Big Pharma Flashcards
Give a common SE of amlodipine
Ankle oedema
How may macrolides affect an ECG?
Lengthening of the QT interval
What complication may be prevented by the co-prescription of pyridoxine in TB?
The risk of peripheral neuropathy with isoniazid can be reduced by prescribing pyridoxine
What do we use sildenafil for in neonates?
Pulmonary hypertension
Which electrolyte abnormality may predispose you to digoxin toxicity?
Hypokalaemia
How do we treat beta blocker overdose?
IV atropine
What is pioglitazone, and where is it contraindicated?
Pioglitazone is a thiazolidinedione, which works by increasing insulin sensitivity in peripheral tissues and decreasing hepatic gluconeogenesis. However, it can cause fluid retention and exacerbate heart failure, making it unsuitable for patients with pre-existing heart failure.
What is gentamicin?
aminoglycoside
What are the main SEs of rifampicin?
It can cause various side effects including hepatotoxicity (liver damage), orange discolouration of body fluids, flu-like syndrome and thrombocytopenia among others.
What are the main SEs of pyrazinamide?
Its main adverse effect is hepatotoxicity which may present as jaundice or elevated liver enzymes in blood tests.
What are the main SEs of ethambutol?
primarily affects the eyes causing optic neuritis which may lead to decreased visual acuity or red-green colour blindness but it does not cause peripheral neuropathy.
Give a common SE of ciprofloxacin
Tendinopathy
A 40-year-old man presents after taking an overdose of amitriptyline. His ECG on arrival shows widening of the QRS complex. Treatment?
IV Bicarbonate
What is pyridoxine?
a form of vitamin B6 which is prescribed alongside isoniazid to reduce the risk of peripheral neuropathy
Which drugs should we avoid in AKI?
D - Diuretics
A - ACE inhibitor, ARBs
M - Metformin
N - NSAIDs
How does lithium toxicity present?
Diarrhoea, vomiting, abdominal pain, coarse tremor, weakness, seizures, muscle twitches and blurred vision are among the signs and symptoms of lithium toxicity
Why do we hold metformin in AKI?
Risk of lactic acidosis
What is the main SE of amiodarone that we need to inform pts of?
Pulmonary fibrosis
What is the earliest symptom of aspirin overdose
Tinnitus
Give a urinary SE of amitryptiline?
Retention
When is cranberry juice contraindicated?
Cranberry juice does not interact with lithium. However, it increases the risk of rhabdomyolysis when taken with statins due to its inhibitory effect on cytochrome P450.
Which painkiller can precipitate lithium toxicity?
NSAIDs
Tx for a farmer is admitted with suspected organophosphate insecticide poisoning
Causes bradycardia - atropine
Tx for a pt with iron overdose
Desferrioxamine
Tx for a pt with antifreeze overdose
Fomepizole
Give the main SE of Mg replacement
Diarrhoea is the major dose-limiting side effect of magnesium salts
A 62-year-old man is admitted following a beta-blocker overdose. He remains bradycardic despite being given atropine. Tx?
Glucagon
What are tetracyclines used for, and what is a common SE?
Tetracyclines are a group of broad-spectrum antibiotics that are known to cause photosensitivity reactions, which can result in a skin rash. This happens because tetracyclines can increase the skin’s sensitivity to sunlight and ultraviolet light. Photosensitivity reactions are considered as one of the common side effects of tetracyclines.