Common Drug Names Flashcards
Ramipril?
ACEi
Iosartan?
Angiotensin Receptor Blocker
Amlodipine?
Calcium Channel Blocker
Simvastatin?
Calcium Channel Blocker
Verapamil?
Phenylalkylamine
Bisoprolol?
Beta blocker/Beta-adrenoceptor antagonist
Diltiazem?
Benzothiazapine
Bendroflumethiazide?
Thiazide diuretic
Indapamide?
Thiazide diuretic
Doxazosin?
Alpha-adrenoceptor antagonist
Amiloride?
K+ sparing diuretic, acts on DCT
Labetalol?
Reduces sympathetic outflow
Can be given during pregnancy
Spironolactone?
Mineralocorticoid/aldosterone receptor antagonist
What is Hyoscine hydrobromide often used for?
Antiemetic, useful for motion sickness as acts on the vestibular nuclei in the inner ear.
What is ondansetron?
5HT3/serotonin receptor antagonist, used as an antiemetic
Metacloperamide, domperidone?
D2 receptor antagonists/antiemetic
What are cyclizine and promethazine used for? What is their drug classification?
Antiemetics - H1 receptor antagonists
Side effects of hyoscine hydrobromide?
It is a mAChr antagonist, therefore blocks parasympathetic action, side effects: dry mouth and constipation, memory problems, sedation, glaucoma.
Why is hyoscine hydrobromide useful for people who can’t take tablets?
It comes in patch form.
What are the side effects of the antiemetic ondansetron?
Constipation, headache, elevated liver enzymes, long QT syndrome, extra-pyramidal effects
What is ileus?
When the gut is paralysed and normal peristalsis is lost, often occurs after bowel surgery.
Name a drug that would be useful to treat ileus.
A D2 receptor antagonist e.g. Metacloperamide
What is the MOA of D2 antagonists metacloperamide and domperidone?
Increases gut motility - by increasing tone at oesophageal sphincter and stomach, and decreasing tone at pyloric sphincter.
What drug classification is halperidol? Why is it usefu for chemotherapy and palliative care?
D2 receptor antagonist acting on CTZ.
Because it is slightly sedative so can relax patients.
Name some side effects of cannabinoids such as nabilone?
Dizziness and drowsiness.
What is the MOA of neurokinin 1 antagonists?
Prevents action of substance P at neurokinin 1 receptors.
In any of the common gut problems e.g. GORD, IBD, obstruction, what is your set antiemetic treatment?
Ondansetron and/or cyclizine
Then add dexamethasone
What is hyperemesis gravidarum?
Severe case of morning sickness where patients also have dehydration, weight loss, electrolyte imbalance or urinary ketones.
What cause hyperemesis gravidarum?
Rapid rise in beta hcg. Therefore it’s worse in multiple pregnancies.
What is the set antiemetic treatment for hyperemesis gravidarum?
Promethazine or prochlorperazine.
Then add metacloperamide.
Then add ondansetron.
What is the set treatment of antiemetics given for chemotherapy?
Dexamethasone (and ondansetron if severe)
For rescue, metacloperamide.
What is the set antiemetic treatment for post-operative nausea and vomiting?
Pick 1, 2 or more antiemetics (any) depending on severity
What are loperamide, codeine and morphine used for? What drug class are they?
Antidiarrhoeals, opiod receptor agonists.
As well as being pain relievers, what can morphine and codeine help treat?
Antidiarrhoeals.
What is paralytic ileus? Name a drug that could cause this.
Constipation due to gut contents being slowed down too much.
Could be caused by antidiarrhoeals such as loperamide, codeine or morphine.
What is the difference between MOA for lactulose and macrogols? (Both osmotic laxatives).
Lactulose osmotically draws fluid into the gut.
Macrogols e.g. Movicol keeps original fluid in the gut.
What is the MOA of stimulant laxatives?
Increase intestinal motility, helping to reduce constipation.
What is the MOA of Proton pump inhibitors (PPIs)?
Irreversibly inactivate the H+K+ATPase/proton pump in parietal cells in the stomach.
What type of drugs are omeprazole and lansoprazole?
Proton pump inhibitors.
How do alginates e.g. Gaviscon work?
Form a viscous layer over exposed mucosa (e.g. Due to an ulcer), so that acid can’t get in.
Why do PPIs take a few days to become effective?
Can only inhibit proton pumps when they’re in the active state, therefore have to wait for all the pumps to become active.
Is PPI action reversible or irreversible?
Irreversible - once treatment is stopped, takes a few days for acid secretion to return to normal as you need to re-synthesise pumps.