Phase II Flashcards
(181 cards)
Antacids
Aluminium & magnesium hydroxide/calcium carbonate
MoA - Gastric acid neutralisation
Indication - Dyspepsia, heartburn
Adverse effects - Nausea
Aluminium & magnesium hydroxide/calcium carbonate
Antacids
MoA - Gastric acid neutralisation
Indication - Dyspepsia, heartburn
Adverse effects - Nausea
What would you prescribe for dyspepsia or heartburn?
Antacids
Aluminium & magnesium hydroxide/calcium carbonate
MoA - Gastric acid neutralisation
Adverse effects - Nausea
Antacids + alginates
Sodium alginate with sodium bicarbonate
MoA - Gastric acid neutralisation
Indication - Gastric reflux
Adverse effects - Abdominal distension
What would you prescribe for gastric reflux?
Antacids + Alginates (sodium alginate with sodium bicarbonate)
or
PPIs (omeprazole, lansoprazole)
H2-receptor antagonists
Ranitidine, Cimetidine
MoA - Blockade of gastric H2 histamine receptors
Indication - Stomach ulcers
Adverse effects - Dizziness
Ranitidine, cimetidine
H2-receptor antagonists
MoA - Blockade of gastric H2 histamine receptors
Indication - Stomach ulcers
Adverse effects - Dizziness
What would you prescribe for stomach ulcers?
H2-receptor antagonists (ranitidine, cimetidine)
or
PPIs (lansoprazole, omeprazole)
PPIs
Omeprazole, Lansoprazole
MoA - Blockade of stomach acid transporters
Indication - Stomach & duodenal ulcers, gastric reflux
Adverse effects - Headache, diarrhoea
Interactions - Warfarin
Pancreatic enzymes
Pancreatin
MoA - Restoration of pancreatic enzymes
Indication - Pancreatic insufficiency - Cystic fibrosis, pancreatitis
What would you prescribe for pancreatic insufficiency (ie. in cystic fibrosis or pancreatitis)?
Pancreatin
Bulk laxatives
Methylcellulose, isphagula husk
MoA - Water absorption in intestinal lumen to bulk stools
Indication - Constipation
Adverse effects/Interactions - Rare
Methylcellulose, isphagula husk
Bulk laxatives
MoA - Water absorption in intestinal lumen to bulk stools
Indication - Constipation
Adverse effects/Interactions - Rare
Faecal softener
Docusate, arachis oil
MoA - Stimulates water and electrolyte secretion into intestinal lumen
Indication - Constipation
Adverse effects/interactions - rare
Docusate, arachis oil
Faecal softener
MoA - Stimulates water and electrolyte secretion into intestinal lumen
Indication - Constipation
Adverse effects/interactions - rare
Osmotic laxatives
Macrogol (PEG), lactulose, magnesium sulphate, magnesium hydroxide
MoA - Water retention in intestinal lumen
Indication - Constipation
Adverse effects - Stomach cramps
Interactions - Antiepileptics
Macrogol (PEG), lactulose, magnesium sulphate, magnesium hydroxide
Osmotic laxatives
MoA - Water retention in intestinal lumen
Indication - Constipation
Adverse effects - Stomach cramps
Interactions - Antiepileptics
Stimulant laxatives
Bisacodyl, Senna
MoA - Increase intestinal motility
Indication - Constipation
Adverse effects - Nausea
Opioid anti-motility agents
Loperamide, codeine
MoA - Agonist for µ-opioid receptors in myenteric plexus. Blocks intestinal muscarinic receptors
Indication - Diarrhoea
Adverse effects/interactions - Rare
Loperamide, codeine
Opioid anti-motility agents
MoA - Agonist for µ-opioid receptors in myenteric plexus. Blocks intestinal muscarinic receptors
Indication - Diarrhoea
Adverse effects/interactions - Rare
Carbonic anhydrase inhibitor
Acetazolamide
MoA - Reduces aqueous humour volume
Indication: Intra-ocular pressure - open & acute closed angle glaucoma
Adverse effects - Paraesthesia
Acetazolamide
Carbonic anhydrase inhibitor
MoA - Reduces aqueous humour volume
Indication: Intra-ocular pressure - open & acute closed angle glaucoma
Adverse effects - Paraesthesia
Osmotic diuretics
Mannitol
MoA - Elevates plasma osmolarity
Indication - Cerebral oedema, intra-ocular pressure
Adverse effects - Hypotension
Mannitol
Osmotic diuretics
MoA - Elevates plasma osmolarity
Indication - Cerebral oedema, intra-ocular pressure
Adverse effects - Hypotension