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Nizatidine Capsules and Tablets and Theo-Dur

Determining the interaction of Nizatidine Capsules and Tablets and Theo-Dur and the possibility of their joint administration.

Check result:
Nizatidine Capsules and Tablets <> Theo-Dur
Relevance: 14.08.2022 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:

Using theophylline together with nizatidine may increase the effects of theophylline. Contact your doctor if you experience nausea, vomiting, insomnia, tremors, restlessness, uneven heartbeats, and seizure (convulsions). If your doctor does prescribe these medications together, you may need a dose adjustment or special test to safely use both medications. 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: Cimetidine may increase theophylline plasma concentrations by as much as 70%. The mechanism is related to inhibition of liver CYP450 enzymes responsible for theophylline metabolism. Although controlled studies have not demonstrated an interaction with ranitidine, famotidine, or nizatidine, and they do not have enzyme-inhibiting properties, there have been rare case reports of increased theophylline concentrations and/or toxicity with each of these agents. Patients with chronic obstructive pulmonary disease, congestive heart failure, or cirrhosis may have slower theophylline clearance rates; therefore, they may be at greater risk of developing theophylline toxicity.

MANAGEMENT: Clinical monitoring of patient response, tolerance, and laboratory theophylline serum concentrations is recommended. Patients should be advised to report any signs of theophylline toxicity including nausea, vomiting, diarrhea, headache, restlessness, insomnia, or irregular heartbeat to their physician.

References
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  • Lin JH, Chremos AN, Chiou R, Yeh KC, Williams R "Comparative effect of famotidine and cimetidine on the pharmacokinetics of theophylline in normal volunteers." Br J Clin Pharmacol 24 (1987): 669-72
  • Kehoe WA, Sands CD, Long LF, et al "Effect of ranitidine on theophylline metabolism in healthy Koreans living in China." Ann Pharmacother 30 (1996): 133-7
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  • Boehning W "Effect of cimetidine and ranitidine on plasma theophylline in patients with chronic obstructive airways disease treated with theophylline and corticosteroids." Eur J Clin Pharmacol 38 (1990): 43-5
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Nizatidine Capsules and Tablets

Generic Name: nizatidine

Brand name: Axid, Axid AR, Axid Pulvules

Synonyms: Nizatidine

Theo-Dur

Generic Name: theophylline

Brand name: Elixophyllin, Theo-24, Respbid, T-Phyl, Aerolate III, Slo-Bid Gyrocaps, Slo-Phyllin, Theobid, Theo-Dur, Theolair, Theovent, Bronkodyl, Theo-X, Theo-Time, Theochron, Slo-Phyllin 125, Theoclear LA-130, Aerolate JR, Theolair-SR, Theoclear LA-260, Quibron-T, Quibron-T/SR, Uniphyl, Uni-Dur, Aerolate SR, Slo-Phyllin 80, Theoclear-80, Theo-Dur Sprinkles, Theosol-80, Asmalix, Aquaphyllin, Truxophyllin, Slo-Phyllin 250, TheoCap

Synonyms: Theo-Dur (Oral)

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.

Interaction with food and lifestyle