H2 refers to nerve cells in your body and brain which are able to receive Histamines. There are H1 and H2 receptors for Histamines, maybe others.
So, an H2 antagonist will prevent Histamines from being absorbed by the nerve cell receptor sites.
antagonist
If antagonist did not want to harm protagonist, he wouldn't be antagonist. His opposition to protagonist is what makes him antagonist.
Antagonist or villain.
who is the antagonist in sounder
Cory is the antagonist.
Bryce is the antagonist.
Antagonist
The main charachter is usually reffered to as the protagonist(or the good guy) and the person that he/she conflicts with is usually refered to as the antagonist(or the bad guy).
A character who is opposed or competes the main character. * is called the antagonist while the main character is called the protagonist,
Antinous is an antagonist.
curley is the antagonist
I believe the antagonist would be Stella. Another antagonist would be Ruby.