It interferes with the transport of the neurotransmitter dopamine.
Morphine
Codeine
Cocaine
$\alpha$ -interferons
The vector for causing sleeping sickness in man is
After infection of germs immunity acquired is
The process of spreading the cancerous cells to distant site is known as
A person is suffering from frequent episodes of nasal discharge, nasal congestion, reddening of eyes and watery eyes. These are the symptoms of