GP Flashcards
(220 cards)
what happens when you take clozapine (antipsychotic) and carbamazepine - BAM ZAP
agranulocytosis
drug causes of gastric ulcers
nsaids
ssri’s
alendronic acid
steroids
order of potency of topical steroids
least
hydrocortisone
betamethasone 0.025%, butyrate (eumovate)
betamethasone 0.1%
propionate (Dermovate)
most
side effects of bisphosphonates
GI and headache reflux and indigestion alopecia anaemia arthraliga/myaglia asthenia (lack of energy) peripheral Aedema atypical fractures - new onset hip pain osteonecrosis of jaw - should maintain good physical hygiene
should you stop statins if suffereing from muscle pain
if ck is 5x upper limit of normal
or if raised but not that much but are severely impacted by the muscle pain
NB it is common to have muscle pain, but uncommon overall for CK to be so high that they have to stop it
dose of statin for primary vs secondary prevention
and when is it used for primary prevention
atorvastatin 20mg for primary
atorvastatin 80mg for secondary
QRISK ≥10% - risk of heart attack or stroke in 10 years
most T1DM
CKD if eGFR <60
increase dose if non-HDL has not reduced by >40%
statins interactions
- CI in pregnancy
- Macrolides (azithromycin etc.) are an important interaction - statins should be stopped until patient has completed the course
which diabetic drugs cause weight gain
sulphylureas - gliclazide
pioglitazone
insulin
which diabetic drugs cause weight loss
GLP-1 agonist - given by weekly injection e.g. exenatide
sglt-2 inhibitors (flozin)
side effects of sulphonulureas (NB are good for rapid glucose correction)
hypoglycaemia weight gain GI side effects SIADH - low sodium peripheral neuropathy
should take in morning to reduce risk of nocturnal hypo
side effects of metformin
lactic acidosis GI effects altered taste anorexia decreased b12 absorption
can switch metformin to modified release if getting bad GI effects (as opposed to immediate release)
The symptoms of lactic acidosis include abdominal or stomach discomfort, decreased appetite, diarrhea, fast, shallow breathing, a general feeling of discomfort, muscle pain or cramping, and unusual sleepiness, tiredness, or weakness
side effects of pioglitazone
weight gain fluid retenion (not good in HF) liver impairement bladder cancer - report dysuria anaemia increase risk of fractures
CI = haematuria
side effects of dpp-4 inhibitors (sitagliptin)
GI upset Headache painful muscles - Myalgia pulmonary - Interstitial lung disease Pancreatitis peripheral oedema
is liscensed in liver and kidney failure
side effects of sglt-2 inhibitors
GI - constipation Euglycemia DKA UTI + thrush risk Increased thirst Dyslipidaemia Ineffective if eGFR<60 Affects genitalia
very cardioprotective
example of long acting insulins
lantus - glargine
levemir - detemir
onset in 30 mins - 1 hour and last for 24 hours
example of short acting insulins
human - actrapid
DMARD side effects examples
methotrexate - pulmonary fibrosis
leflunamide - HTN, peripheral neuropathy
hydroxchlorquirne - nightmares, reduced visual acuity
rituximab - night sweats, low platelets
sulfalazine - male infertiliy
effect of drinking alcohol with warfarin
a binge increases INR so increases chance of bleeding
chronic alcohol use decreases INR
if drinkning - should be occassional and limited amount
should stick to guidelines of 14 units a week - spread over at least 3 days
missed warfarin dose
do not double to make up for a missed dose
what things enhance effect of warfain
wight loss smoking cessation acute illness cranberry juice grapefruit juice alcohol binge
avoid st johns wart, aspirin and ibuprofen due to increased bleeding risk
what things decrease effect of warfarin
diarrhoea
vomiting
green leafy vegetables and green tea
can you take paracetamol on wafarin
o But only take 1 tablet (500mg) at a time
o Do not take more than 4 tablets over a 24 hours period
o Taking more = increases bleeding risk / higher INR
RIPE for tb management
rifampicin
isoniazid
pyrazinamide
ethambutol
NICe recommend treatment in those <65 w evidece of latent tb and been in contact w someone - treat w 6m of isoniazid or 3m of isoniazid and rifampicin
ACTIVE TB
notfiable disease - public health
no CNS involvemtn - then RIPE for 2 months then RI for 4 months
with CNS involvement - RIPE for 2 months, then RI for 10 months
patients with CNS may also have adujavent steroids for first 1-2 months
directly observed therapy to improve adherence in those that would benefit eg alcoholics, homeless
isoniazide is given with pyridoxine to reduce the risk of polyneuropathy
why chose apixaban over rivaroxaban
rivaroxaban has to be taken with food