INFECTION Flashcards
Methotrexate, clari+ery?
Safe
BUT AMOXI L!
nitrofurantoin risk?
pulmonary fibrosis
METHOTREXATE+AMOXICILLIN?
TOXICITY!!!!
RECURRENT VAGINAL THRUSH DOSE?
moetronidazole
150MG every third day for 3 doses+150mg ONCE weekly for 6 months
DISULFIRAM, DRINK ALCOHOL?>
FULL BODY RASH!
SET INTERACTION?
SILDENAFIL
ERYTHROMYCIN
TADALAFIL
isotretinoin+vitamin A, cod liver?
avoid in pregnant!
septicaemia?
tazobacta+piperacillin
osteomyelitis treatment?
fluclo (6 weeks)
w/
fusidic acid/rifampicin (2 weeks)
TRI UTI DOSE?
Adult
200 mg twice daily for 3 days (7 days in males).
UPPER UTI?
Oral first line (upper UTI symptoms):
Cefalexin, ciprofloxacin, co-amoxiclav (if culture susceptible), or trimethoprim (if
CURB65 SCORE?
CONFUSIONt
UREA NITROGEN>7mmol/L
RAISED RESP. RATE>/= 30breaths/min
low bp systolic <90, dyastolic /=65 years
CURB65 SCORE?
CONFUSIONt
UREA NITROGEN>7mmol/L
RAISED RESP. RATE>/= 30breaths/min
low bp systolic <90, dyastolic /=65 years
CRB SCORES?
• low severity - CRB65 score 0 or CURB65 score 0 or 1 • moderate severity - CRB65 score 1 or 2 or CURB65 score 2 • high severity - CRB65 score 3 or 4 or CURB65 score 3 to 5
ABX WITHOUT FOOD?
FAT PA- flucloxacillin, ampicillin, tetracycline/oxytetracycline, phenoxy, azithromycin capsules - 1 hour before food or two hours after food
ABX WITHOUT FOOD?
FAT PA?
d
NITROFURANTOIN
Egfr less than?
45, don’t use
- A 29-year old patient prescribed isoniazid as part of a tuberculosis treatment regimen
LIVER TOXICITY!
- A 42-year old woman who has been prescribed Yasmin® who smokes two packets of cigarettes a day
thrombosis
- A 51-year-old patient who has bone metastases and has been prescribed 4 mg zoledronic acid as treatment.
HYPOCALCAEMIA, electrolyte disturbacen
but treats
tumour induced hypercalcaemia
- A 67-year-old patient who has recently upped her lansoprazole to 30 mg twice daily.
hyponatraemia
- A 82 year old man who presents to hospital with jaundice. His liver function tests show raised bilirubin and alkaline phosphatase.
CO-AMOX, HEPATIC IMPAIRMENT
- A 68 year old woman with newly diagnosed pulmonary fibrosis
G ( Nitrofurantoin, SPC: Chronic pulmonary reactions (including pulmonary fibrosis and diffuse interstitial pneumonitis) can develop insidiously, and may occur commonly in elderly patients. Close monitoring of the pulmonary conditions of patients receiving long-term therapy is warranted (especially in the elderly).
ABX WITHOUT FOOD? EMPTY STOMACH?
AMPICILLIN
CO-FLUAMPICIL
FLUCLOXACILLIN
PHENOXYMETHYLPENICILLIN
ABX WITH FOOD?
PIVMECILLINAM
ALWAYS SENSE CHECK ANSWERS, DOES IT MAKE SENSE? RATIONALISE AND ELIMINATE EACH OPTION, READ THE Q AGAIN
TIP:
IF A QUESTION HAS AN ANTI-EPILEPTIC, IDENTIFY THE INTERACTION- MACROLIDES/QUINOLONES,NSAIDs, etc
SEVERE CELLULITIS?
CO-AMOXICLAV
CLINDAMYCIN
IV CEFUROXIME
IV CEFTRIAXONE
CELLULITIS MANAGEMENT?
penicillin allergy?
near eyes or nose?
alternative?
FLUCLOXACILLIN
penicillin allergy? DOXYCYLINE/CLARITHROMYCIN/ERYTHROMYCIN
near eyes or nose? CO-AMOXICLAV
alternative? CLARITHROMYCIN W/ METRONIDAZOLE
Hydrocortisone+quinolones?
Higher risk of tendonitis, okay
WHAT TB MEDICATION CAUSES POOR EYE VISION?
ETHAMBUTOL, not isoniazid
ISONIAZID is peripheral neropathy- body nerves are damaged
MALOFF- ATOVAQUONE w/ PROGUANIL?
Max 12 weeks P med
SIDE-EFFECTS OF INSULIN?
WEIGHT GAIN
OEDEMA
LIPODYSTROPHY- body storing fat,
SKIN REACTIONS
NOT WEIGHT LOSS
(hypertrophy- lump of fat tissue under skin, repeated injection)
Cellulitis?
Flucloxacillin
Doxy/Clari/Ery
Co-amoxiclav (children, not pen allergy)
HUMAN/ANIMAL BITES- TREATMENT
1st LINE?
2nd LINE?
PROPHYLAXIS/TREATMENT?
1st LINE? CO-AMOXICLAV
2nd LINE? DOXYCYCLINE AND METRONIDAZOLE
PROPHYLAXIS/TREATMENT DAYS? 3/5 DAYS
Treatment when there’s presenting symptoms*
CELLULITIS- TREATMENT
INFECTION NEAR EYES/NOSE
1st LINE?
PENICILLIN ALLERGY?
1st LINE? Co-amoxiclav
PENICILLIN ALLERGY? Clarithromycin & Metronidazole
AMINOGLYCOSIDES DO NOT CAUSE C DIFF
SORE THROAT TREATMENT
1st line?
2nd line?
SORE THROAT TREATMENT
1st line? Phenoxymethylpenicillin
2nd line? Clarithromycin or Erythromycin (in pregnancy)
A Cefalexin B Ciprofloxacin C Clarithromycin D Co-amoxiclav E Vancomycin
normal
flucloxacillin
doxycycline/clarithromycin/erythromycin
severe
co-amoxiclav/clindamycin | iv cefuroxime/ceftriaxone
MRSA- add iv vancomycin/teicoplanin/linezolid
SO ANSWER CEFTRIAXONE?
