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Drug Interactions between Betagan C-Cap and gadopentetate dimeglumine

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

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Interactions between your drugs

Moderate

levobunolol ophthalmic gadopentetate dimeglumine

Applies to: Betagan C-Cap (levobunolol ophthalmic) and gadopentetate dimeglumine

MONITOR: Limited data suggest that patients receiving beta-blockers may have an increased risk of severe hypotensive and/or hypersensitivity reactions to parenteral contrast media. In addition, allergic/anaphylactoid reactions in these patients may be more difficult to treat. The mechanism is unknown. Theoretically, beta-blocker ophthalmic solutions may also interact, as they are systemically absorbed and can produce clinically significant systemic effects even at low or undetectable plasma levels.

MANAGEMENT: Patients who have received beta-blockers should be closely monitored for adverse reactions to contrast media. If anaphylaxis occurs, clinicians should be aware that beta-blockers may attenuate the response to epinephrine. Thus, larger doses of epinephrine may be necessary to overcome the bronchospasm, although such large doses can also cause excessive alpha-adrenergic stimulation resulting in hypertension, reflex bradycardia, heart block, and possible potentiation of bronchospasm. Alternative treatments recommended include vigorous supportive care (e.g., fluids) and the use of parenteral beta-agonists for bronchospasm and norepinephrine for hypotension.

References

  1. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  2. Canadian Pharmacists Association "e-CPS. http://www.pharmacists.ca/function/Subscriptions/ecps.cfm?link=eCPS_quikLink" (2006):
  3. EMEA. European Medicines Agency "EPARs. European Union Public Assessment Reports. http://www.ema.europa.eu/ema/index.jsp?curl=pages/includes/medicines/medicines_landingpage.jsp&mid" (2007):
  4. Cerner Multum, Inc. "Australian Product Information." O 0
View all 4 references

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Drug and food interactions

No alcohol/food interactions were found. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

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

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