Drug interactions
Hydrochlorothiazide-olmesartan + Midodrine
Severity: Moderate
Hydrochlorothiazide-olmesartan and Midodrine: 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
Midodrine raises blood pressure and directly opposes the antihypertensive effect of the combination. A pharmacokinetic effect on midodrine clearance is theoretical.
What this interaction means in plain words
Hydrochlorothiazide-olmesartan and Midodrine 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.
Hydrochlorothiazide-olmesartan belongs to Cardiovascular; Midodrine belongs to Miscellaneous.
Why it happens
Pharmacodynamic opposition: alpha-1 agonist vasoconstriction versus diuretic and angiotensin receptor blocker blood pressure lowering.
What to do
Monitor blood pressure, including supine readings, and reassess whether both therapies are needed.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Hydrochlorothiazide-olmesartan and Midodrine, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Hydrochlorothiazide-olmesartan
- Aliskiren + Hydrochlorothiazide-olmesartan Contraindicated
- Dofetilide + Hydrochlorothiazide-olmesartan Contraindicated
- Hydrochlorothiazide-olmesartan + Sparsentan Contraindicated
- Acemetacin + Hydrochlorothiazide-olmesartan Major
- Amifostine + Hydrochlorothiazide-olmesartan Major
- Amiloride + Hydrochlorothiazide-olmesartan Major
Other interactions of Midodrine
- Isocarboxazid + Midodrine Contraindicated
- Midodrine + Phenelzine Contraindicated
- Midodrine + Tranylcypromine Contraindicated
- Dextroamphetamine + Midodrine Major
- Dihydroergotamine intranasal + Midodrine Major
- Dihydroergotamine + Midodrine Major
Frequently asked questions
Can I take Hydrochlorothiazide-olmesartan with Midodrine?
MediHelp rates the interaction as moderate. Hydrochlorothiazide-olmesartan and Midodrine 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. Midodrine raises blood pressure and directly opposes the antihypertensive effect of the combination. A pharmacokinetic effect on midodrine clearance is theoretical.
How serious is the interaction between Hydrochlorothiazide-olmesartan and Midodrine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure, including supine readings, and reassess whether both therapies are needed.
What other medicines interact with Hydrochlorothiazide-olmesartan?
MediHelp also lists interactions of Hydrochlorothiazide-olmesartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-olmesartan page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
