Part 1: Medication Knowledge and Counselling Flashcards
(138 cards)
Norfloxacin
CLASS: quinolone antibiotic
INDICATIONS:
- resistant UTIs and prostatitis
- travellers diarrhoea
DOSE: dependent on indication. Usually 400-800mg. Reduce dose if CrCl is less than 30ml/min.
COUNSELLING:
- take on an empty stomach for best absorption (label 3b)
- avoid sunlight (label 8).
- May experience dizziness/fainting (label 12).
- Label 4
- Label D
MONITORING:
- watch for tendon damage.
- Can lower seizure threshold
Esomeparazole
CLASS: Proton Pump Inhibitor
INDICATIONS: reduce stomach acid, GORD, treatment of stomach ulcers, prevention of peptic ulcer bleeding.
DOSE: 20-40mg once daily (twice daily for some indications).
COUNSELLING:
- swallow whole
- Can disperse in water then drink after 30 mins.
- S/E: flatulence, Nausea and Vomiting, diarrhoea/constipation
MONITORING: Long term use associated with:
- enteric infections (eg C diff)
- decreased B12
- risk of fractures/osteoporosis (monitor vit D and Ca)
- increased risk of pneumonia.
Metformin
CLASS: Biguanide
INDICATIONS: T2DM, polycystic ovary syndrome.
DOSE: 500 - 2000mg daily - tds (max 3 g daily). CR product once daily only. Reduce in renal impairment. COUNSELLING:
- Take with food to reduce stomach upset.
- Tell your doctor immediately if you have loss of appetite, n and v, abdo pain, cramps, fatigue, diarrhoea or weight loss.
- Label 10a
- Alcohol can increase risk of side effects. Avoid binge drinking and have something to eat while drinking.
- AEs: N and V, malabsorption of vit B12. diarrhoea.
- Can take 2 weeks for BSLs to stabilise.
MONITORING:
- signs of lactic acidosis
- renal function
- HbA1c
Beta Blockers
INDICATIONS: Hypertension, Angina, Tachyarrhythmias, MI, Heart Failure, Prevention of Migraine.
COUNSELLING:
- May cause dizziness or tiredness, especially at start of treatment.
- Do not stop taking this medicine suddenly unless doctor tells you to (abrupt withdrawal can exacerbate angina, precipitate rebound hypertension, MI or arrhythmias)
MONITORING:
- blood pressure
- heart rate
- Kidney function (may need to reduce dose in poor renal function).
Beta Blocker doses
Atenolol: 25 - 50mg once daily. Max 100mg daily.
Bisoprolol: 1.25 - 10mg daily
Carvedilol: 3.125- 50mg BD
Metoprolol:
- HTN: 50 - 100mg BD
- Angina: 25 -100mg BD - TDS
- HF: 23.75mg CR to 190mg daily.
Propanolol: 10mg TDS - 320mg daily
Nebivolol: 1.25 - 10mg daily depending on indication.
Labetalol: 100-400mg BD (max 2.4g in a day)
Pindolol: increase to maintenance of 10-30mg daily in 2 or 3 doses.
Oxprenolol: 20 - 320mg daily
Moxifloxacin
CLASS: Quinolone Antibiotic
INDICATIONS: Community Acquired Pneumonia, multi drug resistant TB, exacerbations of chronic bronchitis, other infections.
DOSE: 400mg once daily.
COUNSELLING:
- Side effects: dizziness, taste disturbances, GI effects
- Label 4a - Avoid cation agents within two hours (eg. antacids, iron, zinc supplements etc). But NOT dairy products.
- Labels 12, D
MONITORING:
- Prolonged QT interval
- Tendon damage
Ciprofloxacin
CLASS: Quinolone antibiotic
INDICATIONS: Complicated UTIs/ pyelonephritis / prostatitis, Enteral infections, bone/joint infections, other infections.
DOSE: 250- 500mg BD. Maximum of 1.5g daily.
COUNSELLING:
- Label 8 (photosensitivity).
- Take on empty stomach (label 3b)
- Avoid dairy products, iron, zinc, calcium etc. within 2 hours (label 4).
- Can increase the effects of caffeine in some people.
- Labels 12, D
MONITORING:
- reduced seizure threshold
- QT prolongation (rare). more common with moxifloxacin.
Simvastatin
CLASS: Statin (HMA-CoA reductase inhibitor)
INDICATIONS: Hypercholesterolaemia, high risk of coronary heart disease.
