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Medihaler-Iso and Silenor

Determining the interaction of Medihaler-Iso and Silenor and the possibility of their joint administration.

Check result:
Medihaler-Iso <> Silenor
Relevance: 12.12.2023 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 doxepin together with isoproterenol can affect the rhythm of your heart. Let your doctor know if you have symptoms of irregular heartbeat, chest tightness, blurred vision or nausea. You may need a dose adjustment or special test if you 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: The concomitant use of isoproterenol and tricyclic antidepressants may increase the risk of arrhythmias, especially at high doses. The mechanism has not been delineated. Tachycardia has been reported in clinical studies. Rare cases of malignant cardiac arrhythmias have also been reported in patients who took oral isoproterenol and tricyclic antidepressants; however, causality was not clearly established due to excessive doses ingested and the presence of other drugs.

MANAGEMENT: Some authorities suggest that the initial rate and dose of isoproterenol should be reduced in patients taking tricyclic antidepressants, and then titrated, as is usual according to clinical response to avoid the risk of developing hypertension or arrhythmias. Patients receiving this combination should be monitored and advised to notify their physician if they experience a fast or irregular pulse.

References
  • Kadar D "Letter: Amitriptyline and isoproterenol: fatal drug combination." Can Med Assoc J 112 (1975): 556-7
  • Boakes AJ, Laurence DR, Teoh PC, Barar FS, Benedikter LT, Pritchard BN "Interactions between sympathomimetic amines and antidepressant agents in man." Br Med J 1 (1973): 311-5
  • Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
Medihaler-Iso

Generic Name: isoproterenol

Brand name: Isuprel

Synonyms: n.a.

Silenor

Generic Name: doxepin

Brand name: Silenor, Sinequan, Sinequan

Synonyms: n.a.

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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