Impaired liver function
The use of TESEO® is contraindicated in patients with cholestasis, bile duct obstruction, or severe liver dysfunction (Child-Pugh class C) (see "Contraindications"), since telmisartan mostly excreted with bile.It is suggested that in these patients the hepatic clearance of telmisartan is reduced. In patients with mild to moderate liver failure (class A and B according to the Child-Pugh classification), the TEZEO® preparation should be used with caution (see "With caution").
Renovascular hypertension
When treating with RAAS-acting drugs, patients with bilateral stenosis of the renal arteries or stenosis of the artery of a single functioning kidney are at increased risk for severe arterial hypotension and renal insufficiency.
Impaired renal function and kidney transplantation
When using TESEO® in patients with impaired renal function, periodic monitoring of potassium and creatinine in the blood plasma is recommended. The experience of clinical use of the preparation TEZEO® in patients who have recently undergone kidney transplantation is absent.
Reduction of the volume of circulating blood (BCC)
Symptomatic arterial hypotension, especially after the first dose of TESEO®, may occur in patients with reduced BCC and / or sodium in the blood plasma on the background of previous treatment with diuretics, restriction of salt intake, diarrhea, or vomiting.
Such conditions (deficiency of fluid and / or sodium) should be eliminated before starting the TESEO® preparation.
Double blockade of the renin-angiotensin-aldosterone system
The concomitant use of telmisartan with aliskiren is contraindicated in patients with diabetes mellitus or renal insufficiency (GFR less than 60 mL / min / 1.73 m2 body surface area) (see section "Contraindications").
Simultaneous use of telmisartan and ACE inhibitors is contraindicated in patients with diabetic nephropathy (see section "Contraindications").
As a result of the oppression of RAAS, arterial hypotension, syncope, hyperkalemia and impaired renal function (including acute renal failure) were noted in patients who were predisposed to this, especially when several drugs were used together, also acting on this system. Therefore, the double blockade of RAAS (for example, against the background of taking telmisartan with other antagonists of RAAS) is not recommended.
In cases of vascular tone and kidney function, mainly from RAAS activity (for example, in patients with chronic heart failure or kidney disease, including,with stenosis of the renal arteries, or stenosis of the artery of a single kidney), the administration of drugs that affect this system can be accompanied by the development of acute arterial hypotension, hyperazotemia, oliguria, and in rare cases acute renal failure.
Primary hyperaldosteronism
In patients with primary hyperaldosteronism, treatment with antihypertensive drugs, which are effected by inhibition of RAAS, is usually ineffective. Therefore, the use of TESEO® is not recommended.
Stenosis of aortic and mitral valves, hypertrophic obstructive cardiomyopathy
As with other vasodilators, patients with aortic or mitral stenosis, as well as hypertrophic obstructive cardiomyopathy, should be especially careful when using TESEO®.
Patients with diabetes who received insulin or hypoglycemic agents for oral administration
Against the background of treatment with TESEO®, hypoglycemia can occur in these patients. In such patients, glycemic control should be strengthened,since it may be necessary to adjust the dose of insulin or hypoglycemic agent.
Hyperkalemia
The intake of medicines acting on RAAS can cause hyperkalemia. In elderly patients, patients with renal insufficiency or diabetes mellitus, patients also taking medications that promote increased levels of potassium in the blood plasma, and / or patients with concomitant diseases, hyperkalemia can be fatal.
When deciding on the concomitant use of drugs acting on RAAS, it is necessary to assess the risk-benefit ratio. The main risk factors for the development of hyperkalemia, which should be considered, are:
- diabetes mellitus, renal failure, age (patients older than 70 years);
- combination with one or more drugs acting on RAAS, and / or potassium-containing food additives. Drugs or therapeutic classes of medications that can cause hyperkalemia include salt substitutes containing potassium, potassium-sparing diuretics, ACE inhibitors, angiotensin II receptor antagonists,non-steroidal anti-inflammatory drugs (NSAIDs, including selective inhibitors of COX-2), heparin, immunosuppressants (ciclosporin or tacrolimus) and trimethoprim;
- intercurrent diseases, especially dehydration, acute heart failure, metabolic acidosis, impaired renal function, cytolysis syndrome (eg, acute limb ischemia, rhabdomyolysis, extensive trauma).
Patients at risk should carefully monitor potassium levels in the blood plasma (see section "Interaction with other drugs").
Sorbitol
This medication contains sorbitol (E420). Patients with a rare hereditary intolerance to fructose should not take the TESEO® preparation.
Ethnic differences
As noted for ACE inhibitors, telmisartan and other ARAII, appear to be less effective in lowering arterial pressure in patients of the Negroid race than in representatives of other races, possibly due to a greater predisposition to a decrease in renin activity in the population of these patients.
Other
As with the use of other antihypertensive drugs,excessive reduction in blood pressure in patients with ischemic cardiomyopathy or coronary heart disease can lead to myocardial infarction or stroke.