DOSE: 10-40mg once daily. Can use a max of 80mg however significantly increases risk of myopathy.
COUNSELLING:
- Label 18
- Take at night
- Tell your doctor if the whites of your eyes become yellow, faeces pale, have dark urine or pain in muscles that aren’t exercise related.
- Side effects: transient GI symptoms, sleep disturbances, headache, gynaecomastia, myalgia, myopathy, rhabdomylosis
MONITORING:
- renal function
- drug interactions (CYP) -
- rhabdomylosis.
- Aminotransferase concentrations
Alendronate
CLASS: Bisphosphonate
INDACTIONS: Prevention and treatment of osteoporosis. Paget’s disease of bone.
DOSE: 5 - 10mg daily (however 5mg tabs not available) OR 70mg weekly.
COUNSELLING:
- Take in the morning with a full glass of plain water at least 30 mins before food and drink. Remain upright during this time and until after you eat. (Label C)
- Swallow whole (do not chew or suck the table)
- Do not take antacids, calicum, iron or metal supplements within 30 minutes of alendronate as they may interfere with its absorption. (Label 4).
- Stop tablets and see your doctor immediately if you have pain on swallowing, or new or worsening heartburn.
- There are rare complications with some dental procedures in people taking bisphosphonates (osteonecrosis of jaw). Tell your doctor if you require any dental work and tell your dentist that you are taking this medicine.
- Tell your doctor if you have severe pain in your bones, joints or muscles while taking this medicine.
MONITORING:
- Calcium and vit D levels
- Incidence of fracture
- Oesophageal state
- Full dental assessment
- ?efficacy after 5 years in post-menopausal women
Gliclazide
CLASS: Sulfonylurea
INDICATIONS: Type 2 diabets
DOSE: usually 40-320mg daily in 1 or 2 doses (up to 160mg as a single dose).
CR product 30mg to max of 120mg daily.
Note: 30mg of CR = 80mg IR tablet.
COUNSELLING:
- swallow whole CR product.
- Take with food to minimise risk of low blood glucose (hypoglycaemia). (Label B).
- intermediate risk. (Risk increases with advanced age, renal or hepatic impairement + drug interactions.)
- Drinking alcohol decreases your blood glucose and can mask symptoms of hypoglycaemia. Avoid binge drinking and have something to eat when drinking.
- Side effects: hypoglycaemia, weight gain, nausea, metallic taste (infrequent).
MONITORING:
- blood glucose levels
- urine ketones
Celecoxib
CLASS: COX-2 selective inhibitor (NSAID).
INDICATIONS: osteoarthritis, rheumatoid arthritis, pain.
DOSE: note risk of cardiovascular adverse effects is dose-related –> do not use > 200mg daily long term.
Use dose 200mg once or twice daily. Max 5 days treatment for pain.
COUNSELLING:
- do not use if dehydrated (eg vomiting or diarrhoea) as it can increase he likelihood of side effects.
- do not take with aspirin for pain relief as it will increase the risk of side effects.
- Can have serious GI effects
- If taking low dose aspirin for another condition, do not stop taking the aspirin.
- Labels 10a, 12, 19b
MONITORING:
- renal function
- therapeutic effect - eg. pain levels
- liver function.
- signs of bleeding with the use of blood thinners.
- GI discomfort
- Cardiovascular function.
Allopurinol
CLASS: Xanthine oxidase inhibitor (reduces production of uric acid).
INDICATIONS:
- Chronic symptomatic hyperuricaemia (eg. gout)
- Hyperuricaemia secondary to disease (eg. tumour lysis syndrome from chemotherapy).
DOSE: 300-600mg daily (max 900mg).
COUNSELLING:
- Take with food to reduce stomach upset.
- Label 12 (when starting or increasing dose).
- You may notice an increase in flares in the first few months of treatment however these flares will gradually improve and eventually stop as the body reduces the amount of urate in your body.
- Look for signs of hypersensitivity reaction in the first few months (rash, swollen mouth, persistent fever or sore throat).
- AEs: flare of acute gout, raised liver enzymes, oedema, rash.
MONITORING:
- renal and liver function at baseline and repeated regularly throughout treatment.
- Measure serum urate every 6 months for maintenance.
Citalopram
CLASS: SSRI
INDICATIONS: major depression, anxiety.
