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DIT mycobac agents
| Question | Answer |
|---|---|
| what drug cocktail is used to treat tb? | Rifampin, Isoniazid, Pyrazinamide, ethambutol |
| What is the only agent used as solo prophylaxis in TB? | INH |
| What antibiotic is used for prevention of MAI in AIDS pts? When should this begin? | Azithromycin, when CD4<50 |
| What is an important side effect of ethambutol? | (eye) Optic neuropathy, Re/Gr color blindness, decreased visual acuity |
| What is the mecahnism of isoniazid? | Decreased synthesis of mycolic acid |
| What are the side effects of isonizid? | Neurotoxicity, Nephrotoxicity, Lupus. |
| What drugss cause drug induced lupus? | (SHIPP) Sulfonamides, Hydralazine, INH, Procainamide, Phenytoin |
| For which infections is rifampin used? | TB, Leprosy. Meningococcal prophylaxis. Chemoprophylaxis in kids for H. flu |
| What are the R's of Rifampin | RNA pol inhibitor, Revs up P450, Red-Orange secretions Rapid resistance if used alone |
| What drugs induce cyt p450 | (BCG PQRS) Barbituates, Carbamazepine, Griseofulvin, Phenytoin, Quinidine, Rifampin, St John's wort |
| Which drugs inhibit cyt p450 | (PICK EGS) Protease Inhibitors, INH, Cimetidine, Ketoconazole, Erythromycin, GF juice, Sulfonamides |
| Gonorrhea tx | ceftriaxone |
| syphillis tx | Benzathine Pen G. |
| Recurrent UTIs | TMP-SMX |
| P jiroveci pneumonia | TMP-SMX |
| exposure to meningococcal or H flu type B meningitis | Rifampin |
| Endocarditis prevention in pt with turbulent flow heart disease | Penicillin |