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Drug Interactions between isoproterenol / phenylephrine and landiolol

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Major

phenylephrine landiolol

Applies to: isoproterenol / phenylephrine and landiolol

Consumer information for this interaction is not currently available.

MONITOR CLOSELY: Coadministration of landiolol with positive inotropes, vasoconstrictors, or sympathomimetic agents may decrease the therapeutic effects of landiolol. According to the package labeling, concomitant use reduced landiolol's heart rate and blood pressure lowering effects. In addition, concomitant dobutamine also reduced landiolol's effect on PR-interval prolongation.

MANAGEMENT: If coadministration is clinically necessary, careful titration of the landiolol infusion and close hemodynamic monitoring is advised. Consultation with package labeling and relevant institutional protocols may be advisable for further guidance.

Moderate

isoproterenol phenylephrine

Applies to: isoproterenol / phenylephrine and isoproterenol / phenylephrine

Using isoproterenol together with phenylephrine may increase cardiovascular side effects such as elevations in heart rate and blood pressure or irregular heart rhythm. Talk to your doctor if you have any questions or concerns, particularly if you have a history of high blood pressure, arrhythmia, or heart disease. Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring 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.

Moderate

isoproterenol landiolol

Applies to: isoproterenol / phenylephrine and landiolol

Consumer information for this interaction is not currently available.

GENERALLY AVOID: Some beta-blockers may antagonize the bronchodilatory, hypotensive, and tachycardic effects of isoproterenol. The mechanism is blockade of beta-adrenergic receptors, which leads to bronchoconstriction, vasodilation, and increased heart rate. Beta-blockers have been used successfully to treat catecholamine or isoproterenol-induced tachyarrhythmias.

MANAGEMENT: This combination should generally be avoided. Patients who are receiving isoproterenol for cardiac conditions should be closely monitored for adequate therapeutic effect if a beta blocker is added. If no alternative exists, small doses of a B-1 selective beta-blocker (e.g., acebutolol, atenolol, betaxolol, bisoprolol, or metoprolol) may be preferable; however, respiratory status should be closely monitored in patients with obstructive pulmonary disease.

Drug and food interactions

Moderate

isoproterenol food

Applies to: isoproterenol / phenylephrine

Both isoproterenol and caffeine can increase blood pressure and heart rate, and combining them may enhance these effects. Talk to your doctor before using these medications, especially if you have a history of high blood pressure or heart disease. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Contact your doctor if your condition changes or you experience increased side effects. 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.

Moderate

phenylephrine food

Applies to: isoproterenol / phenylephrine

Both phenylephrine and caffeine can increase blood pressure and heart rate, and combining them may enhance these effects. Talk to your doctor before using these medications, especially if you have a history of high blood pressure or heart disease. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Contact your doctor if your condition changes or you experience increased side effects. 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.

Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.


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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.