Hello there
I understand your conern.
Rifampicin-related adverse reactions (ARs), including
hepatitis,
cholestasis,
dermatological events and gastrointestinal disturbances, are not rare and
some even require rifampicin discontinuation. If rifampicin cannot be used,
current recommendations suggest a prolonged anti-tuberculosis regimen of
up to 12–18 months,which will be associated with a higher rate of poor
adherence, recurrence and the possible emergence of resistant strains.
Rifabutin, a rifamycin with activity against
Mycobacterium tuberculosis, has
been used in patients coinfected with tuberculosis and HIV, as it has fewer
drug–drug interactions than rifampicin. Rifabutin has activity against
mycobacteria similar to that of rifampicin and in fact may be more potent.
Furthermore, rifabutin may have a lower incidence of severe ARs than
rifampicin. Thus, it may be an attractive substitute in situations where
rifampicin is intolerable.
Please consult the doctor treating your wife for the substitution. Her
tiredness and swollen legs could be because of
hypoproteinemia.. So please
ask her to take a healthy diet while increasing the protein
Hope that helps your wife
cheers