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Interactions between Omeprazole and Singulair

No drug interactions found, but 10 warnings to review for the following 2 drugs:

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Drug interactions

There were no interactions found between omeprazole and Singulair. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

Food/lifestyle interactions

No alcohol/food interactions were found. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

Disease interactions

10 potential interactions Applies to: 10 conditions, including Depression, Osteoporosis, Diarrhea, Psychosis, and Liver Disease.

Depression

Major:

Singulair

The montelukast in Singulair has a major potential interaction with Depression.

The use of montelukast is associated with neuropsychiatric events. Patients and prescribers should be alert for neuropsychiatric events. Care should be taken before using this agent in patients with any history of mental illness. If neuropsychiatric events occur during treatment, it is recommended to carefully evaluate the risks and benefits of continuing treatment with montelukast.

Diarrhea

Major:

omeprazole

Omeprazole has a major potential interaction with Diarrhea.

Published observational studies suggest that proton pump inhibitor (PPI) use may be associated with an increased risk of Clostridium difficile-associated diarrhea (CDAD), especially in hospitalized patients. This diagnosis should be considered for diarrhea that does not improve. It is recommended that patients should use the lowest dose and shortest duration of PPI therapy appropriate to the condition being treated. Close monitoring is recommended in patients with diarrhea and in those taking antibacterial agents as CDAD has been reported with the use of nearly all these agents. Treatment with antibacterial agents alters the normal flora of the colon, leading to overgrowth of C. difficile. C. difficile produces toxins A and B, which contribute to the development of CDAD. Appropriate fluid and electrolyte management, protein supplementation, antibiotic treatment of C. difficile, and surgical evaluation should be instituted as clinically indicated.

Liver Disease

Moderate:

Singulair

The montelukast in Singulair has a moderate potential interaction with Liver Disease.

Reports of cholestatic hepatitis, hepatocellular liver-injury, and mixed-pattern liver injury have been reported in patients treated with montelukast sodium that had underlying potential for liver disease, such as alcohol use or other forms of hepatitis. Patients with mild-to-moderate hepatic insufficiency and clinical evidence of cirrhosis had evidence of decreased metabolism of montelukast. No dosage adjustment is required in patients with mild-to-moderate hepatic insufficiency. The pharmacokinetics of montelukast sodium in patients with more severe hepatic impairment or with hepatitis have not been evaluated. Use caution when prescribing montelukast to these patients.

Magnesium Imbalance

Moderate:

omeprazole

Omeprazole has a moderate potential interaction with Magnesium Imbalance.

Symptomatic and asymptomatic hypomagnesemia has been reported rarely in patients treated with PPIs for at least 3 months, in most cases after a year of therapy. Serious adverse events can include tetany, seizures, and arrhythmias. Caution should be used in patients prone to magnesium imbalances such as patients taking other medications that can cause hypomagnesemia (e.g., diuretics). Regular monitoring is recommended.

Neurotic Depression

Major:

Singulair

The montelukast in Singulair has a major potential interaction with Neurotic Depression.

The use of montelukast is associated with neuropsychiatric events. Patients and prescribers should be alert for neuropsychiatric events. Care should be taken before using this agent in patients with any history of mental illness. If neuropsychiatric events occur during treatment, it is recommended to carefully evaluate the risks and benefits of continuing treatment with montelukast.

Osteoporosis

Moderate:

omeprazole

Omeprazole has a moderate potential interaction with Osteoporosis.

Various published observational studies have reported that PPI therapy may be associated with an increased risk for osteoporosis related fractures of the hip, wrist or spine. The risk was increased in patients who received high doses (multiple daily doses), and long term treatment (a year or longer). Patients should use the lowest dose and shortest duration of PPI therapy appropriate to the condition being treated. Caution should be used in patients at risk for osteoporosis related fractures and should be managed according to established treatment guidelines.

Phenylketonuria

Moderate:

Singulair

The montelukast in Singulair has a moderate potential interaction with Phenylketonuria.

Singulair (brand of montelukast) chewable tablets contain 0.842 mg of phenylalanine per each 5 mg tablet. The phenylalanine content should be considered when this product is used in patients who must restrict their intake of phenylalanine (i.e. phenylketonurics).

Pseudomembranous Colitis

Major:

omeprazole

Omeprazole has a major potential interaction with Pseudomembranous Colitis.

Published observational studies suggest that proton pump inhibitor (PPI) use may be associated with an increased risk of Clostridium difficile-associated diarrhea (CDAD), especially in hospitalized patients. This diagnosis should be considered for diarrhea that does not improve. It is recommended that patients should use the lowest dose and shortest duration of PPI therapy appropriate to the condition being treated. Close monitoring is recommended in patients with diarrhea and in those taking antibacterial agents as CDAD has been reported with the use of nearly all these agents. Treatment with antibacterial agents alters the normal flora of the colon, leading to overgrowth of C. difficile. C. difficile produces toxins A and B, which contribute to the development of CDAD. Appropriate fluid and electrolyte management, protein supplementation, antibiotic treatment of C. difficile, and surgical evaluation should be instituted as clinically indicated.

Psychosis

Major:

Singulair

The montelukast in Singulair has a major potential interaction with Psychosis.

The use of montelukast is associated with neuropsychiatric events. Patients and prescribers should be alert for neuropsychiatric events. Care should be taken before using this agent in patients with any history of mental illness. If neuropsychiatric events occur during treatment, it is recommended to carefully evaluate the risks and benefits of continuing treatment with montelukast.

Pulmonary Impairment

Moderate:

Singulair

The montelukast in Singulair has a moderate potential interaction with Pulmonary Impairment.

Patients with asthma on therapy with montelukast may present with systemic eosinophilia, sometimes presenting with clinical features of vasculitis consistent with Churg-Strauss syndrome, a condition which is often treated with systemic corticosteroid therapy. Prescribers should be alert to eosinophilia, vasculitic rash, worsening pulmonary symptoms, cardiac complications, and/or neuropathy presenting in their patients. Care should be taken before using this agent in patients with history of pulmonary disorders.

More resources

omeprazole

A total of 269 drugs are known to interact with omeprazole.

Singulair

A total of 123 drugs are known to interact with Singulair.

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.