TRIMETHOPRIM CAN ALSO CAUSE…?
BLOOD DYSCRASIA, HEAD TOP!
not hepatoxic silly
FLUCLOXACILLIN IS CAUTIONED IN..?
HEPATIC IMPAIRMENT!
DOXYCYCLINCE CAN BE?
HEPATOTOXIC, don’t forget that
can get DYSPHASIA AS WELL
WHAT DO WE NOT GIVE IN OTITIS MEDIA?
DOXYCYCLINE, don’t be fooled
Trimethoprim in pregnancy? Teratogenic, avoid completely!
meningitis order?
benzylpenicillin
cefotaxime/ceftriaxone (penicillin allergy)
chloramphenicol (immediate penicillin allergy)
NEPHROTOXIC DRUGS? DAMN-LAG
DIURETICS ACE ARB METFORMIN NSAIDS LITHIUM AMINOGLYCOSIDES GENTAMICIN
Clotrimazole spray?
Large hairy area
CANESTEN IN PREGNANCY?
With topical use:
Minimal absorption from skin; not known to be harmful.
With vaginal use:
Pregnant women need a longer duration of treatment, usually about 7 days, to clear the infection. Oral antifungal treatment should be avoided during pregnancy.
HYOSCINE BUTYLBROMIDE?
GASTRO, SICKNESS, BUSCOPAN
QT PROLONGATION DRUGS?
THE AMAZING SPIDERMAN Q
TCA amiodarone SSRIS anti antipsychotics malaria quinine/quinolone
INFECTIVE COPD?
For adults aged 18 years and over, the first-choice antibiotic for the management of an
infective exacerbation of COPD are amoxicillin, doxycycline or clarithromycin.
Doxycycline is prescribed at a dose of 200 mg on first day, then 100 mg once a day for
5‑day course in total.
OR
CO-AMOXICLAV
LEVOFLOXACIN
CO-TRIMOXAZOLE
MENINGITIS?
BENZYL
CEFOTAXIME (calm with minor penicillin alllergy)
CHLORAMPHENICOL
Signs of meningitis. 1st line is benzylpenicillin but unsuitable due to penicillin allergy.
Cefotaxime can be used as no history of immediate anaphylactic reaction to penicillins.
SESPSIS?
B - bloods cultures U - urinary output F - IV fluids adm A - antibiotics broad spec IV L - lactate levels O - O2 if hypoxia
YELLOW-GREEN DISHARGE?
TRICHO
VAGINAL DISCHARGE GUIDE
One week after his hospital admission, the patient develops diarrhoea. A stool sample confirms
the presence of Clostridium difficile infection. Doctors decide to stop the lansoprazole and review
the antibiotic for his infection.
Which ONE of this patient͛s medications listed below is MOST likely to require temporary
discontinuation in view of his Clostridium difficile infection?
IBUPROFEN NSAID, he’s sick!!
CLARI, ATYPICAL PATHOGENS!
Penicillin V PHENOXYMETHYLPENICLLIN?
empty stomach
space doses evenly
A 4–year-old girl, presents with sore throat, low-grade fever and tender lesions in the mouth and papulovesicular lesions of the distal limbs
HAND
FOOT
MOUTH DISEASE
WAT THIS?
hives
batches of red/skin-coloured welts? itching, painful swelling?
A 73-year-old man with a history of allergy to penicillin (anaphylaxis) and
azithromycin (anaphylaxis), who is feeling unwell. His respiratory rate is 19
breaths/minute and his blood pressure is 121/82. He has a history of cough for
1 week.. Single choice.
DOXYCYCLINE
daktarin sugar free minimum age?
4 months+
A 26-year-old woman has contact dermatitis on her wrist. The maximum
number of times per day that hydrocortisone cream should be used is
twice
antibiotic-associated colitis
loperamide capsules
DD
cutanoues
lipohyper…
Clindamycin also used in cellulitis btw, but severe? Hm
WARFARIN-RIVAROXABAN, when INR?
<1.5, no need monitoring, safe
DOXYCYCLINE
HEADACHE VISUAL BENIGN REPORT
H PYLORI
MALARIA PROPHYLAXIS
vegan deficiency,?
b12?
METRO+OMEP H PYLORI?
USE 400MG TDS, OTHERWISE 400MG BD
AMOX+OMEP H PYLORI?
USE 500MG BD, otherwise 1000MG BD AS PER
IMPORTANCE OF STEWARDSHIP?
Prevents antibiotic resistance
Less unnecessary treatment, more caution
Higher risk of resistance w/ broad-spectrum antibiotics
ANTIMICROBIAL- NICE GUIDANCE
DO NOT START WITHOUT CLINICAL EVIDENCE
OBTAIN CULTURES-:
NARROWING OF BROAD SPECTRUM
CHANGE THERAPY TO EFFECTIVELY TREAT RESISTANT PATHOGENS
STOP ABs when CULTURES SUGGEST INFECTION IS UNLIKELY
AVOID BROAD-SPECTRUM ANTIBIOTICS, e.g. (risk
co-amoxiclav
quinolones (cipro, levo)
cephalosporins (cefaclor, ceftriaxone)
AVOID WIDESPREAD USE OF TOPICAL ANTIBIOTICS (e.g. fusidic acid is systemic, use that!)
HUMAN/ANIMAL BITES- TREATMENT
1st LINE?
2nd LINE?
PROPHYLAXIS/TREATMENT?
1st LINE? CO-AMOXICLAV
2nd LINE? DOXYCYCLINE AND METRONIDAZOLE
PROPHYLAXIS/TREATMENT DAYS? 3/5 DAYS
Treatment when there’s presenting symptoms*
TICK BITES (LYME DISEASE)- TREATMENT
1st LINE?
2nd LINE?
No. of days?
1st LINE? Doxycycline 100mg BD
2nd LINE? Amoxicillin 1000mg TDS
No. of days? 21 days
DIABETIC FOOT INFECTION- TREATMENT
MILD (<2cm)
1st LINE?
If penicillin allergy..?
