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Safety across the full program was consistently favorable: adverse events, primarily mild headache and gastrointestinal symptoms, occurred at rates comparable to placebo, with no treatment-related discontinuations, no IGF-1 elevation, and no impact on glucose metabolism
In severe cases, patients may develop visual disturbances due to optic neuropathy
Again and again, regulators said they could find little data on safety or effectiveness and raised concerns about risks of contamination, allergic reactions and quality control
The honest answer is that it depends, and it depends most on whether you are actually deficient
Your provider can outline options and adjust as your needs change
Toxic solvent residues DMF (dimethylformamide) Known liver toxin Associated with reproductive toxicity Must be removed to extremely low limits in GMP drugs DCM (dichloromethane / methylene chloride) Probable human carcinogen Central nervous system depressant Dangerous even in small amounts if injected TFA (trifluoroacetic acid) Corrosive Can remain in peptides as unmeasured TFA salt Pharmaceutical products often convert TFA salts to safer counterions Without validated HPLC, mass spectrometry, and residual solvent testing, patients may be injected with harmful chemical contaminants
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