Plasma protein binding is significant (more than 99.5%), mainly with albumin and α1-glycoprotein. Vd for telmisartan approximately 500 liters.
Penetrates through the placental barrier and is determined in the blood of the umbilical cord.
Telmisartan is metabolized by conjugation with glucuronic acid. The metabolite (acylglucuronide) is pharmacologically inactive. Glucuronide is the main metabolite that is found only in humans.
Most of the administered dose (more than 97%) is excreted in the bile, and then in the feces. In small amounts, telmisartan is excreted in the urine. The total plasma clearance is more than 1500 ml / min. T1 / 2 is more than 20 hours.
In women, the plasma concentration of telmisartan is 2-3 times higher than in men. However, there is no increase in the hypotensive effect in women.
The pharmacokinetic parameters of telmisartan do not differ significantly in young and elderly patients.
Renal excretion does not affect the clearance of telmisartan. Based on the level of excretion in patients with mild to moderate renal impairment (CC 30 to 60 ml / min), no dosage adjustment is required. Telmisartan is not removed by dialysis.
Pharmacokinetic studies in patients with hepatic insufficiency have shown an increase in absolute bioavailability up to almost 100%. In liver failure, T1 / 2 does not change.
After oral administration MikardisPlus® Cmax of hydrochlorothiazide is achieved within 1-3 hours. The absolute bioavailability is estimated by the cumulative renal excretion of hydrochlorothiazide and is about 60%.
Binds to blood plasma proteins by 64%. Vd - 0.8 ± 0.3 l / kg.
It is not metabolized in the human body and is excreted in the urine practically unchanged. About 60% of the dose taken orally is eliminated within 48 hours. Renal clearance is about 250 - 300 ml / min. T1 / 2 - 10-15 hours
In women, there is a tendency to an increase in plasma concentrations of hydrochlorothiazide. However, there is no increase in the hypotensive effect in women.
In patients with impaired renal function, the rate of excretion of hydrochlorothiazide is reduced. T1 / 2 of hydrochlorothiazide at CC 90 ml / min increases and is about 34 hours.
Arterial hypertension (in case of ineffectiveness of telmisartan or hydrochlorothiazide as monotherapy).
It is not yet known whether telmisartan passes into breast milk, hydrochlorothiazide passes into breast milk and may inhibit lactation. Therefore MikardisPlus is contraindicated for use during lactation.
Telmisartan has no teratogenic effect, but has a fetotoxic effect. Therefore MikardisPlus should not be used in the first trimester of pregnancy. In case of a planned pregnancy, MikardisPlus should be replaced with preparations approved for use during pregnancy. If pregnancy is established, you should immediately stop taking the preparation.
In the II and III trimesters, the use of the preparation can cause electrolyte disturbances in the fetus, as well as, possibly, other disturbances that are known in adults. It was reported about the development of neonatal thrombocytopenia, jaundice (in the fetus or in the newborn) in the case of the mother taking thiazide diuretics (including hydrochlorothiazide).
Therefore, the preparation is contraindicated in the II and III trimester of pregnancy.
Compound
Active ingredients:
• telmisartan 40 and 80 mg,
• hydrochlorothiazide 12.5 mg;
Excipients:
• povidone,
• meglumine,
• sodium hydroxide,
• sorbitol,
• magnesium stearate,
• microcrystalline cellulose,
• iron oxide red,
• sodium starch glycolate,
• lactose monohydrate,
•corn starch
Contraindications
- cholestasis and obstructive diseases of the biliary tract;
- severe liver dysfunction;
- severe renal dysfunction (CC <30 ml / min);
- hypokalemia, hyponatremia, hypercalcemia;
- hereditary fructose intolerance (contains sorbitol);
- age up to 18 years (safety and effectiveness have not been established);
- II and III trimesters of pregnancy;
- lactation period;
- hypersensitivity to MikardisPlus or other sulfonamide derivatives.
With caution: MikardisPlus should be prescribed in case of impaired liver function or progressive liver diseases; bilateral stenosis of the renal arteries or stenosis of an artery of a solitary kidney; impaired renal function; condition after kidney transplantation; decrease in BCC due to previous diuretic therapy, restriction of salt intake, diarrhea or vomiting; with chronic heart failure; stenosis of the aortic and mitral valve; obstructive hypertrophic cardiomyopathy; diabetes mellitus; Ischemic heart disease; systemic lupus erythematosus; gout.
Side effects
1) - side effects expected based on experience with telmisartan.
2) - side effects expected based on experience with hydrochlorothiazide.
