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Interactions between Crystal B-12 and Esomeprazole

1 drug interaction and 10 additional warnings found for the following 2 drugs:

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Drug interactions

Minor drug interactions

Minor:

cyanocobalamin esomeprazole

Applies to: Crystal B-12 (cyanocobalamin) and esomeprazole

By reducing or suppressing gastric acid secretion, H2-receptor antagonists and proton pump inhibitors may interfere with the gastrointestinal absorption of vitamin B12, a process that is dependent on the presence of gastric acid and pepsin. Clinical studies have shown that dietary (i.e., protein-bound) vitamin B12 malabsorption can occur during treatment with these agents, particularly proton pump inhibitors, although the likelihood of developing clinically significant deficiency over time is unknown. There has been one reported case of vitamin B12 deficiency with megaloblastic anemia in a patient who received omeprazole at a minimum of 40 mg/day for 4 years. Also uncertain is whether acid reduction or suppression can affect the absorption of vitamin B12 ingested in the form of oral supplements such as cyanocobalamin. Non-oral routes of administration (e.g., parenteral, intranasal, sublingual) are generally preferred in the treatment of B12 deficiency-related anemia.

References (5)
  1. Salom IL, Silvis SE, Doscherholmen A (1982) "Effect of cimetidine on the absorption of vitamin B12." Scand J Gastroenterol, 17, p. 129-31
  2. Marcuard SP, Albernaz L, Khazanie PG (1994) "Omeprazole therapy causes malabsorption of cyanocobalamin (vitamin-b12)." Ann Intern Med, 120, p. 211-5
  3. Lavy NW (1994) "Omeprazole and vitamin B12." Ann Intern Med, 121, p. 74
  4. Dutta SK (1994) "Vitamin b-12 malabsorption and omeprazole therapy." J Am Coll Nutr, 13, p. 544-5
  5. Bradford GS, Taylor CT (1999) "Omeprazole and vitamin B-12 deficiency." Ann Pharmacother, 33, p. 641-3

Food/lifestyle interactions

Moderate food/lifestyle interactions

Moderate:

esomeprazole Food/Lifestyle

Applies to: esomeprazole
Adjust dosing interval

Food may interfere with the absorption of esomeprazole. The manufacturer reports that the area under the concentration-time curve for esomeprazole following a single 40 mg dose was 33% to 53% lower when administered after food intake as opposed to during fasting conditions.

Management

Esomeprazole should be taken at least one hour before meals. When administered to patients receiving continuous enteral nutrition, some experts recommend that the tube feeding should be interrupted for at least 1 hour before and 1 hour after the dose of esomeprazole is given.

References (2)
  1. (2001) "Product Information. Nexium (esomeprazole)." Astra-Zeneca Pharmaceuticals
  2. Wohlt PD, Zheng L, Gunderson S, Balzar SA, Johnson BD, Fish JT (2009) "Recommendations for the use of medications with continuous enteral nutrition." Am J Health Syst Pharm, 66, p. 1438-67

Disease interactions

9 potential interactions Applies to: 9 conditions, including Osteoporosis, Diarrhea, Hypokalemia, Liver Disease, and Malabsorption Syndrome.

Diarrhea

Major:

esomeprazole

Esomeprazole 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.

Hypokalemia

Major:

Crystal B-12

The cyanocobalamin in Crystal B-12 has a major potential interaction with Hypokalemia.

Hypokalemia (resulting in death) has occurred during vitamin B12 therapy as a result of increased red blood cell requirements during hematopoiesis. Clinical monitoring and correction of potassium levels prior to and during vitamin B12 therapy is necessary.

Leber's Disease

Major:

Crystal B-12

The cyanocobalamin in Crystal B-12 has a major potential interaction with Leber's Disease.

The use of cyanocobalamin is contraindicated in patients with Leber's disease (hereditary optic nerve atrophy). Cyanocobalamin has induced severe and rapid optic nerve atrophy in patient's with early Leber's disease.

Liver Disease

Moderate:

esomeprazole

Esomeprazole has a moderate potential interaction with Liver Disease.

Esomeprazole is primarily metabolized by the liver. In patients with mild to moderate hepatic impairment (Child Pugh Class A and B), little drug accumulation has been observed following once-daily, multiple-dose administration. No dosage adjustments are necessary in these patients. In severe hepatic impairment (Child Pugh Class C), however, substantial increases in plasma drug concentrations have been demonstrated. The manufacturer recommends a maximum dosage of 20 mg once daily in patients with severe liver disease.

Magnesium Imbalance

Moderate:

esomeprazole

Esomeprazole 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.

Malabsorption Syndrome

Moderate:

Crystal B-12

The cyanocobalamin in Crystal B-12 has a moderate potential interaction with Malabsorption Syndrome.

Absorption of vitamin B12 is decreased in malabsorption syndromes and in pernicious anemia without coadministration of intrinsic factor (IF). Cyanocobalamin is rapidly absorbed following IM or subcutaneous injections. Hydroxocobalamin (cyanocobalamin analog) functions the same a cyanocobalamin, but has induced antibody formation to the hydroxocobalamin-transcobalamin II complex. The use of cyanocobalamin may be preferred in patients with these conditions.

Osteoporosis

Moderate:

esomeprazole

Esomeprazole 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.

Pseudomembranous Colitis

Major:

esomeprazole

Esomeprazole 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.

Renal Dysfunction

Moderate:

Crystal B-12

The cyanocobalamin in Crystal B-12 has a moderate potential interaction with Renal Dysfunction.

Cyanocobalamin products contain aluminum that may be toxic and may reach toxic levels with prolonged parenteral administration if kidney function is impaired. Premature neonates are particularly at risk because their kidneys are immature, and they require large amounts of calcium and other solutions which also contain aluminum. Research indicates that patients with impaired kidney function, including premature neonates, who receive parenteral levels of aluminum greater than 4-5 mcg/kg/day accumulate aluminum at levels associated with central nervous system and bone toxicity. Caution and monitoring are recommended.

More resources

Crystal B-12

A total of 16 drugs are known to interact with Crystal B-12.

esomeprazole

A total of 236 drugs are known to interact with esomeprazole.

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.