1st LINE? Flucloxacillin
If penicillin allergy..? Clarithromycin/Erythromycin/Doxycycline
DIABETIC FOOT INFECTION- TREATMENT
MODERATE/SEVERE (abscess, osteomyelitis)
1st LINE?
2nd LINE?
1st LINE? FLUCLOXACILLIN or CO-AMOXICLAV with/without GENTAMICIN
2nd LINE? (Penicillin allergy) CO-TRIMOXAZOLE with/without GENTAMICIN
CELLULITIS- TREATMENT
FIRST LINE?
PENICILLIN ALLERGY?
FIRST LINE? Flucloxacillin
PENICILLIN ALLERGY?
Clarithromycin OR
Erythromycin (in pregnancy)
Doxycycline
CELLULITIS- TREATMENT
INFECTION NEAR EYES/NOSE
1st LINE?
PENICILLIN ALLERGY?
1st LINE? Co-amoxiclav
PENICILLIN ALLERGY? Clarithromycin & Metronidazole
COMMUNITY ACQUIRED PNEUMONIA-
THREE TYPES?
LOW SEVERITY
MODERATE SEVERITY
HIGH SEVERITY
COMMUNITY ACQUIRED PNEUMONIA
LOW SEVERITY TREATMENT
1st LINE?
2nd LINE?
1st LINE? Amoxicillin
2nd LINE? Doxycycline OR Clarithromycin OR Erythromycin (in pregnancy)
COMMUNITY ACQUIRED PNEUMONIA
MODERATE SEVERITY TREATMENT
1st LINE?
2nd LINE?
1st LINE? Amoxicillin w/ Clarithromycin OR Erythromycin in pregnancy
2nd LINE? Doxycycline OR Clarithromycin
COMMUNITY ACQUIRED PNEUMONIA
HIGH SEVERITY TREATMENT
1st LINE?
2nd LINE?
1st LINE? Co-amoxiclav w/ Clarithromycin (OR Erythromycin in pregnancy)
2nd LINE? Levofloxacin
DIARRHOEA TREATMENT
CLOSTRIDIUM DIFFICILE
1st LINE?
2nd LINE?
LIFE-THREATENING?
No. of days?
1st LINE? ORAL! Vancomycin
2nd LINE? Fidaxomicin
LIFE-THREATENING? Oral Vancomycin+IV metronidazole
No. of days? 10 days
DIARRHOEA
TRAVELLER’S DIARRHOEA
STANDBY?
PROPHYLAXIS/TREATMENT?
STANDBY? Azithromycin
PROPHYLAXIS/TREATMENT? Bismuth Subsalicylate
EAR INFECTIONS
OTITIS MEDIA (inner, need systemic)
1st LINE?
2nd LINE? (worsened symptoms after 2-3 days treatment)
Penicillin allergy?
Can resolve itself if it’s not bad!
so standard paracetamol, ibu, first initially, 3days-1week
1st LINE? Amoxicillin
2nd LINE? Co-amoxiclav
Penicillin allergy? Clarithromycin (Erythromycin in pregnancy)
EAR INFECTIONS
OTITIS EXTERNA
1st LINE?
2nd LINE?
SYSTEMIC TREATMENT NEEDED?
Pseudomonas?
1st LINE? Topical Acetic Acid 2%
2nd LINE? Topical Neomycin Sulphate w/ Corticosteroid
SYSTEMIC TREATMENT NEEDED? Flucloxacillin (clari/azy/ery back up)
Pseudomonas? Cipro/aminogly
Note: prolonged use of topical, can affect flora in canal, risk of fungal infection
HELICOBACTER PYLORI
TRIPLE THERAPY?
PPI?
+
2 of the following..?
PPI? Omeprazole, Lansoprazole, etc (30mg BD) \+ 2 of the following..? Amoxicillin 1000mg BD OR Metronidazole 400mg BD OR Clarithromycin 500mg BD
tetracycline also used, blah blah, 7 days
HOSPITAL ACQUIRED PNEUMONIA
Non-severe
1st LINE?
2nd LINE? (adults) DC^2L
2nd LINE? (children)
1st LINE? Co-amoxiclav
2nd LINE? (adults) Doxycycline OR Cefalexin OR Co-trimoxazole OR Levofloxacin
2nd LINE? (children)
Clarithromycin
Why do we avoid doxycycline in children<12?
Deposition in growing bone & teeth
Binding to calcium
Causes staining
Dental hypoplasia
IMPETIGO TREATMENT
LOCALISED NON-BULLOUS
1st LINE?
2nd LINE?
1st LINE? Hydrogen Peroxide 1%
2nd LINE? Fusidic Acid (Mupirocin 2% if fusidic acid resistance suspected)
IMPETIGO TREATMENT
WIDESPREAD NON-BULLOUS
1st LINE?
1st LINE? Fusidic Acid (Mupirocin 2% if fusidic acid resistance suspected)
IMPETIGO TREATMENT
BULLOUS/SYSTEMICALLY UNWELL
1st LINE?
2nd LINE?
1st LINE? Flucloxacillin
2nd LINE? Clarithromycin (OR Erythromycin in pregnancy)
LOWER UTI TREATMENT
MEN
1st LINE?
Nitrofurantoin (eGFR>45) OR Trimethoprim
LOWER UTI TREATMENT
NON-PREGNANT WOMEN
1st LINE?
2nd LINE?
1st LINE? Nitrofurantoin OR
Trimethoprim (low risk of resistance)
2nd LINE? Pivmecillinam OR Fosfomycin
LOWER UTI TREATMENT
PREGNANT WOMEN
1st LINE?
2nd LINE?
1st LINE? Nitrofurantoin (avoid at term)
2nd LINE? Cefalexin OR Amoxicillin
Nitrofurantoin should only be used if eGFR is…?
> /= 45mL/min
LOWER UTI TREATMENT- No. of days
MEN?
PREGNANCY?
UNCOMPLICATED?
CATHETER-ASSOCIATED?
MEN? 7 days treatment
PREGNANCY? 7 days treatment
UNCOMPLICATED? 3 days treatment
CATHETER-ASSOCIATED? 7 days treatment
STREP THROAT/SCARLETT FEVER
BACTERIA?
Streptococcus
STREP THROAT/SCARLETT FEVER
1st LINE?
