<s>[INST] what does the use of methamphetamine have on a person suffering from long term chronic depression? Does the up s and down s that the drug causes mimic bipolar depression? Is there a blood test that tells you what your levels of different hormones are, such as dopamine and seritonon and what should they be? [/INST] Hi.I understand your concern. Methamphetamine is psycho stimulant Chat Doctor. It would produce psychotic symptoms which will mix with depression and mimic like psychotic depression or bipolar disorder. Treatment will be difficult thereafter. So please avoid it and do treatment for depression. There are no blood tests for dopamine or serotonin. They are euro transmitters, and it is chemical basis behind psychiatric illness. PET SCAN is useful to identify receptors of these neurotransmitters. Consult psychiatrist and get treatment for depression. Wish you a very good health. Still have query then feel free to ask. Thank you. </s>