Key Terms
- anticholinergic effects
- common effects such as dry mouth, dry eyes, blurred vision, urinary retention, constipation, and cognitive dysfunction resulting from the blockade of cholinergic receptors
- antidiarrheals
- medications used to treat and manage diarrhea
- antiemetics
- medications that prevent or treat nausea and vomiting
- chemoreceptor trigger zone (CTZ)
- an area of neural receptors on the floor of the fourth ventricle of the brain within the dorsal surface of the medulla oblongata that communicates with the vomiting center for emesis
- extrapyramidal symptoms
- dysfunctional involuntary movements such as akathisia (restlessness and/or tapping or jiggling of fingers or legs), dystonia (painful involuntary muscle contractions), Parkinsonism (symptoms similar to Parkinson’s disease such as tremors, difficulty thinking and/or speaking, or stiff facial muscles), and tardive dyskinesia (involuntary facial movements such as eye blinking, sticking out tongue, and/or chewing or sucking motion)
- laxatives
- medications used to treat constipation
- phenothiazines
- a group of medications with antagonistic dopamine used as an antipsychotic or antiemetic
- stool softeners
- medications used to soften stools and ease defecation
- vomiting center
- an area in the central medulla of the brain innervating the vagus nerve and spinal motor neurons in conjunction with the CTZ to cause vomiting