Medically reviewed by Oliinyk Elizabeth Ivanovna, PharmD. Last updated on 2020-04-04
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Hyperlipidemia And Mixed Dyslipidemia
Sections or subsections omitted from the full prescribing information are not listed. Xuniro is indicated as adjunctive therapy to diet to reduce elevated Total-C, LDL-C, ApoB, nonHDLC, and triglycerides and to increase HDL-C in adult patients with primary hyperlipidemia or mixed dyslipidemia. Lipid-altering agents should be used in addition to a diet restricted in saturated fat and cholesterol when response to diet and nonpharmacological interventions alone has been inadequate.
Pediatric Patients With Familial Hypercholesterolemia
Xuniro is indicated as an adjunct to diet to:
- reduce Total-C, LDL-C and ApoB levels in children and adolescents 8 to 17 years of age with heterozygous familial hypercholesterolemia if after an adequate trial of diet therapy the following findings are present: LDL-C > 190 mg/dL, or > 160 mg/dL along with a positive family history of premature cardiovascular disease (CVD) or two or more other CVD risk factors.
- reduce LDL-C, Total-C, nonHDL-C and ApoB in children and adolescents 7 to 17 years of age with homozygous familial hypercholesterolemia, either alone or with other lipid-lowering treatments (e.g., LDL apheresis).
Xuniro is indicated as adjunctive therapy to diet for the treatment of adult patients with hypertriglyceridemia.
Primary Dysbetalipoproteinemia (Type III Hyperlipoproteinemia)
Xuniro is indicated as an adjunct to diet for the treatment of adult patients with primary dysbetalipoproteinemia (Type III Hyperlipoproteinemia).
Adult Patients With Homozygous Familial Hypercholesterolemia
Xuniro is indicated as adjunctive therapy to other lipid-lowering treatments (e.g., LDL apheresis) or alone if such treatments are unavailable to reduce LDLC, TotalC, and ApoB in adult patients with homozygous familial hypercholesterolemia.
Slowing Of The Progression Of Atherosclerosis
Xuniro is indicated as adjunctive therapy to diet to slow the progression of atherosclerosis in adult patients as part of a treatment strategy to lower TotalC and LDLC to target levels.
Primary Prevention Of Cardiovascular Disease
In individuals without clinically evident coronary heart disease but with an increased risk of cardiovascular disease based on age ≥ 50 years old in men and ≥ 60 years old in women, hsCRP ≥ 2 mg/L, and the presence of at least one additional cardiovascular disease risk factor such as hypertension, low HDLC, smoking, or a family history of premature coronary heart disease, Xuniro is indicated to:
- reduce the risk of stroke
- reduce the risk of myocardial infarction
- reduce the risk of arterial revascularization procedures
Limitations Of Use
Xuniro has not been studied in Fredrickson Type I and V dyslipidemias.
General Dosing Information
The dose range for Xuniro in adults is 5 to 40 mg orally once daily. The usual starting dose is 10 to 20 mg once daily. The usual starting dose in adult patients with homozygous familial hypercholesterolemia is 20 mg once daily.
The maximum Xuniro dose of 40 mg should be used only for those patients who have not achieved their LDL-C goal utilizing the 20 mg dose.
Xuniro can be administered as a single dose at any time of day, with or without food. The tablet should be swallowed whole.
When initiating Xuniro therapy or switching from another HMGCoA reductase inhibitor therapy, the appropriate Xuniro starting dose should first be utilized, and only then titrated according to the patientÃ¢â‚¬™s response and individualized goal of therapy.
After initiation or upon titration of Xuniro, lipid levels should be analyzed within 2 to 4 weeks and the dosage adjusted accordingly.
In heterozygous familial hypercholesterolemia, the recommended dose range is 5 to 10 mg orally once daily in patients 8 to less than 10 years of age, and 5 to 20 mg orally once daily in patients 10 to 17 years of age.
In homozygous familial hypercholesterolemia, the recommended dose is 20 mg orally once daily in patients 7 to 17 years of age.
Dosing In Asian Patients
In Asian patients, consider initiation of Xuniro therapy with 5 mg once daily due to increased rosuvastatin plasma concentrations. The increased systemic exposure should be taken into consideration when treating Asian patients not adequately controlled at doses up to 20 mg/day.
Use With Concomitant Therapy
Patients Taking Cyclosporine
The dose of Xuniro should not exceed 5 mg once daily.
