Is it safe to take benadryl and quinapril?

Potential Interactions and Safety Concerns

Taking Benadryl (diphenhydramine) and quinapril together may pose some safety risks.

What happens if I take them together?

Combining Benadryl with quinapril, an ACE inhibitor used to treat high blood pressure and heart failure, may increase the risk of dry mouth, dizziness, and drowsiness. This is because diphenhydramine, an antihistamine, can exacerbate quinapril's effects on blood pressure.

How can I minimize potential side effects?

To minimize risks, inform your doctor about both medications and follow these guidelines:

- Monitor your blood pressure regularly while taking quinapril. [1]
- Limit or avoid drinking alcohol, as it may worsen side effects.
- Stay hydrated to prevent dry mouth.
- Be cautious when standing up or changing positions, as dizziness may occur.
- Avoid driving or operating heavy machinery if you experience drowsiness.

What are potential side effects I should watch out for?

- Dry mouth [1]
- Dizziness [2]
- Drowsiness [2]
- Increased heart rate or blood pressure [3]
- Urinary retention or difficulty urinating in men [4]

DrugInteractions.org suggests that patients on ACE inhibitors, like quinapril, should not take diphenhydramine unless under close medical supervision. Always consult your doctor or pharmacist before combining Benadryl with any other medication.

References:
[1] Medications.org - Quinapril (Accupril)
[2] RxList - Diphenhydramine (Benadryl)
[3] EverydayHealth - High Blood Pressure and Heart Failure
[4] Healthline - Urinary Retention

Sources:

- Drug Interactions
- Medications.org
- RxList
- EverydayHealth
- Healthline