Agents For Diarrhea And Constipation - Dr. Segars Flashcards
4 agents for D
- Prostaglandin Inhibitors
- Opioid Agonists
- Serotonin Antagonist
- Chloride Channel Inhibitors
5 drugs for Constipation
- Laxatives and Cathartic agents
- Peripheral Opioid antagonist
- Guanylate Cyclase - C agonist
- Selective Chloride (C2) Channel activators
- Serotonin type-4 Partial Agonist
PGR inhibitors
1
Bismuth
Opioid agonist
3
- Loperamide
- Diphenoxylate
- Eluxadoline
1 Serotonin antagonist
Alosetron
Cl channel inhibitor
1
Crofelemer
Peripheral opioid antagonist
3
- Methylnaltrexone
- Naloxegol
- Alvimopan
Guanylate Cyclase-C agonist
1
- Linaclotide
Selective Cl (C2) channel activator 1
Lubiprostone
Serotonin Type-4 Partial Agonist
1
Tegaserod
Loperamide
For what
How it works
Anti-diarrhea (DONT GIVE IF INFECTION RELATED**)
Chemically like opioid only not effects like it = can cause overdose causing cardiac toxicity, death
Loperamide MOA + side effects
- Slows down the transit time in peristalsis : action on longitudinal and circular muscles, increase fluid and electrolyte reabsorption, inhibit secretion
- Anticholinergic
Diphenoxylate works how and for what
- = acts like an opioid and effects like it if taking a lot
= small amount of atropine (strong anti-cholinergic) added to limit abuse, + prescription only - Antidiarrheal (not for infections)
Diphenoxylate
MOA
Side effects
Inhibit GI motility and propulsion on SM in GI
Anticholinergic (from atropine)
Eluxadoline MOA and for what
- Agonist at mu + kappa GI opioid receptors (slowing), antagonist at delta opioid R (decrease secretions)**
- IBS- D
Eluxadoline
Side effects
Contraindications
- Hepatic / pancreatic toxicity (increased enzymes)
2. Alcoholism, Hx pancreatitis, no gallbladder*,