Patients Taking Gemfibrozil
Avoid concomitant use of Xuniro with gemfibrozil. If concomitant use cannot be avoided, initiate Xuniro at 5 mg once daily. The dose of Xuniro should not exceed 10 mg once daily.
Patients Taking Atazanavir And Ritonavir, Lopinavir And Ritonavir, Or Simeprevir
Initiate Xuniro therapy with 5 mg once daily. The dose of Xuniro should not exceed 10 mg once daily.
Dosing In Patients With Severe Renal Impairment
For patients with severe renal impairment (CLcr < 30 mL/min/1.73 m²) not on hemodialysis, dosing of Xuniro should be started at 5 mg once daily and not exceed 10 mg once daily.
Xuniro is contraindicated in the following conditions:
- Patients with a known hypersensitivity to any component of this product. Hypersensitivity reactions including rash, pruritus, urticaria, and angioedema have been reported with Xuniro.
- Patients with active liver disease, which may include unexplained persistent elevations of hepatic transaminase levels.
- Lactation. Limited data indicate that Xuniro is present in human milk. Because statins have the potential for serious adverse reactions in nursing infants, women who require Xuniro treatment should not breastfeed their infants.
Included as part of the PRECAUTIONS section.
Skeletal Muscle Effects
Cases of myopathy and rhabdomyolysis with acute renal failure secondary to myoglobinuria have been reported with HMG-CoA reductase inhibitors , including Xuniro. These risks can occur at any dose level, but are increased at the highest dose (40 mg).
Xuniro should be prescribed with caution in patients with predisposing factors for myopathy (e.g., age ≥ 65 years, inadequately treated hypothyroidism, renal impairment).
The risk of myopathy during treatment with Xuniro may be increased with concurrent administration of some other lipid-lowering therapies (fibrates or niacin), gemfibrozil, cyclosporine, atazanavir/ritonavir, lopinavir/ritonavir, or simeprevir. Cases of myopathy, including rhabdomyolysis, have been reported with HMG-CoA reductase inhibitors, including rosuvastatin, coadministered with colchicine, and caution should be exercised when prescribing Xuniro with colchicine.
Xuniro therapy should be discontinued if markedly elevated creatine kinase levels occur or myopathy is diagnosed or suspected. Xuniro therapy should also be temporarily withheld in any patient with an acute, serious condition suggestive of myopathy or predisposing to the development of renal failure secondary to rhabdomyolysis (e.g., sepsis, hypotension, dehydration, major surgery, trauma, severe metabolic, endocrine, and electrolyte disorders, or uncontrolled seizures).
There have been rare reports of immune-mediated necrotizing myopathy (IMNM), an autoimmune myopathy, associated with statin use. IMNM is characterized by: proximal muscle weakness and elevated serum creatine kinase, which persist despite discontinuation of statin treatment; muscle biopsy showing necrotizing myopathy without significant inflammation; improvement with immunosuppressive agents.
All patients should be advised to promptly report to their physician unexplained muscle pain, tenderness, or weakness, particularly if accompanied by malaise or fever or if muscle signs and symptoms persist after discontinuing Xuniro.
Liver Enzyme Abnormalities
It is recommended that liver enzyme tests be performed before the initiation of Xuniro, and if signs or symptoms of liver injury occur.
Increases in serum transaminases [AST (SGOT) or ALT (SGPT)] have been reported with HMGCoA reductase inhibitors, including Xuniro. In most cases, the elevations were transient and resolved or improved on continued therapy or after a brief interruption in therapy. There were two cases of jaundice, for which a relationship to Xuniro therapy could not be determined, which resolved after discontinuation of therapy. There were no cases of liver failure or irreversible liver disease in these trials.
In a pooled analysis of placebo-controlled trials, increases in serum transaminases to > 3 times the upper limit of normal occurred in 1.1% of patients taking Xuniro versus 0.5% of patients treated with placebo.
There have been rare postmarketing reports of fatal and non-fatal hepatic failure in patients taking statins, including rosuvastatin. If serious liver injury with clinical symptoms and/or hyperbilirubinemia or jaundice occurs during treatment with Xuniro, promptly interrupt therapy. If an alternate etiology is not found, do not restart Xuniro.
Xuniro should be used with caution in patients who consume substantial quantities of alcohol and/or have a history of chronic liver disease. Active liver disease, which may include unexplained persistent transaminase elevations, is a contraindication to the use of Xuniro.
