Rifagut 550 Mg

Last Updated on 05/18/2026 ✔ Medically Reviewed by Dr. Arjun Srivastav

What is Rifagut 550 mg?

Rifagut 550 mg is a prescription antibiotic primarily used to treat infections in the gastrointestinal tract. It contains the active ingredient Rifaximin, a unique antibiotic that works directly in the intestines with minimal absorption into the bloodstream.

This localized action makes Rifagut 550 mg especially effective for digestive-related conditions while reducing the risk of systemic side effects.

Composition of Rifagut 550 mg

Each tablet of Rifagut 550 mg tablet contains:

Rifaximin – 550 mg

Rifaximin belongs to the rifamycin class of antibiotics, commonly used to treat bacterial infections by stopping bacterial growth.

How Does Rifagut 550 mg Work?

Rifagut 550 mg works by targeting bacteria in the gut. It inhibits bacterial RNA synthesis, which prevents bacteria from multiplying and surviving.

Key Features of Its Mechanism:

• Acts locally in the intestine
• Minimal absorption into the bloodstream
• Reduces harmful gut bacteria without significantly affecting beneficial bacteria

This makes it ideal for treating conditions where the infection is confined to the digestive system.

What is Rifagut 550 mg used for?

Hepatic Encephalopathy: This is a condition of severe liver infection that may affect your brain.

IBS with Diarrhea: Severe stomach irritation and pain along with diarrhea.

Small Intestinal Bacteria: Bacterial infections in the small intestine.

How to Take Rifagut for Hepatic Encephalopathy?

Method of use: Take the tablet with a glass of water. Swallow it whole.

Consistency: Take your medicine at the same time every day. This helps keep the amount of medicine proper in your body.

Food: You can take Rifagut 550 with or without food. If you feel sick, to your stomach or have a tummy, eating a light meal while taking it might help.

Is Generic Rifagut 550 Effective?

Yes, Rifagut 550 works well. It has an active part, Rifaximin, in the same amount as brand-name ones, like Xifaxan.

Dosage Guidelines

IBS with diarrhea:

• Adults—550 mg for at least 2 to 3 weeks.
• Children- generally a small dose suitable for the age and weight of the child.

Traveler’s diarrhea:

• Adults and children above 12 years—200 mg 3 times daily for 3 to 5 days.
• Less than 12-year child—given only after age and weight calculation.

Hepatic encephalopathy:

• Adults—550 mg dose one time daily for at least 14 days.
• Children—Your doctor must determine use and dose.

Other Available Strengths

• Refagut 200 mg
• Refagut 400 mg
• Refagut 550 mg

What are the side effects of Rifagut 550 mg?

Common Side Effects

Headache: have water to get rid of headache or dizzy feelings, or lie down in bed, or else take the medicine before going to bed at night.

Nausea: Avoid taking heavy, oily food items or when you are on an empty stomach for hours.

Palpitations: Breathe slowly and do light yoga.

Flushing: Take the medicine before you sleep and see if a mild fever develops, in which case you need to consult with the doctors.

Mild fever: See if it persists or gets intense over a few days, and consult with a doctor.

Weight loss: See if weight loss is abrupt and too intense, in which case you need a proper remedy from the doctors.

Clinical benefits of Rifagut 550 mg

Hepatic Encephalopathy: Rifaximin helps prevent HE episodes from coming. Studies show it lowers the risk of HE episodes by about 58%. Using Rifaximin decreases hospitalizations to HIM from 22.6% in groups not taking it to 13.6% in groups that do take it.

Rifaximin works by getting rid of bacteria that produce ammonia. This helps clear up confusion and “brain fog” that people with liver disease often experience.

Irritable Bowel Syndrome with Diarrhea (IBS-D): Symptom Relief: Some studies, called TARGET 1 and 2, find that taking this treatment for two weeks really helps people feel better when they have Irritable Bowel Syndrome.

Small Intestinal Bacterial Overgrowth (SIBO): Bacterial Eradication: It works well with about 70, out of 100 people seeing their bacteria go away when taking doses.

This makes Rifagut particularly suitable for digestive system disorders.

Does Rifagut 550 mg interact with other medications?

Oral Contraceptives: Such contraceptive medicines may reduce their effectiveness under the effects of Rifagut.

Warfarin: If you are taking Warfarin to thin your blood, the levels of Warfarin in your blood may go up and down. Your doctor may need to change the amount of Warfarin you take.

Legal Status and Prescription Requirements

Buy Rifagut 550 mg tablet, which is also known as Rifaximin, is a medicine that you can only get with a prescription. It needs to be prescribed by a practitioner who is registered.

Doctor Tips for Safe Use of Rifagut 550 mg Australia

Visit doctors for major side effects:

• If you have bloody diarrhea that gets worse or if you have a fever with it, stop taking the medicine and call your doctor right away.
• Look out for a skin rash, itching, hives, or if your face, lips, and tongue start to swell.
• If you feel tired and don’t know why, if your skin or eyes turn yellow, or if your urine becomes dark, tell your doctor immediately.

Lifestyle and diet choices:

• You should not drink alcohol when you are following the treatment.
• Alcohol can make your liver work worse, and it can make you feel dizzy and tired.
• When you are trying to get rid of diarrhea, you should eat foods that are not spicy and are easy to digest, like bananas, rice, and toast. You should also drink a lot of water.

Can You Buy Rifagut 550 mg from Australiarxmeds?

Purchasing Rifagut 550 mg (Rifaximin) from an online source like Australiarxmeds involves a few critical legal and safety considerations, especially if you are located in Australia.