Bromocriptine

It is available in the salt form of Bromocriptine Mesylate.

Action:
It is a dopamine agonist.
Uses:
It is used in the treatment of Parkinson's disease. It is also used in the treatment of Pituatory tumors, type 2 diabetes and neuroleptic malignant syndrome.

Biperiden

It is available in the salt form of Biperiden Hydrochloride or Biperiden lactate.

Action:
It possesses Anti-cholinergic properties.

Uses:
It is used in the management of Parkinson's disease.

Benztropine

It is available in the form of Benztropine Mesylate.

Action:
It possesses both Anti-cholinergic as well as Anti-histaminic properties. Its anti-cholinergic property is mainly important in the control of Parkinson's disease.
Uses:
It is used in the treatment of Parkinson's Disease.

Apomorphine

It is a derivative of morphine but is less active and work as a dopaminergic agonist.

Mechanism of Action:
It causes an increase in the dopamine amount in brain.
Uses:
It is used as an emetic and in little doses can also be used as sedative. It is also used as an Anti-parkinsonian agent.