A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.
The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.
Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.
Known as Coldir in the UK
Chemical Name: RIFAXIMIN (rif-AX-i-min)
Xifaxan (Rifaximin) is a prescription antibiotic used to treat several different conditions. It can be used for the following:
Xifaxan is an antibacterial medication that works by binding to bacterial DNA-dependent RNA polymerase, preventing bacteria from replicating their DNA and preventing bacterial growth.
Xifaxan is thought to reduce the occurrence of hepatic encephalopathy by inhibiting the growth of ammonia-producing bacteria.
Xifaxan works in travelers' diarrhea and IBS-D by preventing the growth of certain harmful bacteria.
Xifaxan has different directions based on the condition being treated. Take it exactly as prescribed by your physician. That standard directions are:
The active ingredient and name of the Xifaxan generic is rifaximin.
The medication is available as Xifaxan 200 mg tablets and Xifaxan 550 mg tablets.
If taking Xifaxan for travelers' diarrhea, it may not be effective for pathogens other than Escherichia coli (E. coli). If diarrhea does not improve within 24 to 48 hours after starting Xifaxan, stop taking the medication and speak with your doctor about different antibiotic options.
Do not use Xifaxan to treat diarrhea accompanied by fever or blood in the stool, as this may be a sign of Clostridium difficile-associated diarrhea.
If you have a history of liver damage or liver failure, speak with your doctor before starting Xifaxan.
Xifaxan has the potential for important drug-drug interactions, especially with medications that are used to prevent organ transplant rejections. Speak with your doctor or pharmacist about your other medications before starting Xifaxan.
Some of the most common side effects of Xifaxan include:
Please speak with your doctor or pharmacist for a complete list of side effects. The side effects experienced may vary based on which condition is being treated and for how long the medication is being taken.
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