Excessive dopamine causes schizophrenia. A drug used to treat schizophrenia binds to dopamine receptors in synapses. This binding does not lead to Action potentials. How can the drug used to treat schizophrenia bind to the same receptor as dopamine?

Schizophrenia is caused by excessive dopamine production, which leads to an increase in generation of action potentials at the post synaptic membrane. Drugs used to treat schizophrenia must block binding of dopamine to receptors on the post synaptic membrane.This binding is possible as the drug has a structure that is similar to that of dopamine and is thus able to bind to the binding site of the post synaptic recepter.