Key Points Flashcards
Drugs that cause QT prolongation
‘Long Hearts Make Vampires Always Cry’
- Lithium, Loperamide
- Haloperidol
- Macrolides (azithromycin, clarithromycin)
- Venlafixine
- Amiodarone, Amitriptyline
- Citalopram
Hypokalaemia increase risk
Drugs associated with C.diff
‘Crazy Chimps Buy Flourescent Poo’
- Clindamycin
- Cephalosporins
- Broad-spec penicillin
- Flouroquinolones (Ciprofloxacin)
- PPIs
Smoking interactions
‘TACO’ - Tobacco Can Avoid Overdose
- Theophylline
- Aminophylline
- Clozapine
- Olanzapine
- Ropinirole
Drugs that cause hypokalaemia
‘Don’t Cut Banannas’
- Diuretics
- Corticosteroids
- Beta - 2 agonists
- Macrolides
What is chromaturia?
Harmless red brown colour of the urine caused by medication
Nephrotoxic drugs
- Ciclosporin
- Tacrolimus
- Vancomycin
- Aminoglycosides
Ototoxic drugs
- Aminoglycosides
- Loop diuretics
- Cisplatin
- Vancomycin
- macrolides
Risk factors of QT prolongation
- HypOKalaemia
- HypOMagnesaemia
- Cardiac disease
CP450 inhibitors
’SICKFACES.COM’ - increase drug concentration
Sodium valproate
Isonazid
Cimetidine
Ketoconazole
Fluconazole , Fluoxetine
Alcohol & grapefruit juice
Chloramphenicol
Erythromycin
Sulfonamides , Sertraline
Ciprofloxacin
Omeparazole
Metronidazole Macrolides
Rate limiting CCB
CYP450 inducers
’CRAP GPS’ - decrease drug concentration
Carbemazepines
Rifampicin
Alcohol
Phenytoin
Griseofulvin
Phenobarbitone
Sulphonylureas, St Johns wort
Drugs that cause photosensitivity
- Amiodarone
- Chlorpromazine
- NSAIDs
- Diuretics (furosemide, bendroflumethiazide)
- Tetracycline
- Quinolones
- Sulfonamides (co-trimoxazole)
Pregnancy prevention programme
- 7 day prescription validity, 30 day supply
- Use highly effective contraception
- Fully informed of the risks and signed Risk Acknowledgment Form
- See specialist for annual review
User independent methods: IUD, POP implant, sterilisation
User dependent methods: two forms of contraceptive eg. COC + barrier method + regular pregnancy test
Linezolide
- Cheese reaction
- Serotonin syndrome
- visual disturbances
- blood disorders
- not over 28 days
Warning with tetracycline
Headache - STOP
Two antibiotics with food or after
Metronidazole
Nitrofurantoin
How long is treatment with Rifampicin and isoniazid in continuous phase
4 months
What to consider with TB drugs
Liver
Rifampicin SE
Urine discolouration
Stains contact
Why would malarone be preferred over doxycycline
Doxy causes photosensitivity and most malaria countries are hot and sunny
Prophylaxis for malaria
Anti malaria and warfarin
Stop warfarin 2-3 weeks before and measure INR more frequently
Where to find information
- Aseptics: yellow guide
- Manufacture and distribution: orange guide
- Interactions: Stockleys
- Immunisation against infectious disease + info about vaccinations: green book
- Martindale: reliable reference resource on drugs and medicines throughout the world
- BP: official standards for pharmaceutical substances and medicinal products