2nd LINE?
1st LINE? Phenoxymethylpenicillin
2nd LINE? Clarithromycin OR Erythromycin (in pregnancy)
SCARLETT FEVER
1st LINE?
2nd LINE?
1st LINE? Phenoxymethylpenicillin–> Amoxicillin
2nd LINE? Azithromycin–> true penicillin allergy
SYMPTOMS OF SCARLETT FEVER?
Flu-like- high temp, swollen neck glands
Red rash w/ small, raised bumps, rough feeling like sandpaper
White coating on tongue- strawberry like
TREATMENT
ACNE VULGARIS?
ADAPALENE/CLINDAMYCIN/BENZOYL PEROXIDE/LYMECYCLINE
TREATMENT
BACTERIAL VAGINOSIS/TRICHOMONIASIS? (anaerobic)
METRONIDAZOLE
TREATMENT
CHLAMYDIA?
1g STAT azithromycin- uncomplicated chlamydia
DOXYCLCINE
TREATMENT
CONJUNCTIVITIS/BLEPHARITIS?
CHLORAMPHENICOL
Chloramphenicol OTC sale?
0.5% eye drops (10mL) OR
1% eye ointment (4g)
2 years+
Max. treatment 5 days
TREATMENT
DENTAL ABSCESS?
AMOXICILLIN
OR
METRONIDAZOLE
TREATMENT
GONORRHOEA
CEFTRIAXONE/CIPROFLOXACIN
IM gent+azi if allergy
TREATMENT
MENINGITIS?
BENZYLPENICILLIN
TREATMENT
SCABIES?
PREMETHRIN-
apply over whole body including face, neck, scalp & ears
TREATMENT
SINUSITIS?
PHENOXYMETHYLPENICILLIN
Very unwell? Co-amoxiclav
(pen allergy? Doxycycline/Clarithromycin/Ery in pregnancy
TREATMENT
THREADWORM?
OTC sale?
MEBENDAZOLE
2 YEARS+
MAX. SINGLE DOSE 100mg
MAX. PACK SIZE 800mg
PATHOGENS
CAP/MENINGITIS?
UTI?
THRUSH?
CELLULITIS?
CAP/MENINGITIS? Streptococcus Pneumoniae
UTI? Eschericia Coli
THRUSH? Candida Albicans
CELLULITIS? Staphylococcus Aureus
ANTIBIOTICS
AMINOGLYOSIDES- EXAMPLES?
Amikacin Gentamicin Neomycin Streptomycin Tobramycin
AMINLOGLCYCOSIDES
Concs measured in all patients receiving parenteral aminoglycosides.
Must be determined in…?
Obesity
High doses
Cystic fibrosis
Elderly
AMINOGLYCOSIDES
When do you measure serum-gent conc?
After 3/4 doses
Every 3 days
After a dose change (common in renally impaired)
Aminoglycosides
Peak?
Trough?
Peak? 1hr after dose
Trough? Just before next dose
AMINOGLYCOSIDES- MULTIPLE DAILY DOSE REGIMEN TARGETS
PEAK?
ENDOCARDITIS?
TROUGH
MULTIPLE DAILY DOSE REGIMEN
PEAK? 5-10mg/L
ENDOCARDITIS? 3-5mg/L (co-prescribed w/ other ABxs)
TROUGH
<2
<1 endo
AMINOGLYCOSIDES- DOSE ADJUSTMENTS
TROUGH TOO HIGH?
PEAK TOO HIGH?
TROUGH TOO HIGH? Increase dose interval
PEAK TOO HIGH? Decrease dose
AMINOGLYCOSIDES- DOSE ADJUSTMENT
RENAL IMPAIRMENT?
SEVERE RENAL IMPAIRMENT?
RENAL IMPAIRMENT? Increase dose interval
SEVERE RENAL IMPAIRMENT? Reduce dose
Aminoglycosides, avoid concomitant use of…?
Nephrotoxic drugs
AMINOGLYCOSIDES- MHRA WARNING
Drugs that cause ototoxicity? CLVV
Interactions w/ Ototoxicity? Cisplatin Loop Diuretics Vancomycin Vinca Alkaloids (vinblastine, vincristine, vindesine, vinflunine)
AMINOGLYCOSIDES- MHRWA WARNING
Drugs that cause renal impairment?
NEPHROTOXIC RISK?
NSAIDs
ACEi
ARBs
Metformin
NEPHROTOXIC RISK? Loop/NSAIDs/
AMINOGLYCOSIDES
CONTRAINDICATED IN..?
PREGNANCY?
OBESITY?
CONTRAINDICATED IN..? Myasthenia Gravis (chronic, autoimmune disease of muscles)
PREGNANCY? AVOID: risk of auditory/vestibular nerve damage (Vertigo)
Have to use? Just monitor
OBESITY? Use IBW to calculate dose
CEPHALOSPORINS
1ST GENERATION? Fad, Fal, Frad
CeFadroxil
CeFalexin
CeFradine
CEPHALOSPORINS
2ND GENERATION? Furry Fox Face
CeFuroxime
CeFoxitin
CeFaclor
CEPHALOSPORINS
3rd & 5th GENERATION?
All parenteral except from oral Cefixime (3rd)
Patients with hypersensitivity to penicillin should not receive a cephlaosporin due to…?
Cross-sensitivity
CHLORAMPHENICOL
USE?
AVOID IN?
OTC AGE?
USE? Eye infections
AVOID IN? Pregnancy- grey-baby syndrome, if used in third trimester
OTC AGE? 2years+
CLINDAMYCIN
Associated with…?
Antibiotic-associated colitis (inflammation of lining of colon- FATAL?
Common in elderly
Discontinue+contact a doctor ASAP if severe/prolonged/bloody diarrhoea develops
CLINDAMYCIN
Clostridium difficile suspected?
STOP!
Can’t stop ABx/severe diarrhoea? Seek specialist advice
GLYCOPEPTIDES- EXAMPLES? VDT^2
VANCOMYCIN
DALBAVANCIN
TEICOPLANIN (can be used in COMMUNITY ACQUIRED PNEUMONIA!
