DDInter734 DDInter629
Fidaxomicin is a novel macrolide antibiotic used in the treatment of diarrhea caused by _Clostridioides_ (formerly _Clostridium_) _difficile_ in adult and pediatric patients over the age of 6 months. Fidaxomicin is a naturally-occurring 18-member macrocycle derived from fermentation. Because fidaxomicin contains an 18-membered lactone ring in its structure, it is referred to as a macrocyclic lactone antibiotic drug. The antibacterial activity of fidaxomicin is distinct from macrolides and rifamycins, as the bactericidal activity is time-dependent, and not concentration-dependent. Fidaxomicin was the first macrocyclic lactone antibiotic with activity against _C. difficile_, and it displays a narrow spectrum of activity against gram-positive anaerobes. It mediates its potent bactericidal action on the bacteria by inhibiting the bacterial RNA synthase
Eliglustat is a glucosylceramide synthase inhibitor used for the long-term treatment of type 1 Gaucher disease.[A3752,L41404] Gaucher disease is a rare genetic disorder characterized by the deficiency of acid β-glucosidase, an enzyme that converts glucosylceramide into glucose and ceramide. In patients with Gaucher disease, the accumulation of glucosylceramide leads to the formation of Gaucher cells that infiltrate the liver, spleen, bone marrow and other organs. This leads to complications such as anemia and thrombocytopenia.[L41404,A246384] By inhibiting glucosylceramide synthase, eliglustat reduces the accumulation of glucosylceramide. Eliglustat is mainly metabolized by CYP2D6. Patients selected for eliglustat treatment undergo an FDA-cleared genotyping test to establish if they are CYP2D6 extensive metabolizers (EMs), intermediate metabolizers (IMs), or poor metabolizers (PMs). The results of this test dictate eliglustat dosing recommendations for each type of patient. There are no dosing recommendations for CYP2D6 ultra-rapid or indeterminate metabolizers.[L41404,A7634] Eliglustat was approved by the FDA in August 2014 as an oral substrate reduction therapy for the first-line treatment of type 1 Gaucher disease.[L41404,A7634] Enzyme replacement continues to be the standard of care for the treatment of type 1 Gaucher disease ([imiglucerase], [velaglucerase alfa], [taliglucerase alfa]); however, oral substrate reduction therapies with favourable safety profiles, such as eliglustat, represent a treatment alternative.[A246389,A7634]
Fidaxomicin {u} (Compound) binds {v} (Gene) ABCB1
ABCB1 {u} (Gene) is bound by {v} (Compound) Amprenavir
Amprenavir {u} may lead to a major life threatening interaction when taken with {v} Eliglustat
Fidaxomicin {u} (Compound) is included by {v} (Pharmacologic Class) Macrolides
Macrolides {u} (Pharmacologic Class) includes {v} (Compound) Clarithromycin
Clarithromycin {u} may lead to a major life threatening interaction when taken with {v} Eliglustat
Fidaxomicin {u} (Compound) binds {v} (Gene) ABCB1
ABCB1 {u} (Gene) is bound by {v} (Compound) Apixaban
Apixaban {u} may cause a moderate interaction that could exacerbate diseases when taken with {v} Eliglustat
Fidaxomicin {u} (Compound) causes {v} (Side Effect) Flatulence
Flatulence {u} (Side Effect) is caused by {v} (Compound) Amoxapine
Amoxapine {u} may cause a moderate interaction that could exacerbate diseases when taken with {v} Eliglustat
Fidaxomicin {u} (Compound) causes {v} (Side Effect) Flatulence
Flatulence {u} (Side Effect) is caused by {v} (Compound) Donepezil
Donepezil {u} may cause a minor interaction that can limit clinical effects when taken with {v} Eliglustat
Fidaxomicin {u} (Compound) causes {v} (Side Effect) Nervous system disorder
Nervous system disorder {u} (Side Effect) is caused by {v} (Compound) Phenytoin
Phenytoin {u} may lead to a major life threatening interaction when taken with {v} Eliglustat
Fidaxomicin (Compound) binds ABCB1 (Gene) and ABCB1 (Gene) is bound by Amprenavir (Compound) and Amprenavir may lead to a major life threatening interaction when taken with Eliglustat
Fidaxomicin (Compound) is included by Macrolides (Pharmacologic Class) and Macrolides (Pharmacologic Class) includes Clarithromycin (Compound) and Clarithromycin may lead to a major life threatening interaction when taken with Eliglustat
Fidaxomicin (Compound) binds ABCB1 (Gene) and ABCB1 (Gene) is bound by Apixaban (Compound) and Apixaban may cause a moderate interaction that could exacerbate diseases when taken with Eliglustat
Fidaxomicin (Compound) causes Flatulence (Side Effect) and Flatulence (Side Effect) is caused by Amoxapine (Compound) and Amoxapine may cause a moderate interaction that could exacerbate diseases when taken with Eliglustat
Fidaxomicin (Compound) causes Flatulence (Side Effect) and Flatulence (Side Effect) is caused by Donepezil (Compound) and Donepezil may cause a minor interaction that can limit clinical effects when taken with Eliglustat
Fidaxomicin (Compound) causes Nervous system disorder (Side Effect) and Nervous system disorder (Side Effect) is caused by Phenytoin (Compound) and Phenytoin may lead to a major life threatening interaction when taken with Eliglustat