Doctor insights on:
How Does Vyvanse Work In The Brain
Amphetamines: Amphetamines work in the brain streamlining the neurotransmitter process. They block the reuptake and destruction of the noradrenalin and Adrenalin (neurotransmitters) in the synapsis (the contact in between neurons) allowing more time in contact with the receptor which will produce a response in the neuron which is stimulated to produce an action potential in the responding neuron. ...Read more
Addiction: Certain substances will activate a center of the brain we have labeled the addiction center. This center of the brain is activated the behavior becomes reinforced to the point that it is difficult to suppress. Drugs will do this as well as will certain foods such as carbohydrates and high calorie meals. ...Read more
No problem: If you want to find out how the brain works, you can start with one of the standard references: Principles of Neural Science, by Kandel and Schwartz. I have the fifth edition. It's 1709 pages long. It covers the basics. It's an introduction. If you really want to get into the subject, there are more and bigger books you can read. ...Read more
Armodafinil is a : eugeroic medication. Its exact mechanism of action (MOA) is unknown. It acts on the brain's arousal & alertness mechanisms. (They're not the same.) That's about the most I can tell you if you have no further knowledge of neurophysiology, neurochemistry or neuropharmacology. Any further discussion would be so oversimplified that it wouldn't really explain anything. ...Read more
What does Vyvanse (lisdexamfetamine) do to the brain of a person with ADHD does it change their perspective ?
Complicated: Vyvanse (lisdexamfetamine) is a prodrug that has to be converted, probably by GI enzymes, into dextroamphetamine, which acts like amphetamine in the brain. Vyvanse (lisdexamfetamine) was formulated to reduce abuse potential. It increases availability of Dopamine ; norepinephrine, which improves attention. Adverse effects include anaphylaxis, severe rash ; cardiac probs. Has preg “c” rating (use w/ caution). Avoid if breast feeding. ...Read moreSee 1 more doctor answer
Stimulant: Ritalin (methylphenidate) will increase the level of nor epinephrine and dopamine in your brain. Dopamine is needed for focused attention and is a substance that released makes you feel good. Nor epinephrine's effect is to make you more alert. It can cause you to have a bit of a racing heart beat and increase in blood pressure. When Ritalin (methylphenidate) is prescribed these are measured to watch for unwanted effects ...Read more
Does an eeg hurt/how long will it take and how long will an MRI on the brain w/out iv contrast for migraines take? Nervous and in so much pain. Help?
How long does it take for zeprexa and Effexor to leave the body after last taking either? How can we check how much of either are left in our system?
It Depends: Drugs clear the body at different rates depending on the form given, how much was given, how long you took it, what other meds you take and your own metabolic rate. Effexor has a half-life (time for half the dose to clear body) of up to 6 hours and Xyprexa's half-life is up to 30 days. These 2 meds usually are dosed for a long term and should not be stopped without MD supervision. Check with MD. ...Read more
How long does phentermine take to absorb in the urinary system so it will show in a urine drug test?
It varies: Normally accepted half life is 4-16 hours but one recent study reported 40 hour. This means 1/2 of the total in your system should be gone in up to 40 hours.. Another 1/2 of whatever is left will take another 40 hours and so on. So there is no one clear simple answer. Best guess is that it will probably be gone by 10 days but could be sooner. ...Read more
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