Unveiling the Blood-Brain Barrier: Can Dopamine Cross the BBB?
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4 min read
For decades, it has been known that systemic dopamine is blocked by the brain's natural defenses. The question, **can dopamine cross the BBB?**, has a definitive 'no' for a simple but crucial reason related to the molecule's chemical properties. This pharmacological fact is vital for understanding how doctors treat diseases like Parkinson's, which are caused by a lack of dopamine in the brain.