Not recommended concomitant use Antiretroviral drugs
Shown, that omeprazole, and its racemate - esomeprazole, interact with some antiretroviral drugs. The clinical significance and mechanisms of these interactions are not completely clear. An increase in the pH of the stomach during the administration of omeprazole may alter the absorption of the antiretroviral drug. Other possible mechanisms of interaction are mediated CYP2C19. When using some antiretroviral drugs, such as atazanavir and nelfinavir, concomitantly with omeprazole, the concentrations of these drugs in the blood serum decreased. In this regard, it is not recommended to take omeprazole simultaneously with such drugs as atazanavir and nelfinavir. When omeprazole is used concomitantly with other antiretroviral drugs, such as saquinavir, there was an increase in serum concentration of the latter. Concentrations of some other antiretroviral drugs in serum did not change with concomitant use with omeprazole. In connection with the similar pharmacodynamic - and pharmacokinetic properties of omeprazole and esomeprazole, it is contraindicated to take esomeprazole at the same time as antiretroviral drugs, such as atazanavir and nelfinavir.
Use with caution
Acetylsalicylic acid
Vimovo ™ can be taken concomitantly with acetylsalicylic acid at a low dosage (<325 mg / day). In clinical trials, the frequency of gastric ulcers did not increase in patients taking Vimovo ™ in combination with low-dose acetylsalicylic acid compared with patients receiving only Vimovo ™. However, concomitant use of acetylsalicylic acid and Vimovo ™ may increase the risk of serious adverse events.
With the simultaneous use of naproxen with acetylsalicylic acid in high doses, its binding to plasma proteins is reduced, but without affecting the clearance of free naproxen. The clinical significance of this interaction is unknown.
Diuretics
Clinical studies, as well as postmarketing observation, have shown that in some patients, NSAIDs can reduce the natriuretic effect of furosemide and thiazide diuretics. This is due to the suppression of the synthesis of renal prostaglandins.With the concomitant use of diuretics with NSAIDs, carefully monitor the signs of renal failure, and monitor the effectiveness of diuretic therapy.
Selective serotonin reuptake inhibitors
According to epidemiological studies, there is a link between the use of psychotropic drugs that affect serotonin reuptake, and the development of bleeding from the upper sections of the gastrointestinal tract. Therefore, caution should be taken to prescribe NSAIDs, including selective COX-2 inhibitors, along with selective serotonin reuptake inhibitors.
Corticosteroids
With simultaneous use of corticosteroids with NSAIDs, including selective COX-2 inhibitors, increases the risk of gastrointestinal bleeding. Caution should be given to NSAIDs simultaneously with corticosteroids. ACE Inhibitors NSAIDs can reduce the antihypertensive effect of ACE inhibitors. This interaction should be considered when prescribing NSAIDs simultaneously with ACE inhibitors.
Lithium preparations
NSAIDs increase the concentration of lithium in the blood plasma and reduce the kidney clearance of lithium.The average minimum concentration of lithium is increased by 15%, and the renal clearance is reduced by 20%. These effects were due to the inhibition of NSAIDs in the synthesis of prostaglandins in the kidneys. Therefore, with the simultaneous use of NSAIDs and lithium preparations, you should closely monitor the signs of lithium toxicity.
Methotrexate
NSAIDs competitively inhibit methotrexate cumulation and decrease the secretion of methotrexate in the renal tubules on animal models. This may indicate a possible increase in toxicity of methotrexate when used concomitantly with NSAIDs. In this regard, caution should be exercised in the combined use of NSAIDs and methotrexate.
Derivatives of sulfonylurea, hydantoin
Naproxen binds to a high degree with blood plasma albumin, therefore it is theoretically possible to interact with other albumin binding drugs, such as sulfonylurea derivatives and hydantoin. Patients receiving concomitantly naproxen and hydantoin derivatives, sulfonamide or sulfonyl urea derivatives, if necessary, adjust the dose of the drug.
Warfarin
NSAIDs can enhance the effect of oral anticoagulants (eg, warfarin and acenocoumarol) and heparin.
With simultaneous use of esomeprazole in a dose of 40 mg with warfarin, despite an insignificant increase in the minimum plasma concentration of less potent R- isomer of warfarin, the coagulation time remained within the permissible norm. However, post-marketing surveillance revealed cases of a clinically significant increase in the International Normalized Ratio (INR) with concomitant use with warfarin. Therefore, it is recommended to carefully monitor the initiation and completion of therapy with warfarin or other coumarin derivatives.
Beta-blockers
Naproxen and other NSAIDs can reduce the antihypertensive effect of propranolol and other beta-blockers.
Cyclosporin / tacrolimus
Due to the increased risk of nephrotoxicity, caution should be exercised when taking cyclosporine or tacrolimus simultaneously with any NSAID.
Probenecid
Concomitant therapy with probenecid increases plasma concentrations of the anion of naproxen and significantly extends the half-life from plasma.
Preparations, the absorption of which depends on the pH of the stomach
Reducing the acidity of gastric juice with esomeprazole may increase or decrease absorption of drugs if the absorption mechanism of these drugs depends on the acidity of the gastric juice. As with other drugs suppressing the secretion of hydrochloric acid, or antacid agents, treatment with esomeprazole may lead to a reduction in absorption of ketoconazole or itraconazole, as well as increased absorption of digoxin. Joint reception of omeprazole at a dose of 20 mg once a day and digoxin increases the bioavailability of digoxin by 10% (bioavailability of digoxin was increased by up to 30% in 20% of patients).
Other information about drug interactions
Studies of the combined use of esomeprazole and naproxen (nonselective NSAIDs) or rofecoxib (selective COX-2 inhibitor) have not revealed clinically significant interactions.
As with other NSAIDs, the concomitant use of colestyramine may inhibit naproxen absorption.
Esomeprazole suppresses CYP2C19, the main enzyme that metabolizes esomeprazole. Esomeprazole also metabolized by enzyme CYP3A4, The following observations related to these enzymes were obtained:
- Joint use of esomeprazole in a dose of 30 mg reduces by 45% the clearance of diazepam, the substrate CYP2C19. It is unlikely that this interaction has clinical relevance.
- The combined use of esomeprazole at a dose of 40 mg by 13% increases the minimum concentrations of phenytoin in the blood plasma in patients with epilepsy.
- Joint use of esomeprazole and a combined inhibitor CYP2C19 and CYP3A4, such as voriconazole, can almost double the concentration of esomeprazole.
- Joint use of esomeprazole and an inhibitor CYP3A4, clarithromycin (500 mg twice daily), twice the exposure (AUC) esomeprazole.
You do not need to change the dose of esomeprazole in these cases.
Medicines that induce isoenzymes CYP2C19 and CYP3A4, such as rifampicin and preparations of St. John's wort penetrated, when combined with esomeprazole may lead to a decrease in the concentration of esomeprazole in the blood plasma by accelerating the metabolism of esomeprazole.
Impact on laboratory performance
Naproxen can reduce platelet aggregation and prolong bleeding time. This should be remembered in determining the time of bleeding.
Naproxen can increase the levels of 17-ketosteroids in urine when determined by interaction of the drug and / or its metabolites with m-dinitrobenzene used in this assay. Although measurements of 17-hydroxy corticosteroids (test Porter- Silber) were not changed, Naproxen therapy was temporarily suspended for 72 hours until the adrenal gland function tests were performed, if a test Porter- Silber.
Naproxen can enter into interactions with certain substances used in the analysis of urine for 5-hydroxyindoleacetic acid.