Drug interactions
Bendroflumethiazide + Timolol
Severity: Minor
Bendroflumethiazide and Timolol: minor 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
Thiazides lower potassium while beta-blockers have little clinically significant effect on it, so no meaningful potassium interaction is expected. Combined use is common for hypertension, with possible additive blood pressure lowering and some impairment of glucose tolerance.
What this interaction means in plain words
Bendroflumethiazide and Timolol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Additive antihypertensive effects, with thiazide-induced hypokalemia and metabolic effects that may be additive with beta-blocker effects on glucose.
What to do
Monitor blood pressure, serum potassium and glucose periodically as in routine care of patients on these drugs.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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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
Frequently asked questions
Can I take Bendroflumethiazide with Timolol?
MediHelp rates the interaction as minor. Bendroflumethiazide and Timolol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Thiazides lower potassium while beta-blockers have little clinically significant effect on it, so no meaningful potassium interaction is expected. Combined use is common for hypertension, with possible additive blood pressure lowering and some impairment of glucose tolerance.
How serious is the interaction between Bendroflumethiazide and Timolol?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure, serum potassium and glucose periodically as in routine care of patients on these drugs.
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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