TELAVANCIN
GLYCOPEPTIDES
WHICH DRUG MUST BE GIVEN PARENTERALLY FOR SYSTEMIC INFECTIONS DUE TO REDUCED ABSORPTION W/ ORAL INTAKE..?
AVOID IN..?
TROUGH CONC.?
WHICH DRUG MUST BE GIVEN PARENTERALLY FOR SYSTEMIC INFECTIONS DUE TO REDUCED ABSORPTION W/ ORAL INTAKE..? Vancomycin
AVOID IN..? Pregnancy
TROUGH CONC.? 15-20mg/L (for endo/worse?) 10-20 usually?
GLYCOPEPTIDES
Vancomycin oral, monitor?
Conc. in inflammatory intestinal disorders
GLYCOPEPTIDES- SIDE-EFFECTS?
NO CRABS
NEPHROTOXICITY
OTOTOXICITY
CARDIOGENIC SHOCK ON RAPID IV
RED MAN SYNDROME
ANAPHYLACTOID REACTIONS- avoid rapid infusion+rotate site
BLOOD DYSCRASIAS: agranulocytosis/eosinophilia/neutropenia
SEVERE CUTANEOUS ADVERSE REACTIONS- SJS syndrome?
LINEZOLID- SAFETY INFORMATION
RISK OF SEVERE OPTIC NEUROPATHY?
Report visual impairment (blurry/altered vision)
Monitor regularly if treatment >28 days
LINEZOLID- SAFETY INFORMATION
RISK OF BLOOD DISORDERS?
Monitor full blood counts weekly
Close monitoring if treatment>10-14 days/renal impairment
A REVERSIBLE MAOI BTW, FUN FACT!
LINEZOLID- INTERACTIONS
TYRAMINE-RICH FOODS?
SEROTONIN SYNDROME?
TYRAMINE-RICH FOODS? mature cheese marmite salami yeast extract fermented soya bean extract some beers/wines
SEROTONIN SYNDROME? (altered cognitive state) SSRIs Dopaminergics 5-HT1 agonists TCAs Lithium Other MAOIs
MACROLIDES- EXAMPLES?
A
C
E
AZITHROMYCIN (OD)
CLARITHROMYCIN (BD)
ERYTHROMYCIN (QDS)
MACROLIDES
AZITHROMYCIN TDS 1/52 for..?
Prophylaxis in COPD patients
MACROLIDES
CAUTIONED IN..?
Patients w/ myasthenia gravis
Pregnancy? Erythromycin>Clarithromycin
Avoid Clarithromycin in 1st trimester of pregnancy (teratogenicity)
MACROLIDES- SIDE-EFFECTS?
HOG-QT
HEPATOXICITY
OTOTOXICITY
GI DISTURBANCES
QT PROLONGATION
MACROLIDES- INTERACTIONS
Macrolides are CYB ENZYME INHIBITORS (so will increase levels of CYP enzyme substrates)
STATINS?
WARFARINS?
Macrolides are CYB ENZYME INHIBITORS (so will increase levels of CYP enzyme substrates)
STATINS? Increased risk of myopathy
WARFARINS? Increased risk of bleeding
MACROLIDES- INTERACTIONS
HYPOKALAEMIA?
LOOP/THIAZIDE DIURETICS
STEROIDS
SALBUTAMOL
THEOPHYLLINE
abcde i
MACROLIDES- INTERACTIONS
QT PROLONGATION?
AMIODARONE DOMPERIDONE FLUCONAZOLE LITHIUM METHADONE ONDANSETRON QUININE QUINOLONES SOTALOL SSRIs
METRONIDZOLE- SIDE-EFFECTS
TNVDA
TASTE DISTURBANCE- metallic taste, furred tongue
N&V- take w/ OR after food
MUST NOT DRINK ALCOHOL- disulfiram like side-effect (N&V, flushing)
-AVOID ALCOHOL during & >/=48hrs after treatment
NITROFURANTOIN
PREGNANCY?
RENAL IMPAIRMENT?
URINE DISCOLOURED?
TAKE?
PREGNANCY? avoid at term?
RENAL IMPAIRMENT? Avoid if eGFR<45mL/min/1.73m^2
URINE DISCOLOURED? Yellow/Brown
TAKE? W/ OR after food
PENICILLINS
NARROW-SPECTRUM (beta-lactamase sensitive, broken down by beta-lactamases, useless in these infections causing):
PENICILLIN G? Benzylpenicillin
Gastric acid stable?
PENICILLIN V? Phenoxymethylpenicillin
Gastric acid stable?
PENICILLIN G? Benzylpenicillin
Gastric acid stable? Parenteral use only
PENICILLIN V? Phenoxymethylpenicillin
Gastric acid stable? Suitable for oral administration
PENICILLINS- BROAD-SPECTRUM (beta-lactamase sensitive):
EXAMPLES?
Ampicillin
Amoxicillin
PENICILLINS- BROAD-SPECTRUM
Beta-lactamase resistant combo?
Amoxicillin+Clavulanic Acid (Co-amoxiclav)
BROAD-SPECTRUM PENICILLINS
SIDE-EFFECTS?
DIARRHOEA- antibiotic-associated colitis
MACULOPAPULAR rash- most common in patients w/ glandular fever; DO NOT USE BROAD-SPEC BLINDLY FOR ‘SORE THROAT’
Do you DD
PENICILLINASE-RESISTANT PENICILLIN
EXAMPLE?
Flucloxacillin
PENICILLINASE-RESISTANT PENICILLIN
FLUCLOXACILLIN
Take on empty stomach..?
Safety information?
Cautioned in?
Take on empty stomach..? 1hr before food/2hrs after
Safety information? Cholestatic jaundice+hepatitis can occur, up to 2 months after treatment has ben stopped. Risk factors: >2 weeks use+elderly
Cautioned in? Hepatic impairment
ANTIPSEUDOMONAL PENICILLINS?
Piperacillin- only available in combo w/ beta-lactamase inhibitor Tazobactam
Ticarcillin- only available in combo w/ beta-lactamase Clavulanic Acid
PENICILLINS- SIDE-EFFECTS
INTRAHETCAL?
CROSS-SENSITIVITY?
PENICILLIN ALLERGY?
INTRAHETCAL?