DOSE: 20mg once daily gradually increasing over 2-4 weeks if necessary to max of 40mg daily.
COUNSELLING:
- take in the morning (can cause insomnia).
- It can take 2-4 weeks for the medicine to take effect, you may feel worse during this time before you start to feel better while your body is adjusting.
- Do not stop taking this medicine suddenly as it can precipitate withdrawal effects. (label 9)
- Label 12 - may affect mental alertness.
- SEs: sexual dysfunction, insomnia, sweating, rhinitis, tremor.
MONITORING:
- therapeutic effect - eg. mood.
- signs of serotonin toxicity.
- prolonged QT interval
Venlafaxine
CLASS: SNRI INDICATIONS: Major depression, generalised anxiety disorder, panic disorder, social phobia. DOSE: 75mg once daily, increase to 150mg once daily if required. Max 225mg daily. Reduce dose if Crcl
Mirtazapine
CLASS: Antidepressant which has post-synaptic blockade of serotonin receptors and pre-synaptic blockade of alpha2 inhibitory autoreceptors. Blocks H1 receptors (sedative effects).
INDICATIONS: Major depression.
DOSE: 15mg nocte, increases gradually to 30-45mg as needed. Max 60mg.
COUNSELLING:
- sedation (label 1)
- increased appetite/ weight gain.
- peripheral oedema
- do not stop taking this medicine suddenly as it can precipitate withdrawal effects. (Label 9)
- Increased suicidal thoughts and behaviour can occur soon after starting the medication (can take a few weeks to be effective and stabilise).
MONITORING:
- changes in mood when starting (suicidal tendencies).
- seizures –> can reduce seizure threshold in those affected. Dose dependent risk.
- Therapeutic effect.
Spironolactone
CLASS: Aldosterone antagonist (inhibits Na+ absorption in the distal tubule and increases Na+ and water exretion while reducing K+ excretion).
INDICATIONS:
- primary hyperaldosteronism
- refractory oedema associated with secondary hyperaldosteronism.
- hirtuism in females (anti-androgenic effects)
- heart failure.
DOSE:
- Oedema: Maintenance 25-200mg daily (Max of 400mg daily in ascites).
- Heart failure: 25mg - 50mg once daily.
COUNSELLING:
- Labels 12, 16, 11.
- Take with food.
- SEs: Hypochloraemia, Headache, Nausea, Mastalgia, GI cramps, Impotence, Menstrual irregularities, Gynaecomastia, Alopecia.
MONITORING:
- Potassium levels (hyperkalaemia)
- Renal function
- BP
- hepatic function
- serum electrolytes
Digoxin
CLASS: Antiarrythmic
INDICATIONS: AF and Atrial Flutter, heart failure.
DOSE: Tailor according to renal function, clinical response and concentration monitoring. Loading dose can be used to achieve a more rapid control, usually 250-500 microg every 4-6hrs according to response (max 1.5mg).
Maintenance - 125-250microg once daily (max 500microg).
COUNSELLING:
- Tell your doctor or pharmacist you are taking this medicine before taking any other medicines (including OTC). (Label 5).
- Side effects: dizziness, visual disturbances (eg. blurred vision), drowsiness, arrhythmia, Nausea and vomiting, diarrhoea.
MONITORING:
- TDM levels to guide dose adjustment and to confirm toxicity.
- Renal and electrolyte function
- heart rate and rhythm (ECG)
- Digoxin toxicity (GI symptoms, then cardiac symptoms eg arrhythmias)
Latanoprost eye drops
CLASS: Prostaglandin analogue (reduce intraocular pressure by increasing uveoscleral outlfow of aqueous humour).
INDICATIONS: glaucoma, ocular hypertension.
DOSE: 1 drop once daily, preferably at night. COUNSELLING:
- SEs: bitter taste, periorbital rash, eye irritation, blurred vision.
- Instil in the evening for optimal effect.
- can slowly change (over months to years) the colour of your eye making the iris appear darker. The change is permanent and may be more noticeable if used in only one eye.
- Can cause gradual darkening, lengthening and thickening of eyelashes –> reversible when treatment stopped.
MONITORING:
- ocular pressure (paradoxical increase can occur if using 2 ocular prostaglandin analogues).
Amitriptyline
CLASS: Tricyclic Antidepressent (TCA)
INDICATIONS: Major depression, adjuvant in pain management, migraine prophylaxis, urinary urge incontinence.
