Atorvastatin-Teva, 10 mg 30 pcs
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Pharmacotherapeutic group: hypolipidemic drug – HMG-CoA reductase inhibitor
ATC code: C10AA05.
Pharmacological properties
Pharmacodynamics
Atorvastatin is a selective competitive inhibitor of HMG-CoA reductase, the enzyme that determines the marginal rate of cholesterol biosynthesis, responsible for converting 3-hydroxy-3-methyl-glutaryl-coenzyme A to mevalonate, a precursor of sterols, including cholesterol. In the liver, triglycerides and cholesterol are incorporated into very low density lipoproteins (VLDL), entering the blood plasma and being transported to peripheral tissues. Low-density lipoproteins (LDL) are formed from LDL, which are catabolized mainly through interaction with high-affinity LDL receptors.
Atorvastatin reduces plasma levels of cholesterol and lipoproteins by inhibiting HMG-CoA reductase and cholesterol synthesis in the liver and by increasing the number of “hepatic” LDL receptors on the cell surface, increasing LDL capture and catabolism.
Atorvastatin reduces LDL production and LDL particles. Atorvastatin causes a marked and persistent increase in LDL receptor activity combined with favorable changes in the quality of circulating LDL particles.
Dose-dependently reduces LDL levels in patients with homozygous hereditary hypercholesterolemia who are resistant to therapy with other hypolipidemic agents.
Dose/effect studies have shown that atorvastatin reduces total cholesterol (by 30-46%), LDL cholesterol (by 41-61%), apolipoprotein B (by 34-50%) and triglycerides (by 14-33%), while causing an increase, to varying degrees, in HDL cholesterol and apolipoprotein A levels. These results were similar in patients with heterozygous familial hypercholesterolemia, nonfamilial forms of hypercholesterolemia, and mixed hyperlipidemia, including patients with insulin-independent diabetes.
The risk of cardiovascular disease and, therefore, the risk of death are reduced due to decreased levels of total cholesterol, LDL cholesterol and apolipoprotein B. Studies on the effect of atorvastatin on cardiovascular morbidity and mortality have not yet been completed.
There have been no differences in safety, efficacy or achievement of hypolipidemic therapy goals in elderly patients compared to the general population when using the drug.
Pharmacokinetics
Intake. Atorvastatin is rapidly absorbed into the blood after oral administration. Maximal concentration (Сmax) in plasma is reached within 1-2 hours, Сmax in women is 20% higher, area on curve “concentration-time” (AUC) is 10% lower; Сmax in patients with alcoholic liver cirrhosis is 16 times higher, AUC – 11 times higher. Food intake slightly reduces speed and duration of drug absorption (by 25% and 9% respectively), but cholesterol decrease is similar to that of atorvastatin without food. Absolute bioavailability of atorvastatin is approximately 12%, systemic bioavailability determining inhibitory activity against HMG-CoA reductase – 30%. Low systemic bioavailability is due to presystemic metabolism in the gastrointestinal mucosa and during “first passage” through the liver.
Distribution. The mean volume of distribution of atorvastatin is approximately 381 liters. The binding to plasma proteins is 98%.
Metabolism. Elimation. Atorvastatin is excreted primarily with bile after hepatic and/or extrahepatic metabolism (it is not subjected to marked intestinal-hepatic recirculation). The elimination half-life is 14 hours. Inhibitory activity against HMG-CoA reductase lasts about 20-30 hours due to the presence of active metabolites. Less than 2% of the oral dose is detected in the urine. It is not excreted during hemodialysis.
Indications
Active ingredient
Composition
1 tablet contains:
the active ingredient atorvastatin calcium (converted to atorvastatin) 10.36 mg (10 mg) / 20.72 mg (20 mg) / 41.44 mg (40 mg) / 82.88 mg (80 mg); excipients: 94.94/189.88/379.76/759.52 mg lactose monohydrate; 4.00/ 8.00/16.00/32.00 mg povidone K-30; Eudragite E100 (butyl methacrylate, dimethylaminoethyl methacrylate and methyl methacrylate copolymer 1:2:1) 1.50/3.00/6.00/12.00 mg; alpha-tocopherol macrogol succinate 3.00/6.00/12.00/24.00 mg; croscarmellose sodium 5.00/10.00/20.00/40.00 mg; sodium stearyl fumarate 1.20/2.40/4.80/9.60 mg; Opadray YS-1R-7003 (titanium dioxide 0.9375/1.8750/3.7500/7.500 mg; hypromellose-2910 3cP (E464) 0.8963/1.7926/3.5852/7.1704 mg; Hypromelose-2910 5cP (E464) 0.8963/1.7926/3.5852/7.1704 mg; macrogol-400 0.240/0.480/0.960/1.920 mg; polysorbate-80 0.030/0.060/0.120/0.240 mg).