Respiratory system: upper respiratory tract infections (including bronchitis, pharyngitis, sinusitis), shortness of breath1), dyspnea, respiratory distress syndrome (including pneumonia and pulmonary edema) 2).
From the side of the cardiovascular system: bradycardia1), tachycardia1), arrhythmias2), marked decrease in blood pressure1), orthostatic hypotension2), necrotizing angiitis (vasculitis) 2), chest pain1).
From the side of the central nervous system: excitability, fear, depression1) 2), anxiety2), dizziness, fainting1), insomnia1), staggering when walking2), paresthesia2).
From the digestive system: abdominal pain, diarrhea, dyspepsia, gastritis, anorexia2), decreased appetite2), sialoadenitis2), dry mouth1), flatulence1), vomiting1), constipation2), pancreatitis2), liver dysfunction1), jaundice (hepatocellular or cholestatic) 2).
From the endocrine system: loss of control of the level of hypoglycemia in diabetes mellitus.
Metabolic disorders: hypercholesterolemia, hyperuricemia, hypokalemia, hyperkalemia, hyponatremia2), decreased BCC2), electrolyte metabolism disorder2), hyperglycemia2), hypercalcemia1).
From the hematopoietic system: eosinophilia1), anemia (including aplastic anemia2), hemolytic anemia2), inhibition of bone marrow hematopoiesis2), leukopenia2), neutropenia / agranulocytosis2), thrombocytopenia1) 2).
From the urinary system: urinary tract infections, interstitial nephritis2), renal dysfunction2), acute renal failure1), glucosuria2).
From the musculoskeletal system: arthralgia, arthrosis, back pain, pain in the legs, myalgia, twitching of the calf muscles (cramps) 1), symptoms similar to tendinitis1), weakness1) 2), muscle spasm2).
Allergic reactions: anaphylactic reactions2), eczema, erythema1), pruritus1), cutaneous lupus-like reactions2), cutaneous vasculitis2), photosensitivity reactions2), rash2), reactivation of cutaneous lupus erythematosus2), toxic epidermal necrolysis2), angioedema and similar cerebral edema (as in the case of the use of other angiotensin II antagonists).
From the senses: visual acuity disorders1), transient blurred vision2), xanthopsia2), vertigo.
On the part of the reproductive system: decreased potency.
Laboratory indicators: a decrease in hemoglobin1), an increase in the level of uric acid1), creatinine1), liver enzymes1), blood creatine phosphokinase1), triglycerides2).
Others: flu-like symptoms, fever2), increased sweating1).
The use of thiazide diuretics can impair glucose tolerance.
Interaction
With simultaneous use, it is possible to increase the concentration of digoxin in the blood plasma.
With simultaneous use with antihypertensive preparations, an increase in the antihypertensive effect is possible.
With simultaneous use with lithium preparations, an increase in the concentration of lithium in the blood plasma is possible.
With simultaneous use with potassium-sparing diuretics, heparin, dietary supplements, salt substitutes containing potassium, hyperkalemia may develop.
How to take, course and dosage
Mikardis Plus is taken regardless of food intake, 1 time per day
Overdose
Telmisartan symptoms: tachycardia and / or bradycardia, marked decrease in blood pressure. An overdose of hydrochlorothiazide is accompanied by a loss of electrolytes (hypokalemia, hypochloremia) and dehydration resulting from massive diuresis. The most common signs and symptoms of a hydrochlorothiazide overdose are nausea and drowsiness.
Hypokalemia can lead to muscle spasms and / or exacerbate cardiac arrhythmias caused by the simultaneous use of cardiac glycosides or certain antiarrhythmic preparations. Treatment: symptomatic and supportive therapy, the nature of which depends on the time elapsed since taking the preparation and on the severity of the symptoms.
It is recommended to induce vomiting and / or gastric lavage, to appoint activated charcoal. Frequent monitoring of electrolytes and serum creatinine is necessary. If arterial hypotension develops, the patient should be laid on his back and promptly given therapy aimed at replacing electrolytes and BCC. Telmisartan is not removed by hemodialysis.
The extent to which hydrochlorothiazide is removed during hemodialysis has not been established.
Special instructions
A special study of the effect of the preparation on the ability to drive a car and work with mechanisms has not been carried out.
However, when driving and working with mechanisms, one should remember about the possibility of dizziness and drowsiness developing when using Mikardis Plus.
Influence on the ability to drive vehicles and control mechanisms:
Storage conditions
The preparation should be stored in a place protected from moisture at a temperature not exceeding 25 ° C.
Shelf life
3 years