Drug interactions
Prilocaine + Timolol
Severity: Moderate
Prilocaine and Timolol: moderate interaction.
Last updated
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
Systemic exposure to prilocaine may cause hypotension and bradycardia, and a beta-blocker can worsen these effects by blunting compensatory responses. The risk is greater with high doses or regional blocks.
What this interaction means in plain words
Prilocaine and Timolol can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Prilocaine belongs to Central Nervous System; Timolol belongs to Cardiovascular.
Why it happens
Additive cardiovascular depression from local anesthetic sodium channel blockade and beta-adrenergic blockade.
What to do
Use the lowest effective prilocaine dose with aspiration before injection, and monitor heart rate and blood pressure. Have treatment for bradycardia and hypotension available.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Timolol
- Acebutolol + Timolol Major
- Albuterol + Timolol Major
- Aldesleukin + Timolol Major
- Amifostine + Timolol Major
- Amiodarone + Timolol Major
- Arformoterol + Timolol Major
Other interactions of Prilocaine
- Bupivacaine implant + Prilocaine Major
- Nitric oxide + Prilocaine Major
- Phenazopyridine + Prilocaine Major
- Prilocaine + Propranolol Moderate
- Hyaluronidase + Prilocaine Minor
- Nadolol + Prilocaine Minor
Frequently asked questions
Can I take Prilocaine with Timolol?
MediHelp rates the interaction as moderate. Prilocaine and Timolol can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Systemic exposure to prilocaine may cause hypotension and bradycardia, and a beta-blocker can worsen these effects by blunting compensatory responses. The risk is greater with high doses or regional blocks.
How serious is the interaction between Prilocaine and Timolol?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective prilocaine dose with aspiration before injection, and monitor heart rate and blood pressure. Have treatment for bradycardia and hypotension available.
What other medicines interact with Timolol?
MediHelp also lists interactions of Timolol with, for example, Acebutolol, Albuterol, Aldesleukin. The full list is on the Timolol page.
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