1. Anti-nausea & Anti-emetics
1.1. 5-HT3 Blockers
1.1.1. Ondansetron
1.1.2. Dolasetron
1.1.3. Granisetron
1.1.4. Palonosetron
1.2. D2 Blockers
1.2.1. Chlorpromazine
1.2.2. Prochlorperazine
1.2.3. Metoclopramide
1.3. NK-1 Blockers
1.3.1. Aprepitant
1.4. H1 Blockers
1.4.1. Benadryl/Dramamine/dimenhydrinate
1.5. Cannabinoids
1.5.1. Nabilone
1.5.2. Dronabinol
1.6. Anticholinergic
1.6.1. Scopolamine
2. IBS drugs
2.1. 5-Aminosalicylates
2.1.1. Sulfasalazine
2.1.2. Olsalazine
2.1.3. Balsalazide
2.2. Metronidazole
3. Antihistamines
3.1. 1st Generation
3.1.1. Diphenhydramine
3.1.2. Chlorpheniramine
3.2. 2nd Generation
3.2.1. Antivert
3.2.2. Phenergan
3.2.3. Atarax
3.3. 3rd Generation
3.3.1. Cetirizine
3.3.2. Loratadine
3.3.3. Levocetirizine
3.3.4. Fexofenadine
4. Drugs for Gastric Acidity
4.1. PPIs
4.1.1. Omeprazole
4.1.2. Esomeprazole
4.1.3. Lansoprazole
4.1.4. Dexlansoprazole
4.1.5. Pantoprazole
4.2. H2 Blockers
4.2.1. Ranitidine
4.2.2. Famotidine
4.2.3. Cimetidine
4.3. Cytoprotectants
4.3.1. Misoprostol (prostoglandin analogue)
4.3.2. Carafate
5. Drugs that affect the bowl
5.1. Drugs that treat constipation
5.1.1. Fiber Laxatives
5.1.1.1. Psyllium
5.1.1.2. Methylcellulose
5.1.1.3. Polycarbophil
5.1.2. Osmotic/Saline Laxatives
5.1.2.1. Sodium phosphate
5.1.2.2. Magnesium sulfate
5.1.2.3. Milk of magnesia
5.1.2.4. Magnesium citrate
5.1.2.5. Non-absorbable polyols
5.1.2.5.1. Lactulose
5.1.2.5.2. Sorbitol
5.1.2.5.3. Mannitol
5.1.2.5.4. Polyethylene glycol
5.1.3. Surfactant Laxatives
5.1.3.1. Docusate sodium
5.1.3.2. Mineral Oil
5.1.4. Stimulant Laxatives
5.1.4.1. Diphenylmethanes
5.1.4.2. Bisacodyl
5.1.4.3. Anthraquinones
5.1.4.3.1. Aloe
5.1.4.3.2. Cascara
5.1.4.3.3. Senna
5.1.4.3.4. Rhubarb
5.1.4.4. Castor Oil
5.1.5. Misc
5.1.5.1. Lubiprostone
5.1.5.2. Sodium Picosulfate
5.1.6. Prokinetic Agents
5.1.6.1. Cholinergics
5.1.6.2. Dopamine antagonists
5.1.6.2.1. Metoclopramide
5.1.6.3. Serotonin agonists
5.1.6.3.1. Metoclopramide
5.1.7. Opioid Antagonist
5.1.7.1. naloxegol
5.2. Drugs to treat diarrhea
5.2.1. Bismuth subsalicylate
5.2.2. Opioids
5.2.2.1. loperamide
5.2.2.2. Diphenoxylate and difenoxin
5.2.2.3. Eluxadoline