Anti-TB drugs Flashcards

1
Q

What are the first-line anti-TB drugs?

A

Rifampcin
Isoniazid
Ethambutol
Pyrazinamide

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2
Q

which drug causes auto induction and increases metabolism of Warfarin, phenytoin, and oral contraceptives?

A

Rifampcin

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3
Q

Which drug causes GOUT and what other adverse effects does it cause?

A

Pyrazinamide
arthralgia & myalgia
hepatotoxicity

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4
Q

Which drug causes optic neuritis and renal impairment?

A

Ethambutol

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5
Q

Isoniazid inhibits the metabolism of what drugs?

A

Warfarin
Carbamazepine
Phenytoin

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6
Q

Which drug should be taken with vitamin B6 and why?

A

Isoniazid because it could cause peripheral neuropathy

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7
Q

What is the only bacteriostatic drug?

A

Ethambutol

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8
Q

which drug inhibits protein synthesis by binding to 30s subunit of bacterial ribosomes?

A

Aminoglycosides (streptomycin, amikacin, capreomycin)

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9
Q

Which drug gets activated by KatG and what does it target?

A

Isoniazid

targets Inha & KasA

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10
Q

Which drug inhibits DNA dependent RNA polymerase and what adverse effects could be caused?

A

Rifampcin
red-orange secretions
flu-like symptoms
hepatotoxicity

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11
Q

which drug’s absorption is impaired with high fat meals?

A

Isoniazid

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12
Q

which drug inhibits arabinosyl transferase?

A

Ethambutol

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13
Q

Which drug inhibits fatty acid synthase in mycobacteria?

A

Pyrazinamide

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14
Q

Which drug causes convulsions and psychosis at high doses and has an equal concentration in the CSF and blood?

A

Isoniazid

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15
Q

Which drug causes ototoxicity and what could enhance it?

A

Aminnoglycoside

loop diuretics

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16
Q

Which drug causes tendinitis, and what other adverse effects could it cause?

A

Fluoroquinolones (LEVOFLOXACIN - MOXIFLOXACIN)

phototoxicity and tendon rupture

17
Q

Which drug has good entry to inflamed tissue and causes nephrotoxicity?

A

Aminoglycosides

18
Q

which drug prolongs action of theophylline and warfarin

A

Fluoroquinolones (LEVOFLOXACIN - MOXIFLOXACIN)

19
Q

How do you treat latent TB?

A

3 months of isoniazid & rifampicin
OR
6 months of isoniazid

20
Q

what type of TB is treated for 12 months with steroids?

A

meningeal TB

21
Q

What type of TB takes 6 months to treat with the all first line drugs?

A

pulmonary TB