Medications Flashcards
What does warfarin target?
Vitamin k dependent clotting factors 2, 7, 9, 10, protein s and protein c
What is the initial effect of warfarin?
Hypercoagulation
What does desmopressin do?
Releases factor VII bound to endothelial cells resulting in a temporary boost to factor VII levels
Why is desmopressin only effective every few weeks?
Factor VII needs to build up in the endothelial wall
How does transaeximic acid work?
Inhibits fibrinolysis
Decreases bleeding by stopping clot breakdown
What is the maximum dose of paracetamol?
0.5-1g every 4-6 weeks
Max 4g per day
What is the maximum dose of ibuprofen?
400mg tablet 4x per day
Max 2.4g per day
What is the maximum dose of aspirin?
300mg tablet (x2) 4x a day
Max 4g per day
What is the maximum dose of dihydrocodeine?
30mg every 4-6 hours
What is the maximum dose of carbamazepine?
200mg 3-4 times a day
Up to 1.6g
What is the maximum dose of diclofenac?
15ml rinse 2-3x day for 7 days
What medications can be used to treat NUG/NUP?
Metronidazole
6% H2O2
0.2% chlorhexidine mouthwash
When is chlorhexidine used?
Post surgery
Disabled patients
Immunocompromised
RCT irritant
What are the side effects of chlorhexidine?
Decreased GI absorption
Staining
Taste disturbance
What are the side effects of chemotherapy?
Hair loss
Fatigue
Nausea
Weakness
What are the side effects of radiotherapy?
ORN
Mucositis
Burns
Radiation caries
What is apixaban?
Direct Oral Anticoagulant
What is apixaban used for?
Deep Vein Thrombosis
Pulmonary Embolism
Stroke
Non-vascular atrial fibrillation
How long does warfarin take to work?
48-72 hours
What its the mode of action of dabigatran?
Reversible inhibitor of free thrombin, fibrin bound thrombin and thrombin-induced platelet aggregation
What is the mode of action of apixaban, edoxaban and rivaroxiban?
Factor Xa inhibitors
Prevent thrombin generation and thrombus development
What is simvastatin?
HMG CoA reductase inhibitors used to treat hypercholesteroemia
What is furosemide?
Loop diuretic
What is furosemide used for?
Controls hypertension
What is a risk with furosemide?
Risk of exacerbating diabetes
What is carvedilol?
Beta blocker
What is carvedilol used for?
Hypertension management
What is the effect of metformin?
Anti-hyperglycaemic effect
What is a side effect of metformin?
Can reduce vitamin B12 levels: leads to vitamin B12 deficiency anaemia
What is the mode of action of dapagliflozin?
Reversibly inhibits sodium-glucose co-transporter 2 (SGLT2) in the renal proximal convoluted tubule to reduce glucose reabsorption and increase urinary excretion
What is the mode of action of sulfonulurea?
Augments insulin secretion
Only effective when there is residual pancreatic beta-cell activity
What is the triple therapy option for diabetes?
Metformin
Dapagliflozin
Sulfonulurea
When is miconazole contraindicated?
Warfarin
Statins
What are the original tricyclic antidepressants?
Amitriptyline
Nortriptyline
Dosulepin
What are the new tricyclic antidepressants?
Imipramine
Doxepin
What are the side effects of tricyclic antidepressants?
Dry mouth
Sedation
Weight gain
What are the cautions with tricyclic antidepressants?
Glaucoma
Prostatism
What are examples of selective serotine reuptake inhibitors?
Fluoxetine
Paroxetine
Fluoroxamine
Cetalopram
Setraline
What are the side effects of selective serotine reuptake inhibitors?
Acute anxiety
TCA symptoms
Gastrointestinal upset
What are examples of monoamine oxidase inhibitors?
Phenelzine
Isocaboxazid
Selegeline
What interactions can monoamine oxidase reuptake inhibitors have with indirect acting sympathomimetic amines?
Enhanced vasoconstrictor effect
Cough and cold remedies
Which foodstuffs can monoamine oxidase reuptake inhibitors interact with?
Tyramine containing
Alcohol
Bovril/oxo/marmite/cheese
What is venlafaxine?
Mixed SRI/NRI
What is mirtazapine?
Complex 5HT actions
Presynaptic alpha2 antagonist
What is nefazadone
SSRI
5HT blockade
What is reboxetine?
SNRI
What drugs are used to treat bipolar disorder?
Lithium (mood stabiliser)
Carbamazepine/Lamotrigine/Valproate (mood stabiliser)
Antipsychotic medicines- aririprazole, olanzapine, quetiapine, risperidone (mania treatment)
What should be avoided when taking lithium?
NSAIDs
Metronidazole
What are the dental effects of antidepressants?
Xerostomia
Caries
Sedation
Facial dyskinesias (twitching)
What are examples of anti-psychotic drugs?
Butryrophenones
Phenothiazines
Thioxanthenes
New atypical antipsychotics
What are examples of butryophenones?
Haloperidol
Droperidol
What are examples of phenothiazines?
Chlorpromazine
Thioridazine
What are examples of thioxanthenes?
Flupenthixol
Zuclopenthixol
What are examples of new atypical antipsychotics?
Sulphide
Respiridone
Clozapine
Quetiapire
What are the extrapyramidal side effects of antipsychotics?
Akathisia (feeling of restlessness)
Dystonia (involuntary muscle contraction)
Parkinsonism (tremor, slowed thought/movement, rigid muscle)
Tardive dyskinesia (uncontrolled facial movement)
What are examples of anticholinergics?
Procyclidine
Benzotropine
Diphenhydramine
Pramipexole
Which medications cause gingival hyperplasia?
Calcium channel blockers
Phenytoin
Cyclosporin
What is adalimumab?
Anti TNF mAb
What is ustekinumab?
Anti IL21/23
What is vedolizumab?
Anti-a4b7
What are GLP-1s?
Glucagon-like peptide
Mimics incretin (increases insulin sensitivity and decreases glucose)
What do DDP-4 inhibitors do?
Inhibit DDP-4 which inactivates incretin
What do therapeutic steroids do?
Increase salt and water retention
Increase BP
Immunosuppression
What is the factor for prednisolone?
4:1
What is the factor for becamethasone?
30:1
What is the factor for dexamethasone?
25:1
What is the factor for hydrocortisone?
1:1
What do calcium channel blockers do?
Block calcium channels to reduce muscle excitability
Used to treat hypertension
May cause gingival hyperplasia
What do nifedipine and amlodipine do?
Relaxation and vasodilation of peripheral blood vessels
What does verapamil do?
Slows conduction of passing impulses in heart
What is the triple therapy for CF?
2 correctors and one potentiator
Iracaftor, Tezacaftor and elaxacaftor
What is the role of aspirin?
Antiplatelet drug
Inhibits platelet aggregation by altering the balance between thromboxane A2 and cyclin
What is the role of heparin?
Anti-thrombin
Activates anti-thrombin III to prevent fibrin plug formation
What is frusemide?
Loop diuretic
What is bendroflumethiazide?
Thiazide diuretic
What do nitrates do?
Dilate veins
What are examples of nitrates?
Glycerol Trinitraide
Isosorbide mononitrate
What is the triple therapy for h.pylori
2 antibiotics (amoxycillin and metronidazole)
Proton pump inhibitor (omeprazole)