Drug Interactions Flashcards

1
Q

carbazepaine and contraceptives?

A

carbamezapine reduces contraceptive efficacy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

levonogestrel and antiepiletics?

A

reduces seizure threshold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

ssris reduce or increase inr?

A

increase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

ssris and doacs?

A

Selective serotonin reuptake inhibitors (SSRIs) and direct oral anticoagulants (DOACs) can increase the risk of major bleeding, especially in the first month of taking both medications.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

ssri and nsaids?

A

increase risk of bleeding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

warfarin and nsaids

A

increase risk of bleeding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

St John’s Wart and ssri

A

serotonin syndrome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

St John’s Wart and warfarin

A

St John’s wort decreases the anticoagulant effect of Warfarin. Manufacturer advises avoid.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

st johns wart and doac

A

St John’s wort is predicted to decrease the exposure to Apixaban.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

enteral feeding and warfarin?

A

contains vit k - decreases inr

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

cranberry juice and warfarin?

A

Cranberry juice.
- Enhances anticoagulant effect. Avoid.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

meropenem and sodium valproate

A

meropenem and sodium valproate reduces sodium valproate by 60-100%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

iron tablets levo ?

A

4hours apart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

ssri and triptans?

A

HEALTHPATHWAYS SAYS : Can be safely used in combination with selective serotonin reuptake inhibitors (SSRIs) and serotonin and norepinephrine reuptake inhibitors (SNRIs), but still counsel about the symptoms of serotonin toxicity (e.g. agitation, muscle twitching or rigidity, sweating, diarrhoea) however this is exceedingly rare.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

simvastatin important interactions. Do all these drug interactions apply for atorvastatin?

A
  1. clarithromycin and erythromycin - increases exposure to simvastatin
  2. colchicine - rhabdomyolsis
  3. deltaparin/fragmin and enoxiparin
  4. Diltiazem and verapmil
  5. all the conazoles (fungal)

yes. therefore if you have a man with gout flare up you HAVE TO TELL THEM TO STOP THEIR STATIN!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

drug inducers?

C
R
A
P
G
P
S

A

Carbamezapine
Rifampicin
Alcohol chronically
Phenytoin (affects Warfarin and Digoxin for this reason)
Grusefulvin
Phenobarbital
Smoking and St John’s wart

17
Q

Enzyme inhibitors

S
I
C
K
F
A
C
E
S
.
C
O
M

A

SICKFACES.COM INHIBIT ME
Sodium valproate
Isonazid
Ciprofloxacin
Ketaconazole
Fluconazole
Alcohol acutely and AMIODARONE
Chloramphenicol
Erythromcyin
Sulphonamides
Clarithromycin
Omeprazole
Metronidazole (for 48hr afterwards too)

18
Q

Clopidogrel and omeprazole SHOULD NOT BE prescribed together why?

A

omeprazole reduces the effectivenesss of clopidogrel
(inhibitor)