DDInter1055 DDInter1480
Levofloxacin is a fluoroquinolone antibiotic and the optical S-(-) isomer of racemic [ofloxacin]. It reportedly carries 8 to 128-fold more activity against both gram-negative and gram-positive bacteria compared to R-(+)-ofloxacin and remains stereochemically stable following administration (i.e. it does not invert to the inactive isomer). Levofloxacin, along with other quinolones such as [gatifloxacin] and [moxifloxacin], is a member of the third generation of fluoroquinolones, colloquially referred to as the "respiratory quinolones" due to improved activity against gram-positive bacteria commonly implicated in respiratory infections.[A31453,A190756] Levofloxacin was first approved by the FDA in 1996, and was approved in Canada and several South American countries soon after.
Pitolisant is a selective antagonist or inverse agonist of the histamine H3 receptor used to treat type 1 or 2 narcolepsy. Narcolepsy is a chronic neurological disorder that affects 1 in 2,000 individuals and is characterized by excessive daytime sleepiness, abnormal REM sleep manifestations, sleep paralysis and hypnagogic hallucinations. About 60-70% of patients with narcolepsy experience cataplexy, which is a sudden loss of muscle tone triggered by positive or negative emotions. Histaminergic neuron signalling in the brain plays a role in maintaining wakefulness; by blocking histamine autoreceptors, pitolisant enhances the activity of histaminergic neurons, as well as increasing the signalling of other neurotransmitters in the brain. In a European clinical trial of adult patients with narcolepsy, there was a reduction in the Epworth Sleepiness Scale (ESS) score from pitolisant therapy compared to placebo. The therapeutic effectiveness of pitolisant was comparable to that of [modafinil]. Pitolisant therapy was also effective in treating refractory sleepiness in adolescent patients with narcolepsy, where it decreased ESS score and increased the mean sleep onset latency. Adolescent patients with cataplexy also experienced a slight improvement in the frequency and severity of symptoms ; however, the safety of use in adolescent or paediatric patients have not been established with pitolisant. Commonly marketed under the trade name Wakix, oral pitolisant was approved by the EMA in 2016 for the treatment of narcolepsy with or without cataplexy. FDA approved the use of pitolisant in 2019 for excessive daytime sleepiness (EDS) associated with narcolepsy in adults.
Levofloxacin {u} (Compound) binds {v} (Gene) CYP3A4
CYP3A4 {u} (Gene) is bound by {v} (Compound) Metronidazole
Metronidazole {u} may cause a minor interaction that can limit clinical effects when taken with {v} Pitolisant
Levofloxacin {u} (Compound) causes {v} (Side Effect) Encephalopathy
Encephalopathy {u} (Side Effect) is caused by {v} (Compound) Metronidazole
Metronidazole {u} may cause a minor interaction that can limit clinical effects when taken with {v} Pitolisant
Levofloxacin {u} (Compound) binds {v} (Gene) CYP3A4
CYP3A4 {u} (Gene) is bound by {v} (Compound) Fluconazole
Fluconazole {u} may cause a moderate interaction that could exacerbate diseases when taken with {v} Pitolisant
Levofloxacin {u} (Compound) causes {v} (Side Effect) Encephalopathy
Encephalopathy {u} (Side Effect) is caused by {v} (Compound) Mefloquine
Mefloquine {u} may cause a moderate interaction that could exacerbate diseases when taken with {v} Pitolisant
Levofloxacin {u} (Compound) causes {v} (Side Effect) Coordination abnormal
Coordination abnormal {u} (Side Effect) is caused by {v} (Compound) Bupropion
Bupropion {u} may lead to a major life threatening interaction when taken with {v} Pitolisant
Levofloxacin {u} (Compound) binds {v} (Gene) CYP3A4
CYP3A4 {u} (Gene) is bound by {v} (Compound) Halofantrine
Halofantrine {u} may lead to a major life threatening interaction when taken with {v} Pitolisant
Levofloxacin {u} (Compound) resembles {v} (Compound) Ofloxacin
Ofloxacin {u} may cause a minor interaction that can limit clinical effects when taken with {v} Metronidazole
Metronidazole {u} may cause a minor interaction that can limit clinical effects when taken with {v} Pitolisant
Levofloxacin {u} (Compound) resembles {v} (Compound) Ofloxacin
Ofloxacin {u} may cause a moderate interaction that could exacerbate diseases when taken with {v} Bisacodyl
Bisacodyl {u} may cause a moderate interaction that could exacerbate diseases when taken with {v} Pitolisant
Levofloxacin {u} (Compound) resembles {v} (Compound) Ofloxacin
Ofloxacin {u} may cause a moderate interaction that could exacerbate diseases when taken with {v} Fluconazole
Fluconazole {u} may cause a moderate interaction that could exacerbate diseases when taken with {v} Pitolisant
Levofloxacin {u} (Compound) resembles {v} (Compound) Moxifloxacin
Moxifloxacin {u} may cause a minor interaction that can limit clinical effects when taken with {v} Metronidazole
Metronidazole {u} may cause a minor interaction that can limit clinical effects when taken with {v} Pitolisant
Levofloxacin (Compound) binds CYP3A4 (Gene) and CYP3A4 (Gene) is bound by Metronidazole (Compound) and Metronidazole may cause a minor interaction that can limit clinical effects when taken with Pitolisant
Levofloxacin (Compound) causes Encephalopathy (Side Effect) and Encephalopathy (Side Effect) is caused by Metronidazole (Compound) and Metronidazole may cause a minor interaction that can limit clinical effects when taken with Pitolisant
Levofloxacin (Compound) binds CYP3A4 (Gene) and CYP3A4 (Gene) is bound by Fluconazole (Compound) and Fluconazole may cause a moderate interaction that could exacerbate diseases when taken with Pitolisant
Levofloxacin (Compound) causes Encephalopathy (Side Effect) and Encephalopathy (Side Effect) is caused by Mefloquine (Compound) and Mefloquine may cause a moderate interaction that could exacerbate diseases when taken with Pitolisant
Levofloxacin (Compound) causes Coordination abnormal (Side Effect) and Coordination abnormal (Side Effect) is caused by Bupropion (Compound) and Bupropion may lead to a major life threatening interaction when taken with Pitolisant
Levofloxacin (Compound) binds CYP3A4 (Gene) and CYP3A4 (Gene) is bound by Halofantrine (Compound) and Halofantrine may lead to a major life threatening interaction when taken with Pitolisant
Levofloxacin (Compound) resembles Ofloxacin (Compound) and Ofloxacin may cause a minor interaction that can limit clinical effects when taken with Metronidazole and Metronidazole may cause a minor interaction that can limit clinical effects when taken with Pitolisant
Levofloxacin (Compound) resembles Ofloxacin (Compound) and Ofloxacin may cause a moderate interaction that could exacerbate diseases when taken with Bisacodyl and Bisacodyl may cause a moderate interaction that could exacerbate diseases when taken with Pitolisant
Levofloxacin (Compound) resembles Ofloxacin (Compound) and Ofloxacin may cause a moderate interaction that could exacerbate diseases when taken with Fluconazole and Fluconazole may cause a moderate interaction that could exacerbate diseases when taken with Pitolisant
Levofloxacin (Compound) resembles Moxifloxacin (Compound) and Moxifloxacin may cause a minor interaction that can limit clinical effects when taken with Metronidazole and Metronidazole may cause a minor interaction that can limit clinical effects when taken with Pitolisant