DRUGS ACTING ON GIT TRACKS



7.2. Antihistamines that reduce gastric acid secretion

 (a) H2 antihistamines: Cimetidine, Ranitidine,

Roxatidine and famotidine


Omeprazole, Esomeprazole, Lansoprazole, Pantoprazole, S (-) Pantoprazole, and Rabeprazole are proton pump inhibitors.

Pirenzepine and propantheline are anticholinergics.


[c] Misoprostol is a prostaglandin analogue.

neutralizers for stomach acid (Antacids)

(a) Systemic: Sod. citrate and sodium bicarbonate

(b) Nonsystemic: Calcium carbonate, magnesium hydroxide, magnesium trisilicate, aluminium hydroxide gel, and magaldrate

7.4. Ulcer protectives

Sucralfate and Colloidal bismuth subcitrate (CBS)

 7..5. Anti-Helicobacter pylori drugs

An Amoxicillin, Clarithromycin, Metronidazole, Tinidazole, Tetracycline


7.6.antiemetics(anti-vomiting drug}

 An Amoxicillin, Clarithromycin, Metronidazole, Tinidazole, Tetracycline

1. Anticholinergics: Hyoscine, Dicyclomine

7.8. Laxatives(Purgatives, Cathartics)

Bulk forming agents: dietary fibre - Bran, Psyllium (Plantago), Ispaghula, Methylcellulose


Stool softener:  Docusates (DOSS), Liquid paraffin


Stimulant purgatives: Phenolphthalein, Bisacodyl, Sodium picosulfate, Anthraquinones (Emodins), Senna, Cascara sagrada


Fixed oil: Castor oil


Osmotic purgatives: Magnesium sulfate, hydroxide, Sodium sulfate, Lactulose

7.9. Drug to treat acute  and chronic pancreatitis

Aprotinin                          pancreatin

 Octreotid                               



2. H1 antihistaminics: Promethazine, Diphenhydramine,Dimenhydrinate, Doxylamine


3. Neuroleptics: Chlorpromazine, Prochlorperazineand Haloperidol, etc.


4. Prokinetic drugs: Metoclopramide, Domperidone and Cisapride


5. 5-HT3 antagonists: Ondansetron, Granisetron

7.7. Drugs for Gastroesophageal Reflux Disease (GERD)

Inhibitors/neutralizers of gastric acid secretion


1. Proton pump inhibitors (PPIs): Omeprazole,


Pantoprazole and others.


2. H2 blockers: Ranitidine, Famotidine


3. Antacids: Magnesium hydroxide, Aluminium hydroxide


4. Barrier agent - Sodium alginate


5. Prokinetic drugs: (Enhance LES tone and promote gastric emptying)


Cisapride, Mosapride, Metoclopramide


7.8. Laxatives(Purgatives, Cathartics)
Bulk forming agents: dietary fibre - Bran, Psyllium (Plantago), Ispaghula, Methylcellulose

Stool softener:  Docusates (DOSS), Liquid paraffin

Stimulant purgatives: Phenolphthalein, Bisacodyl, Sodium picosulfate, Anthraquinones (Emodins), Senna, Cascara sagrada

Fixed oil: Castor oilrgatives: Magnesium sulfate, hydroxide, Sodium sulfate, Lactulose

7.9. Drug to treat acute  and chronic pancreatitis

Osmotic pu
Aprotinin                                 pancreatin

 Octreotid                               


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