Do not give INTRATHECALLY- can cause encephalopathy (same with Vincristine sulfate/vinca alkaloids!)
VINCRISTINES- NEUROTOXICITY!
CROSS-SENSITIVITY?
Cross-sensitivity: DO NOT GIVE CEPHALOSPORINS in history of immediate penicillin hypersensitivity
PENICILLIN ALLERGY?
True allergy-> immediate rash, anaphylaxis
Maybe not? minor rash, small, not itchy/confluent >72hrs after
QUINOLONES- EXAMPLES?
CIPROFLOXACIN DELAFLOXACIN LEVOFLOXACIN MOXIFLOXACIN OFLOXACIN
QUINOLONES- SIDE-EFFECTS
MAY CAUSE?
Advice?
MAY CAUSE?
LOWERS SEIZURE THRESHOLD- avoid in epilepsy (+tramadol, sertraline, ibuprofen)
PSYCHIATRIC DISORDERS
TENDON DISORDERS
PHOTOSENSITIVITY
HYPERSENSITIVITY DISORDERS
Advice? Reduce sunlight+UV radiation exposure+can impair driving ability
QUINOLONES- IMPORTANT SAFETY INFORMATION?
TENDINITIS- common in >60years, STOP!
AORTIC ANEURYSM+DISSECTION- seek help asap if sudden-onset severe abdominal/chest/back pain
HEART VALVE REGURGITATION- seek help asap if SOB/peripheral neuropathy/new heart palpitations
FLUOROQUINOLONES ARE VERY VERY BAD
QUINOLONES- CAUTIONS?
MAP-QT
MYASTHENIA GRAVIS
ARTROPATHY (arthritis joint disease, yutes/adults)
PERFORATED TYMPANIC MEMBRANCE (when used by ear)
QT INTERVAL PROLONGATION
QUINOLONES- INTERACTIONS
FOOD & DRINKS?
DRUGS THAT CAUSE..?
FOOD & DRINKS? AVOID dairy/mineral-foritifed drinks- reduces absorption
DRUGS THAT CAUSE..?
QT prolongation (amiodarone, SSRIs, haloperidol, chlorpromazine)
Reduce seizure threshold (quinolones+NSAIDs)
TETRACYCLINES- EXAMPLES?
DOXYCYCLINE
TETRACYCLINE
MINOCYCLINE
TETRACYCLINES
LABEL?
LABEL exception? DLM
LABEL? Do not take w/ milk, indigestion remedies, or medicines containing iron/zinc, 2hrs before/after you take this medicine
LABEL exception? DLM- DOES LIKE MILK
Doxycycline
Lymecycline
Minocycline
TETRACYCLINES- SIDE-EFFECTS?
TEETH DISCOLOURATION/BONE DEPOSIT- avoid in >12 years/pregnant women
BENIGN INTRACRANIAL HYPERTENSION- stop & report headache/visual disturbances
LUPUS-ERYTHMEATOSUS-LIKE SYNDROM+IRREVERISBLE PIGMENTATION- highest risk w/ minocycline
TETRACYCLINES- COUNSELLING POINTS
HEPATOXIC- avoid in liver failure
PHOTOSENSITIVITY- avoid exposure to sunlight/lamps
DYSPHAGIA- swallow whole with plenty of fluid, sitting/standing
CAUTION IN MYASTHENIA GRAVIS
TRIMETHOPRIM- SIDE-EFFECTS?
BLOOD DYSCRASIA- long-term; look out for signs of blood disorders
fever, sore throat, rash, mouth ulcers, bruising or bleeding
ANTIFOLATE- teratogenic risk in first trimester, avoid
interactions w/ other antifolates:: methotrexate/phenytoin
HYPERKALAEMIA- ACEi, ARB, digoxin, K+ sparing/aldosterone
CAUTION IN RENAL IMPAIRMENT!
ANTIBIOTICS- NARROW vs BROAD SPECTRUM
NARROW? PvPGG TLC
PG TLC PENICILLIN (Pen V+Pen G) GLYCOPEPTIDES TRIMETHOPRIM LINEZOLID CLINDAMYCIN
Anaerobic- METRONIDAZOLE
ANTIBIOTICS- NARROW vs BROAD SPECTRUM
BROAD? CAPTN MCQ
CAPTN MCQ CHLORAMPHENICOL AMINOGLYCOSIDES PENICILLINS (amoxicillin+ampicillin) TETRACYCLINES NITROFURANTOIN MACORLIDES CEPHALOSPORINS QUINOLONES
ANTIBIOTICS- BACTERIOSTATIC vs BACTERICIDAL
BACTERIOSTATIC (prevents growth)? CLTMC
CHLORAMPHENICOL LINEZOLID TETRACYCLINE MACROLIDES CLINDAMYCIN
ANTIBIOTICS- BACTERIOSTATIC vs BACTERICIDAL
BACTERICIDAL (kills)?
CEPHALOSPORIN AMINOGLYCOSIDES NITROFURANTOIN TRIMETHOPRIM QUINOLONES METRONIDAZOLE GLYCOPEPTIDES PENICILLINS
ANTIBIOTIC DIRECTIONS
WITH/AFTER FOOD? MNCP
WITH/AFTER FOOD? Metronidazole Nitrofurantoin Clarithromycin MR Pivmecillinam
ANTIBIOTIC DIRECTIONS
TAKE ON EMPTY STOMACH? (30-60mins before meal/snack OR at least 2hours after)
FLUCLOXACILLIN
PHENOXYMETHYLPENICILLIN
AZITHROMYCIN CAPS (not tabs/liquid)
TETRACYCLINE/OXYTETRACYCLINE
ANTIBIOTICS
CAUTION IN MYASTHENIA GRAVIS?
QUINOLONES- Ciprofloxacin
AMINOGLYCOSIDES- Gentamicin, Metronidazole…
MACROLIDES- Clarithromycin…
TETRACYCLINES- Doxycycline…
ANTIBIOTICS
NEPHROTOXIC/CAUTIONIN KIDNEY FAILURE?
(BIG 3)
NITROFURANTOIN
AMINOGLYCOSIDES
GLYCOPEPTIDES- vancomycin, teicoplanin…
tetracyclines
trimethoprim
ANTIBIOTICS
HEPATOXIC/CAUTION IN LIVER FAILURE?
