18 interactions . 18 interactions . Find information on Fidaxomicin (Dificid) in Daviss Drug Guide including dosage, side effects, interactions, nursing implications, mechanism of action, half life, administration, and more. Fidaxomicin, a nonabsorbed macrocyclic compound, is the first antimicrobial agent approved by the FDA for the treatment of Clostridium difficile infection (CDI) in adults over the last 25 years. Cyclosporine is an inhibitor of multiple transporters, including P-gp. Fidaxomicin and its main metabolite, OP-1118, are substrates of the efflux transporter, P-glycoprotein (P-gp), which is expressed in the gastrointestinal tract. Effect of hepatic impairment on pharmacokinetics not formally studied, but elimination not expected to be substantially affected since fidaxomicin and its main metabolite (OP-1118) do not appear to undergo substantial hepatic metabolism. Fidaxomicin is a narrow spectrum antibiotic, and broadening its activity through structural modification could provide new antibiotics. Overall, fidaxomicin has been generally well tolerated with the most common adverse effects reported as mild gastrointestinal complaints. Davis Drug Guide PDF. Side effects in children can include: 3 Fever Vomiting Diarrhea Constipation Rash High levels of aminotransferases in the blood, which can indicate liver damage These medications may cause some risk when taken together. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Fidaxomicin is available in tablets of 200 mg under the brand name Dificid. Fidaxomicin belongs to the class of medicines known as macrolide antibiotics. Effect of P-gp inhibitors on fidaxomicin. Fidaxomicin and its main metabolite, OP-1118, are substrates of the efflux transporter, P-glycoprotein (P-gp), which is expressed in the gastrointestinal tract. It is bactericidal, and its mechanism of action relates to inhibition of a RNA polymerase at a site distinct from where rifamycins interact. 7 DRUG INTERACTIONS 7.1 Cyclosporine 8 USE IN SPECIFICPOPULATIONS 8.1 Pregnancy 8.2 Lactation 8.4 Pediatric Use 8.5 Geriatric Use 10 OVERDOSAGE 11 DESCRIPTION DIFICID has not been studied for the treatment of infections other than CDAD.DIFICID should only be used for the treatment of CDAD. Drug interaction overview Not dependent on CYP450 enzymes for metabolism Fidaxomicin and its main metabolite, OP-1118, are P-gp substrates, but not significantly affected by Fidaxomicin has the following interaction information: Drug interaction information. Fidaxomicin is a substrate of P-gp. Severe interactions are highlighted with a red marker. Major Macrolide antibiotics (applies to Dificid) QT prolongation Major Potential Hazard, High plausibility. List of interactions for Fidaxomicin. Interactions for Fidaxomicin Metabolism of fidaxomicin and formation of its main metabolite (OP-1118) not dependent on CYP isoenzymes. It works by killing bacteria or preventing their growth. Fidaxomicin and OP-1118 are substrates of P-glycoprotein (P-gp) transport system. No clinically important effect on pharmacokinetics of CYP3A4, CYP2C9, or CYP2C19 substrates. Manufacturer states dosage adjustments not needed if fidaxomicin used concomitantly with CYP isoenzyme substrates. The typical regimen is 200 mg twice daily for 10 days which is effective in eradicating C. difficile in 80% to 90% of patients. It has poor oral absorption with high fecal concentrations. There is 1 disease interaction with Dificid (fidaxomicin): Major Potential Hazard, High plausibility. Applicable conditions: Hypokalemia, Magnesium Imbalance, Arrhythmias Prolonged cardiac repolarization and QT interval have been reported in patients receiving treatment with macrolides. Abstract. Includes Fidaxomicin indications, dosage/administration, pharmacology, mechanism/onset/duration of action, half-life, dosage forms, interactions, warnings, adverse reactions, off-label uses and more. Data synthesis: Fidaxomicin is a macrocyclic compound bactericidal against C. difficile and inhibits toxin and spore production. Fidaxomicin has the following interaction information: Drug interaction information. Since there is minimal systemic absorption of fidaxomicin, the drug is not effective for treatment of systemic infections. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco. Drugs Metabolized by Hepatic Microsomal Enzymes Drug Information on fidaxomicin includes side effects, uses, drug interactions, dosage, drug pictures, overdose symptoms, and what to avoid. Moderate Interactions. Interactions between Dificid (fidaxomicin) and other medications Dificid (fidaxomicin) may interact with certain medications or supplements. CYP enzymes do not appear to play a major role in the metabolism of fidaxomicin or formation of OP-1118. Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Amiodarone. NDA 201699. Taking large amounts of niacinamide, a form of vitamin B3 , can suppress inflammation in the body. Find out more about BNF interactions information. Fidaxomicin, a nonabsorbed macrocyclic compound, is the first antimicrobial agent approved by the FDA for the treatment of Clostridium difficile infection (CDI) in adults over the last 25 years. Fidaxomicin is used to treat diarrhea caused by infection with Clostridium difficile. Cyclosporine. Reviewed: January 15, 2021. Fidaxomicin is a macrolide antibiotic that fights bacteria. Applicable conditions: ADVERSE REACTIONS Severe GI bleeding / Delayed / 4.0-4.0 GI obstruction / Delayed / 0-2.0 angioedema / Rapid / Incidence not known Fidaxomicin side effects. Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult 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, sores in your mouth and throat; Main transporters and associated interactions P-gp (ABCB1) In vitro, fidaxomicin and its metabolite OP-1118 were substrates of P-gp, with efflux ratios of 44.9 and 6.36, respectively, in Caco-2 cells. 5.3 Development ofDrug-Resistant Bacteria Fidaxomicin and OP-1118 are substrates of P-glycoprotein (P-gp) transport system. 7 DRUG INTERACTIONS 7.1 Cyclosporine 8 USE IN SPECIFIC POPULATIONS 8.1 Pregnancy 8.2 Lactation 8.4 Pediatric Use 8.5 Geriatric Use 10 OVERDOSAGE DIFICID is not expected to be effective for the treatment of other types of infections due to minimal systemic absorption of fidaxomicin [see Clinical Pharmacology (12.3)]. Find out more about BNF interactions information. Fidaxomicin is indicated for the treatment of Clostridioides (formerly Clostridium) difficile-associated diarrhea in adult and pediatric patients 6 months of age and older.10Fidaxomicin should only be used in patients with proven or strongly suspected C. difficile infection to reduce Less serious side effects may include: nausea, vomiting, stomach pain; bloating or gas; or mild rash or itching. Amiodarone. The importance of this interaction is unknown. Fidaxomicin has the following interaction information: Drug interaction information. Overall, fidaxomicin has been generally well tolerated with the most common adverse effects reported as mild gastrointestinal complaints. fidaxomicin (Dificid) Brand Names: Dificid Fidaxomicin should not be used to treat infections that are not related to Clostridium difficile. Other Interactions . What drugs interact with Dificid (fidaxomicin)? It is bactericidal, and its mechanism of action relates to inhibition of a RNA polymerase at a site distinct from where rifamycins interact. Drug Interactions. Interactions Disease Print Save Dificid Disease Interactions There is 1 disease interaction with Dificid (fidaxomicin). Consult your healthcare professional (e.g., doctor or pharmacist) for more in formation. fidaxomicin oral Medication Interactions Does DIFICID Interact with other Medications? List of interactions for Fidaxomicin. Find out more about BNF interactions information. Common side effects of Fidaxomicin include: nausea, vomiting, stomach pain, bloating, gas, mild rash, and itching Comments: Other in vitro studies In vitro studies with human intestinal and liver microsomes and hepatocytes indicate fidaxomicin is primarily transformed by hydrolysis at the isobutyryl ester to form the major active metabolite, OP-1118. Always let your doctor and pharmacist know about any other medications or supplements (including prescribed and over-the-counter medications, vitamins, and dietary or herbal supplements) that you are currently taking. Therefore, the DDI risk is expected to be low. Cyclosporine is an inhibitor of multiple transporters, including P-gp. Cyclosporine. Severe interactions are highlighted with a red marker. Drug Interactions . Severe Interactions These medications are not usually taken together. Any antibiotic may cause diarrhea, nausea, vomiting, anorexia, and hypersensitivity reactions. 18 interactions . Consult your However, this medicine will not work for colds, flu, or other virus infections. It appears to have minimal need for renal or hepatic adjustments and minimal concerns for drug-drug interactions. Amiodarone. 1. Fidaxomicin and OP-1118 are not substrates of major CYP enzymes. Co-administration of single doses of the P-gp inhibitor cyclosporine A and fidaxomicin in healthy volunteers, resulted in a 4- and 2-fold increase in fidaxomicin C max and AUC, respectively and in a 9.5 and 4-fold increase in C max and AUC, respectively, of the main active metabolite OP-1118. It appears to have minimal need for renal or hepatic adjustments and minimal concerns for drug-drug interactions. List of interactions for Fidaxomicin. Severe interactions are highlighted with a red marker.

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