How should I use rifampin?
Take this medication exactly as prescribed by your doctor. Do not take it in larger
amounts or for longer than recommended. Follow the directions on your prescription label.
Take the rifampin capsule on an empty stomach 1 hour before or 2 hours after meals.
Swallow the capsule with a full glass (8 ounces) of
water.
Take this medication for the full prescribed length of time. Your symptoms may
improve before the infection is completely cleared. Rifampin will not treat a viral infection such
as the common cold or flu.
Store this medication at room temperature away from moisture and heat.
What happens if I miss a dose?
Take the missed dose as soon as you remember. However, if it is almost time for your
next regularly scheduled dose, skip the missed dose and take the next one as directed. Do
not take extra medicine to make up a missed dose.
What happens if I overdose?
Seek emergency medical attention if you think have used too much of this medicine.
Overdose symptoms may include nausea, vomiting, itching, headache, weakness, fast or
uneven heart rate, or feeling like you might pass out.
What should I avoid while taking rifampin?
Do not wear contact lenses while you are taking rifampin. This medicine may discolor
your tears, which could permanently stain soft contact lenses.
What are the possible side effects of rifampin?
Get emergency medical help if you have any of these
signs of an allergic
reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have a serious side effect such as:
-
fever, chills, body aches, flu symptoms;
-
joint pain or swelling;
-
easy bruising or bleeding, weakness;
-
urinating less than usual or not at all; or
-
nausea, stomach pain, loss of appetite, itching, dark urine,
clay-colored stools, jaundice (yellowing of the skin or eyes).
Less serious side effects may include:
-
tired feeling; or
-
red or orange colored urine, stools, tears, sweat, or saliva.
This is not a complete list of side effects and others may occur. Tell
your doctor about any unusual or bothersome side effect.
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