Rifabutin inhibits the activity of enzymes that bacterial cells need to grow and divide. Rifabutin works best on an empty stomach however it may cause nausea . If nausea or vomiting becomes a problem then you will want to take this medication with food or milk. At regular intervals, your health care provider may test a sample of your blood to make sure that you are getting the right dose of medication and to look for adverse effects.
Some medications interact with rifabutin.
Discuss other medications which you take with your health care provider. Do not double your next dose. Tell your health care provider as soon as possible if other symptoms develop. This can permanently stain clothing and soft contacts lenses. There is no mention of problems with intraocular implants.