Concomitant Coumarin Anticoagulants
Caution should be exercised when anticoagulants are given in conjunction with Xuniro because of its potentiation of the effect of coumarin-type anticoagulants in prolonging the prothrombin time/INR. In patients taking coumarin anticoagulants and Xuniro concomitantly, INR should be determined before starting Xuniro and frequently enough during early therapy to ensure that no significant alteration of INR occurs.
Proteinuria And Hematuria
In the Xuniro clinical trial program, dipstick-positive proteinuria and microscopic hematuria were observed among Xuniro treated patients. These findings were more frequent in patients taking Xuniro 40 mg, when compared to lower doses of Xuniro or comparator HMGCoA reductase inhibitors, though it was generally transient and was not associated with worsening renal function. Although the clinical significance of this finding is unknown, a dose reduction should be considered for patients on Xuniro therapy with unexplained persistent proteinuria and/or hematuria during routine urinalysis testing.
Increases in HbA1c and fasting serum glucose levels have been reported with HMGCoA reductase inhibitors, including Xuniro. Based on clinical trial data with Xuniro, in some instances these increases may exceed the threshold for the diagnosis of diabetes mellitus.
Although clinical studies have shown that Xuniro alone does not reduce basal plasma cortisol concentration or impair adrenal reserve, caution should be exercised if Xuniro is administered concomitantly with drugs that may decrease the levels or activity of endogenous steroid hormones such as ketoconazole, spironolactone, and cimetidine.
Patient Counseling Information
Advise the patient to read the FDA-approved patient labeling (PATIENT INFORMATION).
Patients should be instructed not to take 2 doses of Xuniro within 12 hours of each other.
Skeletal Muscle Effects
Patients should be advised to report promptly unexplained muscle pain, tenderness, or weakness, particularly if accompanied by malaise or fever or if these muscle signs or symptoms persist after discontinuing Xuniro.
Concomitant Use Of Antacids
When taking Xuniro with an aluminum and magnesium hydroxide combination antacid, the antacid should be taken at least 2 hours after Xuniro administration.
Advise females of reproductive potential of the risk to a fetus, to use effective contraception during treatment, and to inform their healthcare provider of a known or suspected pregnancy.
Advise women not to breastfeed during treatment with Xuniro.
It is recommended that liver enzyme tests be performed before the initiation of Xuniro and if signs or symptoms of liver injury occur. All patients treated with Xuniro should be advised to promptly report any symptoms that may indicate liver injury, including fatigue, anorexia, right upper abdominal discomfort, dark urine or jaundice.
Carcinogenesis Mutagenesis, Impairment Of Fertility
In a 104-week carcinogenicity study in rats at dose levels of 2, 20, 60, or 80 mg/kg/day by oral gavage, the incidence of uterine stromal polyps was significantly increased in females at 80 mg/kg/day at systemic exposure 20 times the human exposure at 40 mg/day based on AUC. Increased incidence of polyps was not seen at lower doses.
In a 107-week carcinogenicity study in mice given 10, 60, or 200 mg/kg/day by oral gavage, an increased incidence of hepatocellular adenoma/carcinoma was observed at 200 mg/kg/day at systemic exposures 20 times the human exposure at 40 mg/day based on AUC. An increased incidence of hepatocellular tumors was not seen at lower doses.
Rosuvastatin was not mutagenic or clastogenic with or without metabolic activation in the Ames test with Salmonella typhimurium and Escherichia coli, the mouse lymphoma assay, and the chromosomal aberration assay in Chinese hamster lung cells. Rosuvastatin was negative in the in vivo mouse micronucleus test.
In rat fertility studies with oral gavage doses of 5, 15, 50 mg/kg/day, males were treated for 9 weeks prior to and throughout mating and females were treated 2 weeks prior to mating and throughout mating until gestation day 7. No adverse effect on fertility was observed at 50 mg/kg/day (systemic exposures up to 10 times the human exposure at 40 mg/day based on AUC). In testicles of dogs treated with rosuvastatin at 30 mg/kg/day for one month, spermatidic giant cells were seen. Spermatidic giant cells were observed in monkeys after 6month treatment at 30 mg/kg/day in addition to vacuolation of seminiferous tubular epithelium. Exposures in the dog were 20 times and in the monkey 10 times the human exposure at 40 mg/day based on body surface area. Similar findings have been seen with other drugs in this class.