How to take, the dosage
The usual starting dose is 10 mg once daily. The dose varies from 10 to 80 mg/day. The drug can be taken at any time of the day once a day regardless of meals. Doses should be selected individually, taking into account the initial LDL cholesterol level, the purpose of therapy and patient’s response to treatment. At the beginning and/or during dose increase of Atorvastatin-Teva it is necessary to monitor plasma lipid levels every 2-4 weeks and adjust the dose accordingly.
Dose adjustments should be made at intervals of at least 4 weeks. The maximum daily dose is 80 mg.
For patients with established coronary heart disease (CHD) and other patients at high risk of cardiovascular complications, the following lipid level adjustment goals are recommended: LDL cholesterol less than 3.0 mmol/L (or less than 115 mg/dL) and total cholesterol less than 5.0 mmol/L (or less than 190 mg/dL).
Primary hypercholesterolemia and combined (mixed) hyperlipidemia
In most patients the necessary control of lipid levels is provided by taking 10 mg of Atorvastatin-Teva once daily. Significant therapeutic effect is usually observed after 4 weeks. With long-term treatment this effect is maintained.
Heterozygous familial hypercholesterolemia
The treatment of patients should be started with administration of 10 mg of Atorvastatin-Teva daily. Making individual dose adjustments every 4 weeks, the dose should be brought to 40 mg/day. After that, the dose can be increased to a maximum level of 80 mg/day, or a combined prescription of 40 mg Atorvastatin-Teva and bile acid sequestrant can be used.
Homozygous familial hypercholesterolemia
Prescribe in a dose of 80 mg once daily.
In patients with renal impairment
Kidney disease does not affect the plasma concentration of atorvastatin or the degree of lipid reduction with its use; Therefore, no dose adjustment is required in patients with renal disease.
In patients with hepatic impairment
Hepatic impairment may require dose reduction or discontinuation of the drug (see section “Special Precautions”).
Interaction
Drug effects on the effects of atorvastatin
. The risk of myopathy during treatment with HMG-CoA reductase inhibitors increases with concomitant use with cyclosporine, fibrates, macrolides (including erythromycin), azole antifungal agents or nicotinic acid.
In some rare cases, these combinations may cause rhabdomyolysis accompanied by renal failure. In this regard, a careful assessment of the ratio of possible risk to expected benefits of the combined treatment is necessary (see section “Special indications”).
Inhibitors of CYP3A4 isoenzyme
Atorvastatin metabolism is mediated by CYP3A4 isoenzyme. In concurrent use of atorvastatin with CYP3A4 isoenzyme inhibitors (e.g. cyclosporine, macrolide antibiotics such as erythromycin and clarithromycin, nefazodone, azole antifungal agents such as itraconazole and HIV protease inhibitors) there may be drug interactions. In combined use of the drugs increased plasma concentrations of atorvastatin may be observed.
Concomitant use with drugs that reduce the concentration of endogenous steroid hormones (including cimetidine, ketoconazole, spironolactone) increases the risk of reduction of endogenous steroid hormones.
OATP1B1 transport protein inhibitors
Atorvastatin and its metabolites are substrates for the OATP1B1 transport protein. Inhibitors of OATP1B1 transport protein (e.g., cyclosporine) may increase the bioavailability of atorvastatin.
Itraconazole
The simultaneous use of atorvastatin and itraconazole showed an increase in AUC to three times greater than normal.
Protease inhibitors
. Concomitant use of atorvastatin with protease inhibitors known as CYP3A4 isoenzyme inhibitors was accompanied by an increase in plasma concentration of atorvastatin.
Grapefruit juice
. Grapefruit juice contains at least one ingredient that is an inhibitor of the CYP3A4 isoenzyme and may cause an increase in plasma concentrations of those drugs that are metabolized by the CYP3A4 isoenzyme. Daily consumption of 240 ml of grapefruit juice increased AUC of atorvastatin by 37% and decreased AUC of active orthohydroxy metabolite by 20.4%. Consumption of large amounts of grapefruit juice (more than 1.2 liters per day for 5 days) increased AUC of atorvastatin by 2.5 times, and AUC of active HMG-CoA reductase inhibitors (atorvastatin + its metabolites) – by 1.3 times. In this regard, consumption of large amounts of grapefruit juice during treatment with atorvastatin is not recommended.
