Basic principles Flashcards
1
Q
What must every prescription have?
A
- Legible
- Unambiguous (not range of doses)
- An approved (generic) name
- In capitals
- Signed
- If drug is “as required” must state the indication and maximum frequency or total dose in 24 hours
- For antibiotics - indication with a stop/review date
- Include duration if the treatment is not long term or if it is in a GP setting (e.g. 28 days)
2
Q
What are common enzyme inducers?
A
PC BRASS
- Phenytoin
- Carbamazepine
- Barbiturates
- Rifampicin
- Alcohol (chronic excess)
- Sulphonylureas
- St John’s wort
3
Q
What are common enzyme inhibitors
A
AO DEVICES
- Allopurinol
- Omeprazole
- Disulfiram
- Erythromycin
- Valproate
- Isoniazid
- Ciprofloxacin
- Ethanol (acute intoxication)
- Sulphonamides
others:
- Metronidazole, chlorampenicol
- Antifungals - ketoconazole
- Amiodarone
4
Q
What drugs should be stopped prior to surgery?
A
I LACK OP
- Insulin
- Lithium
- Anticoagulants/antiplatelets
- COCP/HRT
- K-sparing diuretics
- Oral hypoglycaemics
- Peridopril and other ACEi
5
Q
when should COCP or HRT be stopped prior to surgery?
A
4 weeks
6
Q
What drugs should be stopped the day of surgery?
A
potassium sparing diurectics
ACEi
7
Q
When should lithium be stopped prior to surgery?
A
day before