MACROLIDES FLUCLOXACILLIN CO-AMOXICLAV chloramphenicol nitrofurantoin tetracyclines
3/4 TB meds- rifampicin, isoniazid & pryazinamide (RIPE)
What’s the 4th? ethambutol
TUBERCULOSIS TREATMENT
INITIAL PHASE? MONTHS? RIPE
RIPE- 2 MONTHS RIFAMPICIN ISONIAZID PYRAZINAMIDE EHTAMBUTOL
TUBERCULOSIS TREATMENT
CONTINUATION PHASE? MONTHS? RI.
RI- 4 MONTHS
RIFAMPICIN ISONIAZID
TUBERCULOSIS TREATMENT
Isoniazid sometimes with..?
Pyridoxine (vitamin b6)
TUBERCULOSIS TREATMENT
LATENT TUBERCULOSIS?
3 MONTHS OF RIFAMIPICIN+ISONIAZID
OR
6 MONTHS OF ISONIAZID
TUBERCULOSIS MEDICATIONS
Patients w/ latent TB 35-65 years should be cleared of…?
Hepatooxicity
TUBERCULOSIS MEDICATIONS
RIFAMPICIN?
Discolours contact lenses
Orangey-red body fluids
Enzyme inducer- CYP450 interactions
TUBERCULOSIS MEDICATIONS
ISONIAZID?
PERIPHERAL NUEROPATHY- give prophylactic pyridoxine (vitamin b6) pain/numbness/tingling/weakness in hands/feet
Enzyme inhibitor- CYP450 interaction
TUBERCULOSIS MEDICATIONS
PYRAZNIAMIDE?
HEPATOTOXIC
TUBERCULOSIS MEDICATIONS
ETHAMBUTOL?
VISUAL IMPAIRMENT
OCULAR TOXICITY
FUNGAL INFECTIONS- TREATMENT
ASPERGILLOSIS?
VORICONAZOLE
FUNGAL INFECTIONS- TREATMENT
CRYPTOCOCCOSIS?
AMPHOTERICIN B
FUNGAL INFECTIONS- TREATMENT
VAGINAL THRUSH?
CLOTRIMAZOLE/FLUCONAZOLE. RESISTANT? ITRACONAZOLE
FUNGAL INFECTIONS- TREATMENT
ORAL THRUSH?
NYSTATIN/MICONAZOLE/FLUCONAZOLE. RESISTANT? ITRACONAZOLE
FUNGAL INFECTIONS- TREATMENT
SKIN/NAIL INFECTIONS?
TOPICAL->SYSTEMIC THERAPY
TERBINAFINE/ITRACONAZOLE
FUNGAL INFECTIONS- TREATMENT
TERBINAFINE KEY POINTS?
Apply thinly
Report liver dysfunction- dark urine/ stools, jaundice, N&V, abdominal pain
Continue use-> monitor liver function
TERBINAFINE OTC
Age?
TREATMENT PACK SIZE
Tinea pedis OR Tinea pedis+cruris?
Tinea pedis+cruris+corporis?
Age? 16+
TREATMENT PACK SIZE
Tinea pedis OR Tinea pedis+cruris? 15g
Tinea pedis+cruris+corporis? 30mL spray/30g gel
FUNGAL INFECTIONS
TINEA (ringworm)
Capitis? Corporis? Cruris? Pedis? Unguim/Oncyhomycosis?
Capitis? Head Corporis? Body Cruris? Groin Pedis? Feet Unguim/Oncyhomycosis? Nails
FUNGAL INFECTIONS
TINEA TREATMENT?
Topical antifungal cream
OR
Terbinafine
FUNGAL INFECTIONS
Amorolfine nail lacquer, initial terbinafine
AMOROLFINE OTC
Age?
How often?
Max. strength+pack size?
AMOROLFINE OTC
Age? 18+
How often? Once weekly
Max. strength+pack size? 5%, 3mL
ANTIFUNGAL MEDICATIONS- SIDE-EFFECTS
QT PROLONGATION/HEPATOXICITY? highest to lowest risk… KVIF
KETOCONAZOLE
VORICONAZOLE
ITRACONAZOLE
FLUCONAZOLE
ANTIFUNGAL MEDICATIONS
CARBONDATED DRINKS CAN IMPROVE BIOAVAILABILITY OF..?
ITRACONAZOLE
ANTIFUNGAL MEDICATIONS
LIFE-THREATENING HEPATOTOXICITY?
KETOCONAZOLE- oral treatment suspended,
*Oral ketoconazole for Cushing’s syndrome and topical products containing ketoconazole are not affected by this advice
ANTIFUNGAL MEDICATIONS
PHOTOTOXICITY?
VORICONAZOLE- avoid sunlight exposure
ANTIFUNGAL MEDICATIONS
AMPHOTERICIN B
Cautioned in?
Anaphylactic risk test for IV amphotericin B?
Why maintain same formulation?
Terbinafine risk?
AMPHOTERICIN B
Cautioned in? renal failure
Anaphylactic risk test for IV amphotericin B? Test dose with 30mins obs
Why maintain same formulation? Serious harm/fatal OD, all.
Terbinafine risk? Hepatotoxicity
AMOROLFINE
WHEN SHOULD YOU REFER TO GP/DO NOT SELL? x2-DPB
<18 years >2 nails affected diabetic pregnant breastfeeding
VIRAL INFECTIONS
CHICKEN POX (varicella zoster)/ SHINGLES (herpes zoster) TREATMENT?
ACICLOVIR
OR
VALACICLOVIR (pro-drug)
VIRAL INFECTIONS
CHICKEN POX (varicella zoster)/ SHINGLES (herpes zoster) TREATMENT?
ACICLOVIR
OR
VALACICLOVIR (pro-drug)
VIRAL INFECTIONS
Chickenpox 14+ years?
Can consider antiviral treatment within 24hrs of onset of rash
*NEVER GIVE IBUPROFEN/ASPIRIN U16s-> can mask symptoms of infection
VIRAL INFECTIONS
HERPES/SHINGLES SYMPTOMS?
