PHARMACOLOGY MADE EASY 4.0
GASTROINTESTINAL SYSTEM LEARNING
WORKBOOK 2026 GI MEDICATIONS AND
THERAPEUTIC USES
◉ Antidiarrheals.
Answer: Medications used to reduce diarrhea.
◉ Digestive System Functions.
Answer: Performs the mechanical and chemical process of digestion,
absorbs nutrients, and eliminates waste
◉ Digestive System Structures.
Answer: Mouth, esophagus, stomach, intestines, and accessory
structures
◉ Protective Factors of Digestive Tract.
Answer: The digestive tract must work without being destroyed by
the strong acid it makes to digest food
◉ Digestion Variables.
, Answer: Changes in gastrointestinal blood flow, amount of surface
available, and motility are found in very young and older adult
patients
◉ Antiemetic Drugs.
Answer: Work in the brain, stomach, and intestinal tract to change
the sensation of nausea and to reduce the stomach contractions that
make vomiting occur
◉ Serotonin (5-HT3) Receptor Antagonists.
Answer: Reduce or halt nausea and vomiting by blocking (5-HT3)
receptors in the intestinal tract and the CTZ
◉ Expected Side Effects of Serotonin (5-HT3) Receptor Antagonists.
Answer: Dizziness, headache, drowsiness
◉ Adverse Side Effects of Serotonin (5-HT3) Receptor Antagonists.
Answer: Allergic reactions, dysrhythmias, renal or liver damage,
serotonin syndrome
◉ Drug Interactions of Serotonin (5-HT3) Receptor Antagonists.
Answer: Monoamine oxidase inhibitors, morphine, and serotonin
reuptake inhibitors
GASTROINTESTINAL SYSTEM LEARNING
WORKBOOK 2026 GI MEDICATIONS AND
THERAPEUTIC USES
◉ Antidiarrheals.
Answer: Medications used to reduce diarrhea.
◉ Digestive System Functions.
Answer: Performs the mechanical and chemical process of digestion,
absorbs nutrients, and eliminates waste
◉ Digestive System Structures.
Answer: Mouth, esophagus, stomach, intestines, and accessory
structures
◉ Protective Factors of Digestive Tract.
Answer: The digestive tract must work without being destroyed by
the strong acid it makes to digest food
◉ Digestion Variables.
, Answer: Changes in gastrointestinal blood flow, amount of surface
available, and motility are found in very young and older adult
patients
◉ Antiemetic Drugs.
Answer: Work in the brain, stomach, and intestinal tract to change
the sensation of nausea and to reduce the stomach contractions that
make vomiting occur
◉ Serotonin (5-HT3) Receptor Antagonists.
Answer: Reduce or halt nausea and vomiting by blocking (5-HT3)
receptors in the intestinal tract and the CTZ
◉ Expected Side Effects of Serotonin (5-HT3) Receptor Antagonists.
Answer: Dizziness, headache, drowsiness
◉ Adverse Side Effects of Serotonin (5-HT3) Receptor Antagonists.
Answer: Allergic reactions, dysrhythmias, renal or liver damage,
serotonin syndrome
◉ Drug Interactions of Serotonin (5-HT3) Receptor Antagonists.
Answer: Monoamine oxidase inhibitors, morphine, and serotonin
reuptake inhibitors
