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[9] Coppers toxicity mechanism is well characterised: free or loosely bound Cu(II)/Cu(I) participates in Fenton-type redox chemistry, generating hydroxyl radicals that damage lipids, proteins, and DNA

The peptide's documented interaction with dopamine D2 receptors, including attenuation of amphetamine-induced hyperlocomotion and modification of haloperidol-induced catalepsy, suggests it could modulate the effects of dopamine agonists (pramipexole, ropinirole) or antagonists (antipsychotics) 4

The 2 class contains the 2A , 2B , and 2C receptors

For a 5mg vial where you might draw 10-20 individual doses, using sterile water would waste the vast majority of your peptide