Package | Dosage | Price | Price per Dose | |
---|---|---|---|---|
Dosage: 200mg | ||||
270 pill | 200mg | $223.99 | $0.83 | |
180 pill | 200mg | $163.99 | $0.91 | |
120 pill | 200mg | $119.99 | $1.00 | |
90 pill | 200mg | $94.99 | $1.06 | |
60 pill | 200mg | $68.99 | $1.15 | |
30 pill | 200mg | $35.99 | $1.20 | |
20 pill | 200mg | $24.99 | $1.25 | |
10 pill | 200mg | $13.99 | $1.40 | |
Dosage: 400mg | ||||
270 pill | 400mg | $409.99 | $1.52 | |
180 pill | 400mg | $287.99 | $1.60 | |
120 pill | 400mg | $197.99 | $1.65 | |
90 pill | 400mg | $152.99 | $1.70 | |
60 pill | 400mg | $104.99 | $1.75 | |
30 pill | 400mg | $53.99 | $1.80 | |
20 pill | 400mg | $36.99 | $1.85 | |
10 pill | 400mg | $18.99 | $1.90 | |
Dosage: 550mg | ||||
270 pill | 550mg | $485.99 | $1.80 | |
180 pill | 550mg | $332.99 | $1.85 | |
120 pill | 550mg | $239.99 | $2.00 | |
90 pill | 550mg | $188.99 | $2.10 | |
60 pill | 550mg | $128.99 | $2.15 | |
30 pill | 550mg | $66.99 | $2.23 | |
20 pill | 550mg | $46.99 | $2.35 | |
10 pill | 550mg | $24.99 | $2.50 |

Rifaximin Description
Introduction to Rifaximin
Rifaximin is an antibiotic that belongs to the rifamycin group. It is primarily used to treat gastrointestinal infections and certain liver conditions. Since it is formulated to act mainly in the gut, it is often chosen for its targeted approach. Patients using Rifaximin can benefit from its effectiveness against specific bacterial infections with minimal systemic absorption, which reduces the risk of side effects. Its broad-spectrum activity makes it a versatile option in managing various gastrointestinal-related issues.
Usage and Indications
Rifaximin is commonly prescribed for conditions such as traveler's diarrhea caused by E. coli bacteria, hepatic encephalopathy, and irritable bowel syndrome with diarrhea. It is also used in the prevention of bacterial overgrowth and to reduce the recurrence of certain infections. The medication is usually taken orally, with doses customized based on the condition being treated. It’s important to follow the healthcare provider’s instructions carefully to achieve optimal results. The medication’s targeted action in the intestines makes it effective for localized bacterial infections without affecting the entire body.
Mechanism of Action
This antibiotic works by inhibiting bacterial RNA synthesis, which prevents the bacteria from replicating and eventually leads to their death. Since Rifaximin remains largely within the gastrointestinal tract, it minimizes systemic exposure, making it a safer option compared to other antibiotics. Its ability to selectively target pathogenic bacteria makes it highly effective in clearing infections while preserving beneficial gut flora to some extent.
Potential Benefits
Patients often appreciate Rifaximin for its quick onset of action and tolerability. It can significantly improve symptoms related to gastrointestinal infections, reducing diarrhea, bloating, and discomfort. Additionally, for patients with hepatic encephalopathy, Rifaximin helps lower the risk of recurrent episodes by decreasing the production of ammonia by gut bacteria. Its minimal systemic absorption also means fewer drug interactions and a lower likelihood of systemic side effects, making it suitable for long-term use in some conditions.
Side Effects and Precautions
Although generally well-tolerated, Rifaximin may cause mild side effects in some individuals. Common reactions include nausea, headache, and fatigue. Serious adverse effects are rare but can include allergic reactions or severe gastrointestinal disturbances. Patients with a history of allergy to rifamycin antibiotics should avoid using Rifaximin. It is essential to inform the healthcare provider about all medications being taken to prevent interactions, especially with medications affected by CYP450 enzymes. Pregnant or breastfeeding women should consult their doctor before starting treatment.
Drug Interactions
Rifaximin has a low potential for interactions due to its minimal systemic absorption. However, it can affect the absorption of other drugs through its influence on gut flora or intestinal pH. Caution should be exercised when combining Rifaximin with other medications, especially those requiring hepatic metabolism or those that have narrow therapeutic windows. Always inform your healthcare provider about all medicines you take to avoid potential interactions.
Availability and Dosage
This medication is available by prescription in various formulations, typically in tablet form. The dosage depends on the condition being treated, with common courses lasting from a few days to several weeks. It is crucial to adhere to the prescribed regimen to ensure full efficacy and reduce the risk of resistance. Do not stop taking Rifaximin without consulting your healthcare professional, even if symptoms improve early.