Kelly takes an antihistamine for allergies. Explain why sleepiness is a side effect of this medicine
What will be an ideal response?
Antihistamines are drugs that block histamine receptors outside the nervous system to alleviate allergy symptoms. However, most drugs also block histamine receptors within the CNS as well. Since histamine plays a role in arousal and attention, blocking its action often leads to the side effect of drowsiness.
You might also like to view...
The bones of the shoulder and pelvic girdles are part of the axial skeleton.
Answer the following statement true (T) or false (F)
Pyramids are
a) gray matter protrusions found on the medulla oblongata. b) white matter protrusions found on the medulla oblongata. c) gray matter protrusions found on the pons. d) white matter protrusions found on the pons. e) a network of white and gray matter found in the medulla oblongata.
The rate of product formation by an enzyme-catalyzed reaction would be increased by
A) adding more substrate molecules. B) adding more product molecules. C) reducing the number of substrate molecules. D) reducing the number of enzymes.
Having to adjust to a dark room after walking in from bright light is because:
A) rhodopsin does not function in dim light. B) rods exposed to bright light need time to regenerate rhodopsin. C) the lens requires time to accommodate dim light. D) only cones function in dim light.