PubMed
Gonadotropin-releasing hormone agonists and antagonists in assisted reproduction
Al-Inany HG, Youssef MA, Aboulghar M, et al. Cochrane Database Syst Rev. 2016
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Side-by-side observational reports from PeptIQ users. This compares self-reported patterns — not clinical head-to-head trials.
Last reviewed . By the PeptIQ team.
From check-in ratings — separate from side effects logged below. Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.
Favorable 97% · Mixed 3% · Unfavorable overall 0%
Benefits users selected when logging a favorable or mixed check-in.
Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.
Median bucket: 100–200 mcg · Most common: 100–200 mcg
Reports span 50–400 mcg
Anonymized self-reports from PeptIQ users — not prescribing guidance. Buckets group similar logged amounts; open-ended top buckets mean “at least” that dose.
Among repeat reporters, 87% said they felt similar to their last entry, 13% more positive, and 0% more negative.
Overall, repeat reporters leaned more positive than their previous entry.
Median gap between entries: 235 days · Based on 23 repeat reporters
From check-in ratings — separate from side effects logged below. Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.
Favorable 99% · Mixed 1% · Unfavorable overall 0%
Benefits users selected when logging a favorable or mixed check-in.
Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.
Median bucket: 2–3 mg · Most common: 1–2 mg
Reports span 0 to ≥ 5 mg (open-ended top bucket)
Anonymized self-reports from PeptIQ users — not prescribing guidance. Buckets group similar logged amounts; open-ended top buckets mean “at least” that dose.
Among repeat reporters, 100% said they felt similar to their last entry, 0% more positive, and 0% more negative.
Overall, repeat reporters leaned similar or mixed compared to their previous entry.
Median gap between entries: 51 days · Based on 45 repeat reporters
Published sources linked on the Gonadorelin and Retatrutide wiki pages.
PubMed
Al-Inany HG, Youssef MA, Aboulghar M, et al. Cochrane Database Syst Rev. 2016
PubMed
Collado-Sole A, Borjini N, Zhai J, et al. Science (New York, N.Y.). 2026
PubMed
Moore AM. eLife. 2024
PubMed
Rosenstock J, Frias J, Jastreboff AM, et al. Lancet. 2023
PubMed
Jastreboff AM, Kaplan LM, Frias JP, et al. N Engl J Med. 2023
ClinicalTrials.gov
ClinicalTrials.gov. Clinical trial registry. 2024
ClinicalTrials.gov
ClinicalTrials.gov. Clinical trial registry. 2024
PubMed
Jastreboff AM, Kaplan LM, Frías JP, et al. The New England journal of medicine. 2023
PubMed
Katsi V, Koutsopoulos G, Fragoulis C, et al. Biomolecules. 2025