- Since the histamines cannot bind to the receptors, the blood vessels start to constrict.
- As the blood vessels get smaller, blood flow slows down, thus slowing the spread of histamines throughout the body.
- 2.68 mg
- glaucoma
- enlarged prostate
- severe heart failure
- obstructions of the urinary tract
- obstruction of the GI tract
- sedation
- coma
- seizures
- inability to urinate
- dry mouth and eyes
- hyperactivity
- rapid heartbeat
- low blood pressure
- fever
- slow breathing
- hives
- pale gums
- seizures
- shock