Use In Specific Populations
Xuniro is contraindicated for use in pregnant women since safety in pregnant women has not been established and there is no apparent benefit to therapy with Xuniro during pregnancy. Because HMG-CoA reductase inhibitors decrease cholesterol synthesis and possibly the synthesis of other biologically active substances derived from cholesterol, Xuniro may cause fetal harm when administered to pregnant women. Xuniro should be discontinued as soon as pregnancy is recognized. Limited published data on the use of rosuvastatin are insufficient to determine a drug-associated risk of major congenital malformations or miscarriage. In animal reproduction studies, there were no adverse developmental effects with oral administration of rosuvastatin during organogenesis at systemic exposures equivalent to a maximum recommended human dose (MRHD) of 40 mg/day in rats or rabbits (based on AUC and body surface area, respectively). In rats and rabbits, decreased pup/fetal survival occurred at 12 times and equivalent, respectively, to the MRHD of 40 mg/day.
The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.
Limited published data on rosuvastatin have not shown an increased risk of major congenital malformations or miscarriage. Rare reports of congenital anomalies have been received following intrauterine exposure to other statins. In a review of approximately 100 prospectively followed pregnancies in women exposed to simvastatin or lovastatin, the incidences of congenital anomalies, spontaneous abortions, and fetal deaths/stillbirths did not exceed what would be expected in the general population. The number of cases is adequate to exclude a ≥ 3 to 4-fold increase in congenital anomalies over the background incidence. In 89% of the prospectively followed pregnancies, drug treatment was initiated prior to pregnancy and was discontinued at some point in the first trimester when pregnancy was identified.
Rosuvastatin crosses the placenta in rats and rabbits and is found in fetal tissue and amniotic fluid at 3% and 20%, respectively, of the maternal plasma concentration following a single 25 mg/kg oral gavage dose on gestation day 16 in rats. A higher fetal tissue distribution (25% maternal plasma concentration) was observed in rabbits after a single oral gavage dose of 1 mg/kg on gestation day 18.
Rosuvastatin administration did not indicate a teratogenic effect in rats at ≤ 25 mg/kg/day or in rabbits ≤ 3 mg/kg/day (doses equivalent to the MRHD of 40 mg/day based on AUC and body surface area, respectively).
In female rats given 5, 15 and 50 mg/kg/day before mating and continuing through to gestation day 7 resulted in decreased fetal body weight (female pups) and delayed ossification at 50 mg/kg/day (10 times the human exposure at the MRHD dose of 40 mg/day based on AUC).
In pregnant rats given 2, 10 and 50 mg/kg/day of rosuvastatin from gestation day 7 through lactation day 21 (weaning), decreased pup survival occurred at 50 mg/kg/day (dose equivalent to 12 times the MRHD of 40 mg/day based body surface area).
In pregnant rabbits given 0.3, 1, and 3 mg/kg/day of rosuvastatin from gestation day 6 to day 18, decreased fetal viability and maternal mortality was observed at 3 mg/kg/day (dose equivalent to the MRHD of 40 mg/day based on body surface area).
Rosuvastatin use is contraindicated during breastfeeding. Limited data indicate that Xuniro is present in human milk. There is no available information on the effects of the drug on the breastfed infant or the effects of the drug on milk production. Because of the potential for serious adverse reactions in a breastfed infant, advise patients that breastfeeding is not recommended during treatment with Xuniro.
Females And Males Of Reproductive Potential
Xuniro may cause fetal harm when administered to a pregnant woman. Advise females of reproductive potential to use effective contraception during treatment with Xuniro.
In children and adolescents 8 to 17 years of age with heterozygous familial hypercholesterolemia, the safety and effectiveness of Xuniro as an adjunct to diet to reduce total cholesterol, LDL-C, and ApoB levels when, after an adequate trial of diet therapy, LDL-C exceeds 190 mg/dL or when LDL-C exceeds 160 mg/dL and there is a positive family history of premature CVD or two or more other CVD risk factors, were established in one controlled trial and in one open-label, uncontrolled trial. The long-term efficacy of Xuniro therapy initiated in childhood to reduce morbidity and mortality in adulthood has not been established.
The safety and effectiveness of Xuniro in children and adolescents 10 to 17 years of age with heterozygous familial hypercholesterolemia were evaluated in a controlled clinical trial of 12 weeks duration followed by 40 weeks of open-label exposure. Patients treated with 5 mg, 10 mg, and 20 mg daily Xuniro had an adverse experience profile generally similar to that of patients treated with placebo. There was no detectable effect of Xuniro on growth, weight, BMI (body mass index), or sexual maturation in children and adolescents (10 to 17 years of age).