Tingling sensation/burning/fluid-filled blisters
Shingles will follow pattern of individual nerves on 1 side of body
Can look like a belt/half belt around rib cage/torso
MALARIA
BITE PROTECTION ADVICE (not absolute)?
MOSQUITO NETS IMPREGNATED W/ PERMETHRIN
DEET 20-50% protection (50 best)
- > 2months old
- Avoid ingestion-> wash hands before eating, foul smell
- Pregnancy & breastfeeding fine (wash breast pre-feeding)
- Apply DEET AFTER sunscreen
Note: DEET reduces SPF of sunscreen-> use high SPF lotion
MALARIA PROPHYLAXIS TREATMENT
MALORONE (atovaquone w/ proguanil)
BEFORE TRAVEL?
DOSE?
AFTER TRAVEL?
MAX. USE?
MALORONE (atovaquone w/ proguanil)
BEFORE TRAVEL? 1-2 days
DOSE? 1 OD
AFTER TRAVEL? 1 WEEKLY
MAX. USE? 1 YEAR
MALARIA PROPHYLAXIS TREATMENT
CHLOROQUINE
BEFORE TRAVEL?
DOSE?
AFTER TRAVEL?
MAX. USE?
CHLOROQUINE
BEFORE TRAVEL? 1 WEEK
DOSE? 1 WEEKLY
AFTER TRAVEL? 4 WEEKLY
MAX. USE? LONG-TERM
MALARIA PROPHYLAXIS TREATMENT
PROGUANIL
BEFORE TRAVEL?
DOSE?
AFTER TRAVEL?
MAX. USE?
PROGUANIL
BEFORE TRAVEL? 1 WEEK
DOSE? 1 OD
AFTER TRAVEL? 4 WEEKS
MAX. USE? LONG-TERM
MALARIA PROPHYLAXIS TREATMENT
MEFLOQUINE
BEFORE TRAVEL?
DOSE?
AFTER TRAVEL?
MAX. USE?
MEFLOQUINE
BEFORE TRAVEL? 2-3 WEEKS
DOSE? 1 WEEKLY
AFTER TRAVEL? 4 WEEKS
MAX. USE? 1 YEAR
MALARIA PROPHYLAXIS TREATMENT
DOXYCYCLINE
BEFORE TRAVEL?
DOSE?
AFTER TRAVEL?
MAX. USE?
DOXYCYCLINE
BEFORE TRAVEL? 1-2 DAYS
DOSE? 1 OD
AFTER TRAVEL? 4 WEEKS
MAX. USE? 2 YEARS
MALARIA PROPHYLAXIS TREATMENT
Which one is long-term?
Officer PC Long
Proguanil
Chloroquine
Return from malarial region
Any illness that occurs within 1 year and especially within 3 months of return might be malaria–> see doctor asap!
MALARAIA- PATIENT GROUPS
ASPLENIA?
Risk of severe malaria. OK.
MALARIA- PATIENT GROUPS
PREGNANCY? REFER!!!
AVOID TRAVELLING TO MALAROUS REGIONS. Obvs.
CHLOROQUINE+PROGUANIL can be given; avoid other meds–> Take 5mg folic acid- neural tubule defect risk
400mcg folic acid OTC btw
MALARIA- MEDICATION GROUPS
EPILEPTIC PATIENTS SHOULD AVOID..?
CHOLORQUINE/MEFLOQUINE- reduces seizure threshold
MALARIA- MEDICATION GROUPS
WARFARIN
Treatment?
INR?
WHEN TO MEASURE?
WARFARIN
Treatment? 2-3 weeks before departure
INR? Stable before fly
WHEN TO MEASURE? Measure INR: Before anti-malaria & 7 days after starting course & After completing course
Prolonged stays? check INR on the regs
MALARIA- MEDICATION CAUTIONS
MEFLOQUINE?
MEFLOQUINE?
History of psychiatric disorders. develop? STOP+advice
History of convulsions
MALARIA- MEDICATION CAUTIONS
CHLOROQUINE?
CHLOROQUINE?
History of convulsions
Can be retinotoxic
MALARIA- MEDICATION CAUTIONS
PROGUANIL?
PROGUANIL?
RENAIL IMPAIRMENT-> reduce dose
MALARIA- MEDICATION CAUTIONS
DOXYCYCLINE?
DOXYCYCLINE?
Avoid exposure to sunlight
MALARIA- EMERGENCY STANDBY TREATMENT
When to carry standby treatment? what even is this?
WRITTEN INSTRUCTIONS?
When to carry standby treatment? what even is this? >24hrs away from medical care
WRITTEN INSTRUCTIONS?
- Seek urgent medical attention if fever (38°C or more) develops 7 days (or more) after arriving in a malarious area
- Self-treatment is indicated if medical help is not available within 24 hours of fever onset
DOXYCYCLINE SIDE-EFFECTS?
PHOTOSENSITIVITY
TEETH DISCOLOURATION
HEADACHE
DIARRHOEA
NOT CONSTIPATION!
splenectomy/sickle-cell disease, Abx?
Phenoxymethylpenicillin
MICONAZOLE–NUMBER OF DAYS
MOUTH?
SKIN?
THRUSH?
MOUTH? 2.5ML QDS+7 DAYS AFTER…HALF IN <2
SKIN? BD+10 DAYS AFTER
THRUSH? 7 days?
NYSTATIN?
7 DAYS+48 HOURS AFTER HEALING
Allopurinol labelling?
FULL GLASS OF WATER
TAKE WITH FOOD/MEAL
DO NOT STOP TAKING
Bacterial meningitis under 3?
Give cefotaxime
SESPSIS treamtent?
piperacillin w/ tazo key
MRSA? Add vanc/tteico
WHAT IS ST JOHN’S WORT?
INDUCER!
Omeprazole?
hyponataraemie, increase dose
Hypomagnesaemia (more common after 1 year of treatment, but sometimes after 3 months of treatment)
PD/ASTHMA exacerbations + ABX
Amoxicillin 500mg TDS for 5 days
200mg stat doxy and then 100mg OD for 7 days
200mg BD clarithromycin for 7 days
Prednisolone:
40mg OD for asthma for 5 days
30 OD for COPD for 7-14 days
If prophylaxis then Azithromycin Three times per week