Inductors of CYP3A4 isoenzyme
. Concomitant use of atorvastatin with drugs inducing CYP3A4 isoenzyme (rifampicin, phenazone, efavirenz, preparations of St. John’s Wort) may significantly reduce plasma concentration of atorvastatin. Mechanism of interaction with atorvastatin and other substrates of CYP3A4 isoenzyme is unknown; however, the possibility of these interactions should be considered when using drugs with low therapeutic index – in particular antiarrhythmic agents of class III, such as amiodarone.
Ezetemibe, fusidic acid
The risk of musculoskeletal adverse effects, including rhabdomyolysis, increases with concomitant use.
Hemfibrozil/fibrates
The risk of atorvastatin-induced myopathy may increase with concomitant use of fibrates. In vitro studies suggest that gemfibrozil may also interact with atorvastatin by inhibiting its glucuronidation, which may cause increased plasma concentrations of atorvastatin (see section “Cautions”).
Colestipol
When concomitant use with colestipol a decrease in plasma concentrations of atorvastatin by approximately 25% was noted. However, when combining atorvastatin and colestipol, the effect on lipids was more pronounced than when using each of these drugs separately.
Antacids
. Concomitant oral administration of atorvastatin and suspension containing magnesium and aluminum hydroxide decreased plasma concentrations of atorvastatin by approximately 35%; however, LDL concentrations were not altered.
Phenazone
. When used concomitantly, atorvastatin does not affect the pharmacokinetics of phenazone, so it can be assumed that interactions with other drugs that are metabolized by the same cytochrome P450 isoenzymes are not expected.
Cimetidine
A study of concomitant use of cimetidine and atorvastatin showed no significant interaction between these drugs.
Amlodipine
No changes in equilibrium atorvastatin were detected when 80 mg atorvastatin and 10 mg amlodipine were used concomitantly.
Others
No clinically significant adverse interactions of atorvastatin and hypotensive agents were observed.
Atorvastatin had no clinically significant effect on plasma concentrations of terfenadine, which is metabolized by CYP3A4 isoenzyme. Therefore, it seems unlikely that atorvastatin can significantly affect pharmacokinetic parameters of other drugs that are metabolized by CYP3A4 isoenzyme.
Table 1. The effect of drugs on the pharmacokinetics of atorvastatin .When concomitant use
Drug used concomitantly and dosing regimen
Atorvastatin
Dose (mg)
Change
AUC
Clinical guidelines
Tipranavir 500 mg 2 times daily / Ritonavir 200 mg 2 times daily for 8 days (days 14-21)
40 mg daily 1
10 mg daily 20
9.4-fold increase
In cases where atorvastatin use is necessary, the dose of 10 mg of atorvastatin per day should not be exceeded. Patients require medical monitoring.
Cyclosporine 5.2 mg/kg/day – constant dose
10 mg once daily
8.7-fold increase
Lopinavir 400 mg 2 times daily / Ritonavir 2 times daily for 14 days
20 mg once daily for 4 days
5.9-fold increase
In cases where atorvastatin use is necessary, atorvastatin dose reduction is required. If the dose of atorvastatin exceeds 20 mg per day, medical monitoring is required.
Clarithromycin 500 mg 2 times daily for 9 days
80 mg once daily for 8 days
4.4-fold increase
Sakvinavir 400 mg 2 times daily / Ritonavir 300 mg 2 times daily days 5-7, 400 mg from day 8, days 5 to 18 30 minutes after atorvastatin
40 mg 1 time daily for 4 days
/p>
A 3.9-fold increase
In cases where atorvastatin use is necessary, a reduction in the atorvastatin dose is required. If the dose of atorvastatin exceeds 40 mg per day, medical monitoring is required.