Xuniro has not been studied in controlled clinical trials involving prepubertal patients or patients younger than 10 years of age with heterozygous familial hypercholesterolemia. However, the safety and effectiveness of Xuniro were evaluated in a two year open-label uncontrolled trial that included children and adolescents 8 to 17 years of age with heterozygous familial hypercholesterolemia. The safety and efficacy of Xuniro in lowering LDL-C appeared generally consistent with that observed for adult patients, despite limitations of the uncontrolled study design.
Children and adolescents 7 to 15 years of age with homozygous familial hypercholesterolemia were studied in a 6-week randomized, placebo-controlled, cross-over study with Xuniro 20 mg once daily followed by 12 weeks of open-label treatment. In general, the safety profile in this trial was consistent with that of the previously established safety profile in adults.
Although not all adverse reactions identified in the adult population have been observed in clinical trials of children and adolescent patients, the same warnings and precautions for adults should be considered for children and adolescents. Adolescent females should be counseled on appropriate contraceptive methods while on Xuniro therapy.
Of the 10,275 patients in clinical studies with Xuniro, 3159 (31%) were 65 years and older, and 698 (6.8%) were 75 years and older. No overall differences in safety or effectiveness were observed between these subjects and younger subjects, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out.
Elderly patients are at higher risk of myopathy and Xuniro should be prescribed with caution in the elderly.
Rosuvastatin exposure is not influenced by mild to moderate renal impairment (CLcr ≥ 30 mL/min/1.73 m²). Exposure to rosuvastatin is increased to a clinically significant extent in patients with severe renal impairment (CLcr < 30 mL/min/1.73 m²) who are not receiving hemodialysis and dose adjustment is required.
Xuniro is contraindicated in patients with active liver disease, which may include unexplained persistent elevations of hepatic transaminase levels. Chronic alcohol liver disease is known to increase rosuvastatin exposure; Xuniro should be used with caution in these patients.
Pharmacokinetic studies have demonstrated an approximate 2-fold increase in median exposure to rosuvastatin in Asian subjects when compared with Caucasian controls. Xuniro dosage should be adjusted in Asian patients.
The following serious adverse reactions are discussed in greater detail in other sections of the label:
- Rhabdomyolysis with myoglobinuria and acute renal failure and myopathy (including myositis)
- Liver enzyme abnormalities
Clinical Studies Experience
Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in clinical practice.
In the Xuniro controlled clinical trials database (placebo or active-controlled) of 5394 patients with a mean treatment duration of 15 weeks, 1.4% of patients discontinued due to adverse reactions. The most common adverse reactions that led to treatment discontinuation were:
- abdominal pain
The most commonly reported adverse reactions (incidence ≥ 2%) in the Xuniro controlled clinical trial database of 5394 patients were:
- abdominal pain
Adverse reactions reported in ≥ 2% of patients in placebo-controlled clinical studies and at a rate greater than placebo are shown in Table 1. These studies had a treatment duration of up to 12 weeks.
Table 1: Adverse Reactions Reported in ≥ 2% of Patients Treated with Xuniro and > Placebo in Placebo-Controlled Trials (% of Patients )
|Adverse Reactions||Xuniro 5 mg |
|Xuniro 10 mg |
|Xuniro 20 mg |
|Xuniro 40 mg |
|Total Xuniro 5 mg D40 mg |
|*Adverse reactions by COSTART preferred term.|
Other adverse reactions reported in clinical studies were abdominal pain, dizziness, hypersensitivity (including rash, pruritus, urticaria, and angioedema) and pancreatitis. The following laboratory abnormalities have also been reported: dipstick-positive proteinuria and microscopic hematuria ; elevated creatine phosphokinase, transaminases, glucose, glutamyl transpeptidase, alkaline phosphatase, and bilirubin; and thyroid function abnormalities.
In the METEOR study, involving 981 participants treated with rosuvastatin 40 mg (n=700) or placebo (n=281) with a mean treatment duration of 1.7 years, 5.6% of subjects treated with Xuniro versus 2.8% of placebo-treated subjects discontinued due to adverse reactions. The most common adverse reactions that led to treatment discontinuation were: myalgia, hepatic enzyme increased, headache, and nausea.
Adverse reactions reported in ≥ 2% of patients and at a rate greater than placebo are shown in Table 2.
