Bacterial infections:
Indications for: MYCOBUTIN
Prevention of disseminated Mycobacterium avium complex (MAC) disease in advanced HIV infection.
Adult Dosage:
≥18yrs: 300mg once daily. If inclined to GI upset, may give 150mg twice daily with food. Severe renal impairment (CrCl <30mL/min), concomitant amprenavir, indinavir, or nelfinavir: reduce rifabutin dose by 50%. Concomitant ritonavir, fosamprenavir/ritonavir, lopinavir/ritonavir, saquinavir/ritonavir, tipranavir/ritonavir: reduce rifabutin dose by 75% (to max 150mg every other day or 3 times per week).
Children Dosage:
<18yrs: not established.
MYCOBUTIN Contraindications:
Concomitant delavirdine, voriconazole.
MYCOBUTIN Warnings/Precautions:
Active tuberculosis: do not administer. Evaluate and test for tuberculosis before and during therapy; treat with combination antituberculosis regimen if active disease occurs. Suspend therapy if uveitis is suspected. Monitor for severe cutaneous adverse reactions (eg, SJS, TEN, DRESS, AGEP). Do hematologic tests periodically. May stain body secretions and contact lenses. Moderate to severe hepatic impairment. Elderly. Pregnancy. Nursing mothers: not recommended.
MYCOBUTIN Classification:
Rifamycin.
MYCOBUTIN Interactions:
See Contraindications. Concomitant bictegravir, doravirine, rilpivirine: not recommended. Antagonizes dapsone, sulfamethoxazole-trimethoprim, zidovudine, oral contraceptives (use additional or alternative contraception methods) or drugs that are metabolized by CYP3A enzymes (eg, itraconazole, clarithromycin, indinavir, saquinavir/ritonavir, posaconazole). Potentiated by CYP3A inhibitors (eg, amprenavir, fluconazole, clarithromycin, indinavir, lopinavir/ritonavir, nelfinavir, posaconazole, saquinavir/ritonavir, tipranavir/ritonavir).
Adverse Reactions:
Discolored urine, GI upset, abdominal pain, dyspepsia, fever, myalgia, rash, taste perversion, neutropenia, thrombocytopenia, leukopenia; rare: myositis, uveitis.
Generic Drug Availability:
YES
How Supplied:
Caps—100
