In the period of treatment with the drug SimvaHEXAL ® in rare cases, dizziness, drowsiness, headache,therefore, care should be taken when driving vehicles and performing other potentially dangerous activities that require increased concentration and speed of psychomotor reactions.
CK activity
If a patient has increased the activity of CKK with the SymwaHEXAL® drug and muscle symptoms have appeared, other causes of increased enzyme activity should be excluded: intense physical activity, trauma, bruises, fever, hypothyroidism, infections, carbon dioxide poisoning, polymyositis, dermatomyositis, alcohol abuse, narcotic means.
Before using the drug SimvaHEXAL® it is necessary to perform a blood test for the activity of CKK. In elderly patients (over 65 years of age), with hypothyroidism, type 2 diabetes (insulin-independent diabetes), asthenic constitution, impaired renal function receiving combined therapy of statins with fibrates, it is recommended to repeat the activity of CKK every 3 months during the first year of therapy . Control of the activity of CK in patients without symptoms of myopathy receiving therapy with the drug SimvaHEXAL® is not required.
If the patient develops symptoms of myopathy and excludes secondary causes of it, regardless of the activity of CKK, the preparation of SimvaHEXAL should be discontinued.
If the patient exhibits an asymptomatic increase in CKK activity by more than 5 times compared with the upper limit of the norm, therapy with SimvaHEXAL® can be continued with subsequent monitoring of the activity of CKM monthly until it normalizes.
Before treatment begins
All patients before the start of treatment with the drug SimvaHEXAL® or patients in whom the dose of the drug was increased, it is necessary to warn about the risk of myopathy, and patients are asked to immediately report any unexplained muscle pain, sensation of pain or weakness.
Care should also be taken in patients with a predisposition to rhabdomyolysis. It is necessary to determine the activity of CKK before treatment in the following situations:
Elderly patients (age over 65)
Women
Impaired renal function
Untreated hypothyroidism
Personal or family anamnesis of hereditary muscle disorders
Reactions of muscle toxicity in taking a statin or fibrate in an anamnesis
Excessive consumption of alcohol (ethanol)
In these situations, it is necessary to assess the relationship between the risk of treatment and the possible benefits, and careful monitoring of the patient is also recommended. If the patient has previously had an anomalous myopathy associated with taking a fibrate or a statin, caution should be taken with a drug from the same group. If the activity of CK exceeds the value of the upper limit of the norm more than 5 times, then treatment should not begin.
During the treatment period
If during the treatment with the drug SimvaHEXAL® the patient has muscle pain, weakness, spasms, it is necessary to evaluate the activity of CKK. If the activity of CK exceeds the value of the upper limit of the norm by more than 5 times, then the treatment should be stopped. If the muscle symptoms are severe and cause daily discomfort, even with the activity of CK, which does not exceed 5 times the upper limit of the norm, consideration should be given to the possibility of discontinuing drug treatment. If there is a suspicion of myopathy for any other reason, treatment with SimvaHEXAL® should be discontinued.
After the disappearance of symptoms and the restoration of normal activity of CK, it is permissible to consider the possibility of resuming treatment with the drug SimvaHEXAL®, or the use of an alternative statin in the lowest possible dose and with the careful supervision of a physician.
Characteristics of the use of the drug SimvaHEXAL® with other medicinal products, see the section "Interaction".
Diabetes
The drug SimvaGEKSAL® increases in plasma glucose concentration, so some patients from the risk group of diabetes may experience hyperglycemia requiring medical correction. However, reducing the risk of complications from the blood vessels in the application of statins exceed the risk of hyperglycemia, so when the concentration of glucose in the blood should not interrupt treatment with SimvaGEKSAL®. Use of the drug in patients at risk (glucose concentration in fasting 5.6 - 6.9 mmol / l; body mass index greater than 30 kg / m, increased plasma levels of TG, hypertension) probably by careful observation of their physician.
Effects on the liver
At the beginning of therapy with the preparation of SimvaHEXAL®, there may be a transient increase in the activity of "liver" transaminases in the blood serum.
Before starting treatment, and then according to clinical indications, all patients are recommended to perform liver function tests (to monitor the activity of "liver" transaminases before increasing the dose of the drug SimvaHEXAL®, then 3 months after the beginning of its use and then 1 time in six months during the first year of treatment). Particular attention should be given to patients with increased activity of "liver" transaminases. When persistently increasing the activity of "liver" transaminases (3 or more times higher than the upper limit of the norm), the use of the preparation of SimvaHEXAL® should be discontinued.
In patients with reduced thyroid function (hypothyroidism) or in the presence of certain kidney diseases (nephrotic syndrome) with nAn increase in the concentration of cholesterol should be followed first with treatment of the underlying disease.
Interstitial lung disease
With prolonged use of statins, it is possible in rare cases to develop interstitial lung disease (dyspnea, dry cough, worsening general health - increased fatigue, weight loss, chills). With the development of these symptoms, the use of the SimvaHEXAL® drug should be stopped immediately.
Application in children and adolescents (10-17 years)
Safety and efficacy of the drug in children and adolescents aged 10-17 years with heterozygous familial hypercholesterolemia were evaluated in controlled clinical trials involving 10-17 year olds and 10-17 year olds not less than 1 year after menarche. In patients of child age, who used simvastatin, the side effect profile was similar to that of patients taking placebo. The use of the drug SimvaHEXAL® in a dose of more than 40 mg in children of childhood was not studied. In this study, there was no effect of the drug on the growth and puberty of young men and girls or any effect on the length of the menstrual cycle in girls.
Girls should be informed of appropriate contraceptive measures during drug treatment. The use of simvastatin has not been studied in children under 10 years of age or in girls 10-17 years before the menarche. Simultaneous use of a large amount (more than 1 liter per day) grapefruit juice may increase the severity of side effects associated with the use of the drug SimvaHEXAL, therefore, their joint administration should be avoided.
The drug SimvaHEXAL® is not indicated in cases where there is hypertriglyceridemia of types I and V.
Patients with severe renal failure receive treatment under the control of kidney function.
The data of modern long-term clinical studies do not contain information on the adverse effects of simvastatin on the lens of the human eye.
Peculiarities of pharmacokinetics in various races
In patients of Chinese nationality who apply together simvastatin in a dose of 40 mg per day and nicotinic acid in lipid-lowering doses (more than 1 g per day) increased the risk of myopathy. It should be used with caution simvastatin in a dose of more than 20 mg per day in conjunction with lipid-lowering doses of nicotinic acid in patients of Chinese nationality. The cause of increased risk of myopathy in this case is unknown. It is also unknown whether patients from other Asian countries have an increased risk of developing myopathy due to the joint use of simvastatin with nicotinic acid in lipid-lowering doses found in Chinese patients.
Treatment with the drug SimvaHEXAL® is recommended to be temporarily stopped a few days before the planned surgicalinterference.