Darunavir 300 mg 2 times daily / Ritonavir 100 mg 2 times daily for 9 days
10 mg once daily for 4 days
A 3.3-fold increase
Itraconazole 200 mg once daily for 4 days
/p>
40 mg, once daily
3.3-fold increase
Fosamprenavir 700 mg 2 times daily / Ritonavir 100 mg 2 times daily for 14 days
10 mg once daily for 4 days
Increased 2.5 times
Fosamprenavir 1400 mg 2 times daily for 14 days
10 mg once daily for 4 days
/p>
Increased 2.3 times
Nelfinavir 1250 mg 2 times daily for 14 days
10 mg once daily for 28 days
1.7-fold increase
No dose adjustment required
Grapefruit juice, 240 ml once daily
/p>
40 mg, single dose
37% increase
The consumption of significant amounts of grapefruit juice with concomitant use of atorvastatin is not recommended
Diltiazem 240 mg once daily for 28 days
/p>
40 mg, single dose
51% increase
Medical supervision is required when prescribing or adjusting diltiazem dose
Erythromycin 500 mg 4 times daily for 7 days
10 mg, single dose
33% increase
Atorvastatin maximum dose adjustment required and medical monitoring
Amlodipine 10 mg, single dose
80 mg, single dose
An 18% increase
Dose adjustment not required
Cimetidine 300 mg 4 times daily for 2 weeks
10 mg once daily for 4 weeks
Less than 1% reduction
Dose adjustment is not required.
Suspension containing magnesium and aluminum 30 ml 4 times daily for 2 weeks
10 mg once daily for 4 weeks
Dose adjustment is not necessary.
Efavirenz 600 mg once daily for 14 days
10 mg for 3 days
41% reduction
No dose adjustment required.
Rifampicin 600 mg once daily for 7 days (concomitant administration)
/p>
40 mg, single dose
30% increase
If concomitant administration with rifampicin cannot be avoided, medical monitoring is required
Rifampicin 600 mg once daily for 5 days (split doses)
40 mg, single dose
80% reduction
Hemfibrozil 600 mg 2 times daily for 7 days
40 mg, single dose
35% increase
The initial dose should be reduced and medical monitoring is required.
Fenofibrate 160 mg once daily for 7 days
./p>
40 mg, once daily
A 3% increase
The initial dose should be reduced and medical monitoring is required
Special Instructions
Before using Atorvastatin-Teva, the patient should start a standard hypocholesterolemic diet, which should be maintained during the entire period of treatment.
The use of HMG-CoA reductase inhibitors to reduce blood lipid concentrations may lead to changes in biochemical parameters reflecting the functional state of the liver. Liver function should be monitored before the start of therapy, at 6 weeks, 12 weeks after the start of atorvastatin administration and after each dose increase, as well as periodically, e.g., every 6 months. Elevated serum hepatic transaminases may be observed during therapy with Atorvastatin-Teva. Patients with increased hepatic transaminases should be monitored until their activity decreases. In case of persistent increase in activity of “hepatic” transaminases to the level exceeding IUF by more than 3 times, it is recommended to reduce the dose of Atorvastatin-Teva or discontinue treatment.
Atorvastatin-Teva should be used with caution in patients who abuse alcohol and/or have a history of liver disease. Active liver disease or persistent increase in the activity of “hepatic” transaminases of unknown genesis are contraindications to the use of Atorvastatin-Teva.
The treatment with Atorvastatin-Teva, as well as other HMG-CoA reductase inhibitors, may cause myopathy. The diagnosis of myopathy should be considered in patients with widespread myalgia or muscle weakness and/or a marked increase in CPK activity (more than 10 times that of HGH). Patients should be warned to inform their physician immediately of unexplained muscle pain or weakness if accompanied by malaise or fever. Atorvastatin-Teva should not be started if baseline CPK level is 5 times higher than IGN (repeat in 5-7 days). In the course of therapy, if CPK level is more than 5 times of IGN or in the presence of confirmed or suspected myopathy, Atorvastatin-Teva should be interrupted with possible resumption of therapy when CPK activity decreases. The risk of myopathy during treatment with other drugs of this class was increased with concomitant use of cyclosporine, clarithromycin, delavirdine, stiripentol, ketoconazole, itraconazole, protease inhibitors, fibrates, erythromycin, nicotinic acid or azole antifungals. If the patient is receiving therapy with these drugs or there is a need for their use, it is required to adjust the dose of Atorvastatin-Teva.
The simultaneous use of Atorvastatin-Teva and fusidic acid is not recommended. If it is necessary to use fusidic acid, therapy with Atorvastatin-Teva should be temporarily discontinued.
The CPK activity must be determined before starting therapy with Atorvastatin-Teva in patients with renal impairment, hypothyroidism, congenital skeletal muscle disease, toxicity with statins or fibrates, history of liver disease, alcoholism, over age 70.
