Common use

Rifaximin is a broad-spectrum antibiotic used to treat:

• Traveler's diarrhea caused by certain bacteria
• Irritable bowel syndrome with diarrhea (IBS-D)
• Hepatic encephalopathy in adults

It works by stopping the growth of bacteria in the intestines without being absorbed significantly into the bloodstream. Rifaximin is effective mainly in the gastrointestinal tract, helping reduce symptoms like:

• Bloating
• Gas
• Loose stools

Dosage and direction

Rifaximin is usually taken by mouth, with or without food, as directed by your doctor. Dosage and duration depend on the condition being treated:

• Commonly taken for 3 to 14 days
• Important to complete the full course even if symptoms improve early

Swallow the tablets whole with water. Taking them at the same times each day ensures the best results.

Precautions

Before using rifaximin, tell your doctor if:

• You have liver disease
• You have a history of allergic reactions to rifamycin antibiotics
• Your symptoms worsen or do not improve

While side effects are uncommon, prolonged use may lead to overgrowth of non-susceptible organisms. Rifaximin should not be used for viral infections like the common cold or flu. Avoid taking it longer than prescribed.

Contraindications

Rifaximin should not be used in the following cases:

• Known hypersensitivity to rifaximin or any of its components
• Non-bacterial diarrhea (e.g., viral gastroenteritis)

Patients with severe liver impairment may need close monitoring or dose adjustments. Consult your doctor before starting rifaximin if you are pregnant or breastfeeding.

Possible side effects

Common side effects of rifaximin include:

• Nausea
• Bloating
• Headache
• Abdominal pain
• Dizziness
• Fatigue
• Increased liver enzymes

Rare but serious reactions may include allergic symptoms such as rash, itching, or swelling. Seek immediate medical attention if you experience signs of an allergic response or worsening symptoms.

Drug interactions

Rifaximin has a low risk of systemic interactions due to minimal absorption into the bloodstream. However, possible interactions include:

• Drugs affecting liver enzymes (e.g., cyclosporine)

Always inform your healthcare provider about all medications and supplements you are taking. No significant food interactions are known, but follow your doctor's advice.

Missed dose

If you miss a dose of rifaximin:

• Take it as soon as you remember
• If it's almost time for the next dose, skip the missed one
• Do not double the dose to catch up

Consistency helps the medication work more effectively.

Overdose

Overdose with rifaximin is rare due to low absorption, but symptoms may include:

• Stomach upset
• Worsened side effects
• Allergic reactions

In case of suspected overdose, seek immediate medical help. Supportive treatment is usually sufficient.

Storage

Store rifaximin properly by following these guidelines:

• Keep at room temperature away from moisture and heat
• Store in the original container
• Keep out of reach of children and pets
• Do not use after the expiration date
• Dispose of unused medicine as directed by regulations or your pharmacist

Disclaimer

This information provides a general overview of rifaximin and does not cover all possible directions, drug interactions, or precautions. It should not be used for self-treatment or self-diagnosis. Always consult your healthcare provider for personalized medical advice. We are not responsible for any consequences arising from the use or misuse of this information.