Question

question 27
many effective antischizophrenic drugs
are d2 blockers.
are d2 agonists.
are polarized.
are also effective against parkinsons disease.

Explanation:

Antipsychotic drugs often work by blocking dopamine - 2 (D2) receptors. D2 agonists would increase dopamine activity and are not typical for antipsychotic treatment. Polarity is not a characteristic defining effective antipsychotics. And most antipsychotics are not effective against Parkinson's as they can worsen Parkinsonian symptoms due to dopamine - blocking effects.

Answer:

A. are D2 blockers.