Interactions between the two active components that are included in fixed doses in the composition of this drug have not been revealed in clinical studies.Special studies of drug interactions of the drug TWINSTA with other drugs have not been conducted.
COMBINATION OF ACTIVE COMPONENTS
- Other antihypertensives
With simultaneous use with other antihypertensive drugs, the antihypertensive effect of the drug TWINSTA can intensify.
- Drugs that can reduce blood pressure
It can be expected that some drugs, for example, baclofen and amifostine, due to their pharmacological properties, will enhance the antihypertensive effect of all antihypertensive drugs, including the drug TWINSTA, In addition, orthostatic arterial hypotension may strengthen ethanol, Barbiturates, narcotics or antidepressants.
- Corticosteroids (systemic application)
It is possible to reduce the hypotensive effect.
TELMISARTAN
- Other antihypertensives
It is possible to intensify the hypotensive effect. In one study, combined use of telmisartan and ramipril showed an increase AUC0-24 and FROMmax ramipril and ramiprilata 2.5 times. The clinical significance of this interaction is not established.
Double blockade of RAAS (for example, the combined use of ACE inhibitors or aliskiren, a direct inhibitor of renin with APA II) is not recommended because of possible renal dysfunction (including acute renal failure).
- Lithium preparations
There was a reversible increase in the concentration of lithium in the blood, accompanied by toxic effects when taking ACE inhibitors. In rare cases, such changes were registered with the appointment of angiotensin II receptor antagonists, in particular telmisartan. When concomitant administration of lithium preparations and angiotensin II receptor antagonists, it is recommended to determine the content of lithium in the blood.
- Nonsteroidal anti-inflammatory drugs (NSAIDs), including acetylsalicylic acid (in doses used as an anti-inflammatory drug), cyclooxygenase-2 (COX-2) inhibitors and nonselective NSAIDs
Possible development of acute renal failure in patients with reduced BCC. Drugs that affect the activity of RAAS, including, telmisartan, may have a synergistic effect. In patients receiving NSAIDs and telmisartan, at the beginning of treatment should be compensated for BCC and kidney function monitoring performed.
With the simultaneous use of NSAIDs and antihypertensive drugs like telmisartan, a reduction in hypotensive effect was reported by inhibiting the vasodilating effect of prostaglandins.
- Other drugs
There was no clinically significant interaction with digoxin, warfarin, hydrochlorothiazide, glibenclamide, simvastatin, ibuprofen, paracetamol and amlodipine. An increase in the average concentration of digoxin in the blood plasma was observed on average by 20% (in one case by 39%). With the simultaneous administration of telmisartan and digoxin, it is advisable to periodically determine the concentration of digoxin in the blood
AMLODIPINE
- Grapefruit and grapefruit juice
The simultaneous use of the drug TWINSTA with grapefruit or grapefruit juice is not recommended, as in some patients, as a result of increasing the bioavailability of amlodipine, the antihypertensive effect may increase.
- Inhibitor inhibitors CYP3A4
In a study in elderly patients, it was shown that diltiazem inhibits the metabolism of amlodipine, probably influencing the isoenzyme CYP3A4 (concentration of amlodipine in the blood plasma increases by approximately 50% and amplifies the effect of amlodipine). It can not be ruled out that the more active isoenzyme inhibitors CYP3A4 (such as ketoconazole, itraconazole, ritonavir) can increase the concentration of amlodipine in the blood plasma to a greater extent than diltiazem.
- Inductors of isoenzyme CYP3A4 [Anticonvulsant drugs (eg, carbamazepine, phenobarbital, phenytoin, phosphenytoin, primidon), rifampicin, St. John's Wort (Hypericum perforatum)]
Joint application can lead to a decrease in the concentration of amlodipine in the blood plasma. Regular medical supervision is shown. During application of isoenzyme inducers CYP3A4, and after their cancellation is recommended (if possible) a change in the dose of amlodipine.
- Simvastatin
The combined use of amlodipine with simvastatin at a dose of 80 mg led to an increase in the exposure of simvastatin to 77% compared with simvastatin monotherapy. Therefore, the dose of simvastatin should not exceed 20 mg per day.
- Other drugs
The safety of joint use of amlodipine with thiazide diuretics, beta-adrenoblockers, ACE inhibitors, long-acting nitrates, nitroglycerin (used sublingually), non-steroidal anti-inflammatory drugs, antibiotics and hypoglycemic agents for oral administration. With the simultaneous use of amlodipine and sildenafil, it was shown that each drug had an independent hypotensive effect.
Additional Information:
Simultaneous use in 20 healthy volunteers of 240 ml of grapefruit juice with a single dose of amlodipine 10 mg ingested did not significantly affect the pharmacokinetic properties of amlodipine. The simultaneous use of amlodipine with cimetidine did not significantly affect the pharmacokinetics of amlodipine. The simultaneous use of amlodipine with atorvastatin, digoxin, warfarin or cyclosporine did not significantly affect the pharmacokinetics or pharmacodynamics of these drugs.
Based on the experience of using other drugs that affect RAAS, the simultaneous use of the drug TWINSTA and potassium-sparing diuretics, potassium-containing supplements, potassium-containing edible salt, other means that increase the potassium content in the blood (eg heparin) can lead to hyperkalemia, therefore, in patients.In this regard, their simultaneous use with telmisartan requires caution.