Drug interactions
Glimepiride + Timolol
Severity: Moderate
Glimepiride 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
Nonselective beta-blockers can mask adrenergic warning symptoms of hypoglycemia such as tremor and palpitations, and may impair recovery from it. Sweating is usually preserved. Glycemic control may also shift.
What this interaction means in plain words
Glimepiride 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.
Glimepiride belongs to Endocrine; Timolol belongs to Cardiovascular.
Why it happens
Beta-blockade masks sympathetic hypoglycemia symptoms and impairs glycogenolysis.
What to do
Counsel the patient to recognize hypoglycemia through sweating and hunger, and monitor blood glucose more frequently. Adjust the sulfonylurea dose if hypoglycemia occurs.
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 Glimepiride
Frequently asked questions
Can I take Glimepiride with Timolol?
MediHelp rates the interaction as moderate. Glimepiride 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. Nonselective beta-blockers can mask adrenergic warning symptoms of hypoglycemia such as tremor and palpitations, and may impair recovery from it. Sweating is usually preserved. Glycemic control may also shift.
How serious is the interaction between Glimepiride 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: Counsel the patient to recognize hypoglycemia through sweating and hunger, and monitor blood glucose more frequently. Adjust the sulfonylurea dose if hypoglycemia occurs.
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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