When using Atorvastatin-Teva in combination with fibrates, erythromycin, immunosuppressive agents, azole antifungal agents or nicotinic acid in lipid-lowering doses (more than 1 g per day), the possible risk and expected benefits of treatment should be carefully evaluated. During therapy with Atorvastatin-Teva it is necessary to monitor the appearance of complaints in patients about muscle pain or weakness, especially during the first months of treatment and during periods of increasing the dose of any drug. In such situations, periodic determination of CPK activity is recommended.
Atorvastatin-Teva, like other drugs of this class, has described cases of rhabdomyolysis with acute renal failure due to myoglobinuria. Therapy with Atorvastatin-Teva should be temporarily discontinued or completely stopped if there are signs of myopathy or if there are risk factors of renal failure with rhabdomyolysis (for example, severe acute infection, arterial hypotension, extensive surgery and trauma, severe metabolic, endocrine and electrolyte disorders, uncontrolled convulsions).
There have been reports of interstitial lung disease (ILD) in patients treated with statins for a long time, manifested by cough, dyspnea and deterioration of general condition. In case of CHD development, therapy with Atorvastatin-Teva should be discontinued.
Influence on driving and operating machinery
There have been no reports of adverse effects of Atorvastatin on driving and operating machinery.
Contraindications
With caution
. Alcohol abuse, history of liver disease, severe electrolyte balance disorders, endocrine and metabolic disorders, arterial hypotension, severe acute infections (sepsis), uncontrolled epilepsy, extensive surgery, trauma, skeletal muscle diseases.
Side effects
The frequency of side effects is classified according to the recommendations of the World Health Organization: very common – at least 10%; common – at least 1%, but less than 10%; infrequent – at least 0.1%, but less than 1%; rare – at least 0.01%, but less than 0.1%; very rare (including isolated cases) – less than 0.01%; frequency unknown – adverse reactions with unknown frequency.
With the blood and lymphatic system: rare – thrombocytopenia.
In the immune system: often – allergic reactions; very rare – angioedema; anaphylactic shock.
Nervous system: frequent – headache; infrequent – dizziness, paresthesia, hypoesthesia, amnesia, taste disturbance, insomnia, “nightmares” dreams; rare – peripheral neuropathy; frequency unknown – depression, memory loss or decline, depression, sleep disturbance.
Overlooking organ: infrequent – decreased clarity of vision; rarely – impairment of visual perception.
Hearing organ and labyrinth disorders: infrequent – “noise” in the ears, very rare – hearing loss.
As to the respiratory system, chest and mediastinum organs: frequent – nasopharyngitis, nasal bleeding, pain in the pharyngeal-larynx area; frequency unknown – interstitial lung disease.
Gastrointestinal disorders: frequently – nausea, flatulence, constipation, dyspepsia, diarrhea; infrequently – belching, vomiting, abdominal pain, pancreatitis.
Hepatic and biliary tract disorders: infrequent – hepatitis; rarely – cholestasis; very rare – liver failure.
Skin and subcutaneous tissue disorders: infrequent alopecia, skin rash, pruritus, urticaria; rarely – bullous dermatitis, erythema multiforme; very rare – Stevens-Johnson syndrome, toxic epidermal necrolysis.
Skeletal-muscular system and connective tissue: Frequent – myalgia, arthralgia, pain in the extremities, muscle spasm, back pain, joint swelling; infrequent – neck pain, muscle weakness; rare – myopathy, myositis, rhabdomyolysis, tendinopathy complicated by tendon rupture; frequency unknown – immune-mediated necrotizing myopathy.
Reproductive system: very rare – gynecomastia; frequency unknown – sexual dysfunction.
General disorders: infrequent – asthenia, weakness, chest pain, peripheral edema, increased body temperature, lethargy, weight gain, anorexia.
Laboratory parameters: frequently – hyperglycemia, increased serum creatine kinase activity; infrequently – leukocyturia, hypoglycemia, increased activity of “hepatic” transaminases; frequency unknown – increased concentration of glycolized hemoglobin.
Overdose
Pregnancy use
Similarities
Weight | 0.020 kg |
---|---|
Shelf life | 2 years |
Conditions of storage | Store at a temperature not exceeding 25 ºC. Keep out of reach of children! |
Manufacturer | Teva Pharmaceutical Enterprises Ltd, Israel |
Medication form | pills |
Brand | Teva Pharmaceutical Enterprises Ltd |
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