DOSE: Depression- 25 -300mg daily (usually nocte)
COUNSELLING:
- Take at night to reduce day time drowsiness. (label 1)
- May cause dizziness. (label 16)
- Label 12
- Do not suddenly stop taking this medication as it can cause withdrawal effects. (Label 9)
- SEs: blurred vision, dry mouth, drowsiness, constipation, orthostatic hypotension. May lessen or disappear after 7 days.
- May cause anticholinergic delirium in the elderly.
MONITORING:
- prolonged QT interval
- Monitor BP for orthostatic hypotension.
- Monitor for increased suicidal thoughts in initial use.
Aspirin
CLASS: Anti-platelet/ NSAID
INDICATIONS: Acute coronary syndrome, symptomatic atherosclerosis, relief of pain/inflammation/fever.
DOSE:
- Antiplatelet effect - 75-150mg once daily.
- Pain effect - 300-900mg every 4-6 hours prn.
COUNSELLING:
- Labels 9, 13, 19b (high doses), A*, B
- Take with food to reduce stomach upset & prevent ulcers.
- Look for signs of bleeding: swollen ankles, difficulty breathing, black stools or vomit that looks like coffee grounds.
- Remove tablets from packaging just before use as it can break down rapidly if it isn’t protected by packaging.
- Tell your doctor and dentist you are on this medication.
- Speak to your pharmacist or doctor before using any antiflammatories for pain relief.
MONITORING:
- monitor for GI bleeding, renal failure or hepatic dysfunction.
- Watch for bronchospasm in those with asthma and worsening of rhinitis in those affected.
Cephalexin
CLASS: cephalosporin (moderate spectrum)
INDICATIONS: Staphylococcal and streptococcal infections in people with mild penicillin allergy , UTIs, Epididymo-orchitis.
DOSE: 250-500mg QID (max 4g daily). UTI prophylaxis - 250mg daily
COUNSELLING:
- Complete the entire course even if you are feeling better. (Label D)
- If you develop swelling of the face, lips or tongue, itching of the skin or difficulty breathing, seek medical attention immediately .
- SEs: Diarrhoea, Nausea, Vomiting, Rash, Headache, Dizziness, C.diff/superinfection (long duration), Neurotoxicity (seizures, confusion, encephalopathy), - rarely: cholestatic hepatitis
MONITORING:
- signs of allergic reaction.
- therapeutic effect - ie improvement in symptoms.
- Superinfection eg. thrush
Tamsulosin
CLASS: Selective alpha blocker (block alpha1 receptors relaxing smooth muscle in the bladder neck and prostate decreasing resistance to urinary flow).
INDICATIONS: Benign Prostate Hyperplasia (BPH), (also can be given in combination with dutasteride for BPH).
DOSE: 400microg once daily.
COUNSELLING:
- do not crush or chew.
- May cause dizziness or drowsiness. - SEs: abnormal ejactulation, first dose hypotension, orthostatic hypotension (BP effects less frequent with tamsulosin than other alpha blockers).
- Tell your opthalmologist you are taking or have taken this medicine if you are going to have cataract surgery.
MONITORING:
- symptomatic effect.
- prostate size.
- Blood pressure
Isotretinoin
CLASS: Retinoid
INDICATIONS: cystic acne/ severe acne
DOSE: Initially up to 0.5mg/kg each day as a single dose or in 2 doses. Can be increased to 1mg/kg after 4 weeks according to response. Continue treatment for 4-6months until total cumulative dose is 120-150mg/kg to prevent condition relapse.
COUNSELLING:
- do not donate blood during treatment and for 8 weeks after stopping.
- Females need to use adequate contraception before during and for 1 month after treatment as birth defects can occur.
- Acne flare may occur during the first few weeks of treatment.
MONITORING:
- Monitor liver function tests and lipids at baseline then after first month of treatment.
- monitor for psychological symptoms as there is evidence between isotretinoin and psychiatric disorders.
Lercandipine
CLASS: di-hydropyridine (Calcium Channel Blocker)
INDICATIONS: hypertension (sometimes in fixed dose combinations with enalapril).
DOSE: 10 - 20mg daily.
COUNSELLING:
- Best absorbed if taken 15 MINUTES before a meal.
- look for signs of peripheral oedema (common in dihydropyridines).
- SEs: dizziness, headache, nausea, hypotension.
- Labels 12 (during initiation and dose increase), 9, 18, C
MONITORING: blood pressure