[meowface]

I'm confused by what you're trying to say. The article repeatedly stated that levodopa has been observed to create higher impulsivity.

I imagine any pure dopamine agonist can be prone to creating an impulse disorder if you take a sufficiently high dose.

[caycep]

The impulsivity seen in patients only happens in the synthetic, and possible more "selective" dopamine agonists that work more with certain dopamine receptor subtypes. Whereas, levodopa, which is a dopamine precursor and presumable not selective at all (ie. works on all receptors) do not have the impulsivity effect, or at least as dramatic, on these same or similar patients.