Tetrahydropapaveroline, also known as norlaudanosoline, is a tetrahydroisoquinoline alkaloid. It is also classified as a benzylisoquinoline alkaloids.
Tetrahydropapaveroline is relevant to brain pathologies.
It can be formed in trace amounts in the brain by a condensation reaction of dopamine and dopaldehyde (a metabolite of dopamine).
It inhibits dopamine uptake within the cerebral cortex.