Drug interactions
Fosinopril + Temsirolimus
Severity: Major
Fosinopril and Temsirolimus: major interaction.
Last updated Sources: US FDA label
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Combining an ACE inhibitor with an mTOR inhibitor such as temsirolimus increases the risk of angioedema. Swelling of the face, lips, tongue or airway can be serious.
What this interaction means in plain words
Fosinopril and Temsirolimus can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Fosinopril belongs to Cardiovascular; Temsirolimus belongs to Oncology.
Why it happens
Both drugs impair bradykinin breakdown: ACE inhibitors block kininase II and mTOR inhibitors may reduce dipeptidyl peptidase IV activity.
What to do
Counsel patients to seek urgent care for any swelling of the face, lips or tongue. Stop fosinopril and consider an alternative antihypertensive class if angioedema occurs.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
Other interactions of Fosinopril
- Aliskiren + Fosinopril Contraindicated
- Fosinopril + Protein a column Contraindicated
- Fosinopril + Sacubitril / valsartan Contraindicated
- Fosinopril + Sacubitril-valsartan Contraindicated
- Amifostine + Fosinopril Major
- Amiloride + Fosinopril Major
Other interactions of Temsirolimus
- Bcg vaccine live + Temsirolimus Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Temsirolimus Contraindicated
- Measles mumps and rubella vaccine live + Temsirolimus Contraindicated
- Measles mumps rubella and varicella vaccine live + Temsirolimus Contraindicated
- Measles vaccine + Temsirolimus Contraindicated
- Rotavirus oral vaccine live + Temsirolimus Contraindicated
Frequently asked questions
Can I take Fosinopril with Temsirolimus?
MediHelp rates the interaction as major. Fosinopril and Temsirolimus can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Combining an ACE inhibitor with an mTOR inhibitor such as temsirolimus increases the risk of angioedema. Swelling of the face, lips, tongue or airway can be serious.
How serious is the interaction between Fosinopril and Temsirolimus?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel patients to seek urgent care for any swelling of the face, lips or tongue. Stop fosinopril and consider an alternative antihypertensive class if angioedema occurs.
What other medicines interact with Fosinopril?
MediHelp also lists interactions of Fosinopril with, for example, Aliskiren, Protein a column, Sacubitril / valsartan. The full list is on the Fosinopril page.
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