A member asked:

Limbs get cold in the winter but i noticed it gets extremely cold with 10mg adderall (dextroamphetamine and racemic amphetamine). but when 20mg was taken, there was no such side effect. howcome?

A doctor has provided 1 answer

Vasoconstriction: Adderall (dextroamphetamine and racemic amphetamine) acts as a stimulant to your sympathetic nervous system by increasing norepinephrine & dopamine. This can lead to elevated blood pressure & heart rate. It can also cause vasoconstriction of the blood vessels in your limbs which can cause you to feel warmer at higher doses by allowing your body to conserve heat. When blood vessels are dilated, you feel cooler.

Answered 5/26/2015

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