The simultaneous administration of aliskiren and hydrochlorothiazide did not lead to significant changes in the indices AUC in the equilibrium state and CmOh both components in healthy volunteers.
Non-steroidal anti-inflammatory drugs (NSAIDs), including selective inhibitors of cyclooxygenase-2 (COX-2)
In elderly patients, patients with reduced BCC (including patients on diuretic therapy), patients with impaired renal function, concurrent use of NSAIDs with thiazide diuretics and agents that affect RAAS can lead to impaired renal function. up to the development of acute renal failure, in most cases reversible. The antihypertensive and diuretic effects of hydrochlorothiazide may decrease with taking NSAIDs
Aliskiren
Simultaneous use of aliskiren with ACE inhibitors and angiotensin II receptor antagonists (APA II) in patients with type 2 diabetes and severe renal failure is contraindicated.
The likelihood of interaction of aliskiren with other drugs is low. Since with simultaneous application aliskiren has no significant effect on the pharmacokinetics of acenocoumarol, atenolol, celecoxib, fenofibrate. pioglitazone, allopurinol, isosorbide 5-mononitrate, irbesartan, digoxin, ramipril, valsartan, metformin, amlodipine, atorvastatin, cimetidine and hydrochlorothiazide, while applying a dose adjustment of aliskiren or the above drugs is not required.
Interaction at the level of the cytochrome P450 system
Aliskiren does not inhibit isoenzymes of the cytochrome P450 system (CYPIA2. 2C8, 2C9, 2CI9, 2D6, 2EI and CYP3A) and does not induce isoenzyme CYP3A4. Because the aliskiren is slightly metabolized by isoenzymes of the cytochrome P450 system. the clinically significant effect of aliskiren on the bioavailability of drugs that are inducers or inhibitors of the cytochrome P450 system or metabolized with its participation is unlikely.
Interaction at the P-glycoprotein level encoded by genes MDR1
Since in studies in vitro It has been established that the P-glycoprotein (membrane transporter of molecules) plays an important role in regulating the absorption and distribution of aliskiren, it is possible to change the pharmacokinetics of the latter when used simultaneously with drugs inhibiting P-glycoprotein (depending on the degree of inhibition).
Substrates and weak inhibitors of P-glycoprotein
There is no significant interaction of aliskiren with weak P-glycoprotein inhibitors, such as atenolol, digoxin, amlodipine and cimetidine. When simultaneous application with atorvastatin (at a dose of 80 mg) in the equilibrium state there is an increase AUC and CmOh aliskiren (a dose of 300 mg) by 50%.
Moderate inhibitors of P-glycoprotein
With the simultaneous administration of a moderate inhibitor P-glycoproteina ketoconazole (200 mg) and aliskiren (300 mg), an increase in the plasma concentration of the latter (AUC and CmOh) by 80%. In experimental studies, simultaneous administration of aliskiren with ketoconazole led to an increase in the absorption of aliskiren in the gastrointestinal tract and a decrease in its excretion through the intestine with bile. With a single application of verapamil (at a dose of 240 mg), together with aliskirenom (at a dose of 300 mg), there was an increase AUC and CmOh aliskiren in 2 times.
Changes in the plasma concentration of aliskiren with simultaneous use with ketoconazole or verapamil are expected in the range of concentrations determined with an increase in the aliskiren dose by a factor of 2.In controlled clinical trials, the safety of the drug at a dose of 600 mg was demonstrated, that is, with an increase in the maximum recommended therapeutic dose of 2 times. Therefore, when aliskiren is used together with ketoconazole or verapamil, dose adjustment of aliskiren is not required.
Strong P-glycoprotein inhibitors
When used with such a highly active inhibitor P-glycoprotein, as ciclosporin (200 and 600 mg), in healthy volunteers there was an increase in Cmzx and AUC aliskiren (75 mg) in 2.5 and 5 times, respectively. In healthy volunteers, when aliskiren was used (at a dose of 150 mg), together with intra -conazole (at a dose of 100 mg), an increase AUC and CmOh aliskiren in 6.5 and 5.8 times, respectively.
In this regard, it is not recommended to use the drug simultaneously with strong inhibitors of P-glycoprotein (cyclosporine, itraconazole).
Double blockade of RAAS
Simultaneous use of aliskiren with other drugs that affect RAAS, including those with ACE inhibitors and ARA II. leads to an increase in the incidence of severe depression of blood pressure, hyperkalemia, renal dysfunction (including acute renal failure).It is necessary to monitor the indices of blood pressure, kidney function, and also the content of plasma electrolytes at use of the preparation of Co-Racilez ® with other drugs that affect RAAS.
Furosemide
With the simultaneous use of aliskiren (300 mg / day) with furosemide (20 mg / day) in healthy volunteers, there was a decrease AUC and CmOh furosemide by 28% and 49%, respectively.
