian Government · Australian Government · 2026
- Think twice before injecting peptides bought online: unauthorized products can seriously harm you, Health Canada · Health Canada · 2026
- EGRIFTA WR (tesamorelin) for injection, for subcutaneous use, U.S. Food and Drug Administration · FDA · 2025
- Supply unlicensed medicinal products (specials), MHRA · 2025
- December 4, 2024 Pharmacy Compounding Advisory Committee Meeting, FDA · 2024
- FDA Briefing Document Pharmacy Compounding Advisory Committee (PCAC) Meeting December 4, 2024, US Food and Drug Administration · 2024
- Anticoagulant medicines - Side effects, NHS
- DailyMed - GLUCOTROL XL- glipizide tablet, extended release, Pfizer Inc. · DailyMed
- Know When to Go to the ER, American College of Emergency Physicians · American College of Emergency Physicians
Sources checked: 2026-10-18.
Information only, not medical advice. Peptifacts does not sell anything and does not link to sellers.