Table 2: Adverse Reactions Reported in ≥ 2% of Patients Treated with Xuniro and > Placebo in the METEOR Trial (% of Patients )
|Adverse Reactions||Xuniro 40 mg |
|ALT > 3x ULN†||2.2||0.7|
|*Adverse reactions by MedDRA preferred term. |
†Frequency recorded as abnormal laboratory value
In the JUPITER study, 17,802 participants were treated with rosuvastatin 20 mg (n=8901) or placebo (n=8901) for a mean duration of 2 years. A higher percentage of rosuvastatin-treated patients versus placebo-treated patients, 6.6% and 6.2%, respectively, discontinued study medication due to an adverse event, irrespective of treatment causality. Myalgia was the most common adverse reaction that led to treatment discontinuation.
In JUPITER, there was a significantly higher frequency of diabetes mellitus reported in patients taking rosuvastatin (2.8%) versus patients taking placebo (2.3%). Mean HbA1c was significantly increased by 0.1% in rosuvastatin-treated patients compared to placebo-treated patients. The number of patients with a HbA1c > 6.5% at the end of the trial was significantly higher in rosuvastatin-treated versus placebotreated patients.
Adverse reactions reported in ≥ 2% of patients and at a rate greater than placebo are shown in Table 3.
Table 3: Adverse Reactions* Reported in ≥ 2% of Patients Treated with Xuniro and > Placebo in the JUPITER Trial (% of Patients )
|Adverse Reactions||Xuniro 20 mg |
|* Treatment-emergent adverse reactions by MedDRA preferred term.|
Pediatric Patients With Heterozygous Familial Hypercholesterolemia
In a 12-week controlled study in boys and postmenarcheal girls 10 to 17 years of age with heterozygous familial hypercholesterolemia with Xuniro 5 to 20 mg daily , elevations in serum creatine phosphokinase (CK) > 10 x ULN were observed more frequently in rosuvastatin compared with placebo-treated children. Four of 130 (3%) children treated with rosuvastatin (2 treated with 10 mg and 2 treated with 20 mg) had increased CK > 10 x ULN, compared to 0 of 46 children on placebo.
The following adverse reactions have been identified during postapproval use of Xuniro: arthralgia, fatal and non-fatal hepatic failure, hepatitis, jaundice, thrombocytopenia, depression, sleep disorders (including insomnia and nightmares), peripheral neuropathy and gynecomastia. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
There have been rare reports of immune-mediated necrotizing myopathy associated with statin use.
There have been rare postmarketing reports of cognitive impairment (e.g., memory loss, forgetfulness, amnesia, memory impairment, confusion) associated with statin use. These cognitive issues have been reported for all statins. The reports are generally nonserious, and reversible upon statin discontinuation, with variable times to symptom onset (1 day to years) and symptom resolution (median of 3 weeks).
There is no specific treatment in the event of overdose. In the event of overdose, the patient should be treated symptomatically and supportive measures instituted as required. Hemodialysis does not significantly enhance clearance of rosuvastatin.
In clinical pharmacology studies in man, peak plasma concentrations of rosuvastatin were reached 3 to 5 hours following oral dosing. Both Cmax and AUC increased in approximate proportion to Xuniro dose. The absolute bioavailability of rosuvastatin is approximately 20%.
Administration of Xuniro with food did not affect the AUC of rosuvastatin.
The AUC of rosuvastatin does not differ following evening or morning drug administration.
Mean volume of distribution at steady-state of rosuvastatin is approximately 134 liters. Rosuvastatin is 88% bound to plasma proteins, mostly albumin. This binding is reversible and independent of plasma concentrations.
Rosuvastatin is not extensively metabolized; approximately 10% of a radiolabeled dose is recovered as metabolite. The major metabolite is N-desmethyl rosuvastatin, which is formed principally by cytochrome P450 \ 2C9, and in vitro studies have demonstrated that N-desmethyl rosuvastatin has approximately one-sixth to one-half the HMGCoA reductase inhibitory activity of the parent compound. Overall, greater than 90% of active plasma HMGCoA reductase inhibitory activity is accounted for by the parent compound.
Following oral administration, rosuvastatin and its metabolites are primarily excreted in the feces (90%). The elimination half-life (t½) of rosuvastatin is approximately 19 hours.
After an intravenous dose, approximately 28% of total body clearance was via the renal route, and 72% by the hepatic route.