In patients with heart failure, simultaneous use of aliskiren (300 mg / day) with furosemide (60 mg / day) resulted in a decrease AUC and CmOh furosemide by 17% and 27%, respectively, and by a decrease in furosemide excretion by the kidneys by 29% within 24 hours after administration. In addition, the excretion of sodium by the kidneys and the volume of urine were reduced during the first 4 hours after admission by 31% and 24%, respectively, compared with the use of furosemide in monotherapy. Given the possible decrease in systemic bioavailability of furosemide, and to prevent possible fluid retention when using aliskiren simultaneously with furosemide, the dose of furosemide must be adjusted at the beginning and during treatment, depending on the clinical response.
Potassium and potassium-sparing diuretics
Taking into account the experience of using other means that affect RAAS, use caution aliskiren together with preparations containing potassium, potassium-sparing diuretics, potassium-containing substitutes for edible salt or any other medicines capable of increasing the content of potassium ions in the blood.
Grapefruit juice
Since there is no data on the possible interaction of aliskiren with grapefruit juice, the preparation Ko-Racilez® Do not take with grapefruit juice at the same time.
Hydrochlorothiazide
Lithium
With simultaneous use with ACE inhibitors and diuretics, cases of a reversible increase in the plasma concentration of lithium and its toxic effect were reported. Therefore, with the simultaneous use of hydrochlorothiazide and preparations containing lithium, it is recommended to monitor the concentration of lithium in the blood. The experience of simultaneous application of aliskiren and lithium preparations is absent.
Other antihypertensive drugs
Thiazide diuretics increase the antihypertensive effect of other antihypertensive drugs (including guanethidine, methyldopa, beta adrenoblockers, vasodilators, slow calcium channel blockers, ACE inhibitors, APA II, direct renin inhibitors).
Curare like muscle relaxants
Thiazide diuretics, including hydrochlorothiazide, potentiate the action of curare-like muscle relaxants (for example, tubocurarine chloride).
Drugs affecting the content of potassium in the blood
The hypokalemic effect caused by diuretics can be intensified with simultaneous use with potassium-diuretics, glucocorticosteroids (GCS), adrenocorticotropic hormone (ACTH), amphotericin, carbenoxolane, penicillin, acetylsalicylic acid or its derivatives and antiarrhythmic drugs.
Drugs affecting the sodium content in the blood
Hyponatremic effect caused by diuretics can be intensified with simultaneous use with antidepressants, antipsychotic, anticonvulsants, etc. Caution should be exercised in the long-term simultaneous use of the drug Ko-Racilez together with the above preparations.
Hypoglycemic agents
When hydrochlorothiazide is used, there is a change in glucose tolerance, and therefore, patients with diabetes may require a correction of insulin doses and hypoglycemic agents for oral administration.
FROMcardiac glycosides
Hypokalemia and hypomagnesemia (undesirable effects of thiazide diuretics) can contribute to the development of cardiac arrhythmias in patients receiving cardiac glycosides.
H and m-holinoblokatory
H- and m-holinoblokatory (incl. atropine, biperidene) can increase the bioavailability of hydrochlorothiazide. which is associated with a decrease in peristalsis of the gastrointestinal tract and the rate of gastric emptying. Accordingly, GI motility stimulants (cisapride) can reduce the bioavailability of hydrochlorothiazide.
Anion exchange resins
The absorption of hydrochlorothiazide decreases in the presence of colestyramine and colestipol. Hydrochlorothiazide should be taken either within 4 hours, or 4-6 hours after taking these compounds.
Vitamin D and calcium salts
Simultaneous intake of hydrochlorothiazide with vitamin D or calcium preparations can lead to an increase in the calcium content in the blood.
Cyclosporin
With the simultaneous use of hydrochlorothiazide and cyclosporine, the risk of developing hyperuricemia and the appearance of symptoms resembling gout are increased.
Methyldopa
Hemolytic anemia has been reported with the simultaneous use of hydrochlorothiazide and methyldopa.
Other types of interaction
The simultaneous use of thiazide diuretics, including hydrochlorothiazide, may lead to an increase in the frequency of hypersensitivity reactions to allopurinol; increased risk of side effects of amantadine; increase the hyperglycemic effect of diazoxide, reduce the excretion of drugs that have a cytotoxic effect (eg, cyclophosphamide, methotrexate), and potentiate their mielosuppressive effects. Also hydrochlorothiazide can reduce the body's response to the introduction of pressor amines (norepinephrine (norepinephrine)), but this effect is clinically insignificant and can not prevent simultaneous use of drugs.
Ethanol, barbiturates and narcotics facilities: their simultaneous use with hydrochlorothiazide can potentiate development of orthostatic hypotension.