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PCE Dispertab and Phenytoin Infatabs

Determining the interaction of PCE Dispertab and Phenytoin Infatabs and the possibility of their joint administration.

Check result:

PCE Dispertab <> Phenytoin Infatabs

Relevance: 03.12.2022 Reviewer: Shkutko P.M., M.D., in

In the database of official manuals used in the service creation an interaction registered by statistical results of studies was found, which can either lead to negative consequences for the patient health or strengthen a mutual positive effect. A doctor should be consulted to address the issue of joint drug administration.

Consumer:

Talk to your doctor before using erythromycin together with phenytoin. Combining these medications can alter the blood levels and effects of both medications. Specifically, erythromycin levels may decrease, which may make the medication less effective in treating your infection. At the same time, phenytoin levels may increase, and you may experience more frequent and/or severe side effects. Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Contact your doctor if you experience nausea, vomiting, twitching eye movements, blurred vision, slurred speech, loss of balance or coordination, tremors, sluggishness, confusion, or hallucinations, as these may be symptoms of excessive effects of phenytoin. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Professional:

MONITOR: Coadministration with phenytoin may reduce the plasma concentrations and antimicrobial efficacy of erythromycin and other macrolide antibiotics. The mechanism is induction of CYP450 3A metabolism by phenytoin. Additionally, plasma concentrations of phenytoin may be increased. One study has suggested that the pharmacokinetic disposition of phenytoin is not significantly altered in patients receiving erythromycin. However, occasional large changes in phenytoin clearance were noted in some patients.

MANAGEMENT: If concomitant use is medically necessary, caution and monitoring for altered efficacy and safety of both medications is recommended.

References

Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
Canadian Pharmacists Association "e-CPS. Available from: URL: http://www.pharmacists.ca/function/Subscriptions/ecps.cfm?link=eCPS_quikLink."
Cerner Multum, Inc. "Australian Product Information." O 0
Bachmann K, Schwartz JI, Forney RB Jr, Jauregui L "Single dose phenytoin clearance during erythromycin treatment." Res Commun Chem Pathol Pharmacol 46 (1984): 207-17
Milne RW, Coulthard K, Nation RL, et al "Lack of effect of erythromycin on the pharmacokinetics of single oral doses of phenytoin." Br J Clin Pharmacol 26 (1988): 330-3

PCE Dispertab

Generic Name: erythromycin

Brand name: EES. Granules, EES-400 Filmtab, EryPed 200, EryPed 400, Ery-Tab, Erythrocin Lactobionate, Erythrocin Stearate Filmtab, PCE Dispertab, E. E. S, EryPed, Erythrocin, Erythromycin Filmtabs, Erythromycin Lactobionate - IV

Synonyms: PCE Dispertab (Oral), PCE, PCE (Oral)

What is PCE Dispertab?

Phenytoin Infatabs

Generic Name: phenytoin

Brand name: Dilantin, Phenytek, Dilantin Infatabs, Phenytoin Sodium, Prompt

Synonyms: Phenytoin

What is Phenytoin Infatabs?

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In the course of checking the drug compatibility and interactions, data from the following reference sources was used: Drugs.com, Rxlist.com, Webmd.com, Medscape.com.

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