Pharmacology Flashcards
How does acute intermittent porphyria often present? (2)
Age
Abdominal and neuropsychiatric symptoms
20-40yo
What medication promotes ETOH abstinence?
Contraindications (2)
Disulfram
Ischaemic heart disease, psychosis
What is acamprosate used in? MOA
NMDA antagonist
Used to reduce cravings for ETOH
Allopurinol SE
Dermatological e.g Steven Johnson’s, severe cutaneous adverse reaction etc
Amiodarone SE (8)
Thyroid dysfunction
Corneal deposits
Pulmonary fibrosis
Liver fibrosis
Peripheral neuropathy
Slate grey appearance
Bradycardia
Long QT
Amiodarone effect on warfarin and digoxin
Increases INR and digoxin levels
P450 inhibitors
SICKFACES.COM
Increases levels/ toxicity/ reduces excretion
Sodium valproate/ SSRI
Isoniazid
Cimetidine
Ketoconazole
Fluconazole
Alcohol..binge drinking acute, allopurinol, amiodarone
Chloramphenicol
Erythromycin
Sulfonamides
Ciprofloxacin
Omeprazole
Metronidazole
Grapefruit juice
P450 inducers
CRAP GPS
Increased breakdown, lowers levels in the blood, increases excretion
Carbemazepines, chronic
Rifampicin
Alcohol (chronic)
Phenytoin
Griseofulvin
Phenobarbitone
Sulphonylureas , St John’s wart, smoking
Contraindications to sildenafil (3)
Patients taking nitrates e.g nicorandil
Hypotension
Recent stroke/ MI (wait six months)
Sildenafil SE (6)
Visual disturbances (blue discolouration)
Nasal congestion
Flushing
GI effects
Headache
Priapism
Where does spiro work?
Acts in the cortical collecting ducts
What is amiloride?
Where does it work?
K+ sparing diuretics
Distal convoluted tubule
Name four medications which can exacerbate heart failure
Pioglitazone (SE fluid retention)
Verapamil
NSAIDS/ steroids
Flecainide
Name four drugs to avoid in renal failure
NSAIDs
Lithium
Metformin
Tetracycline/ nitro
Drugs safe in CKD (4)
Abx (2)
Blood thinner (1)
Benzo
Erythromycin
Rifampacin
Diazepam
Warfarin
Name three anti-epileptics that harmful in pregnancy
Sodium valproate
Carbamezapine
Phenytoin
Medications not safe in pregnancy (6)
Warfarin
Statin
Sulfonylureas
Retinoids
ACE inhib
Tetracyclines
Adverse effects quinolones (3)
Tendon damage
Lengthen QT
Lower seizure threshold
Feature of serotonin syndrome (5)
Hyperreflexia
Myoclonus
Rigidity
Hyperthermia
Sweating
SE CCB (3)
Headache
Flushing
Ankle oedema
SE bendroflumethiazide (3)
Gout
Low potassium and sodium
Impaired glucose tolerance
BB SE (3)
Cool peripheries
Impaired glucose tolerance
Bronchospasm
Common SE
Amoxi (1)
Coamox (1)
Fluclo (1)
Rash
Cholestasis
Cholestasis
Common SE
Erythro (2)
Cipro (2)
Metro (1)
GI upset, long QT
Seizure lower threshold, tenodinitis
Reaction with ETOH
Common SE
Doxy (1)
Trimethoprim (2)
Photosensitivity
Rashes, pruritis
SE metformin (2)
GI
Lactic acidosis
Sulfonylureas SE (4)
Hypoglycaemia
Weight gain
SIADH
Liver dysfunction
Glitazones SE (4)
Weight gain
Fluid retention
Liver dysfunction
Fractures
Gliptin SE
Pancreatitis
Lithium range
When to take the level
0.4-1
12 hours post dose
Digoxin when to check the level?
At least 6 hours post dose
Phenytoin when to check the level?
Trough, immediately before next dose
SE TB drugs
Rifampacin (3)
Flu like symptoms
Hepatitis
Red urine