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hydrochlorothiazide/triamterene vs lisinopril

Side-by-side comparison of hydrochlorothiazide/triamterene and lisinopril. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

minor Known Drug Interaction

Drug Interactions Lisinopril Hypotension - Patients on Diuretic Therapy: Patients on diuretics and especially those in whom diuretic therapy was recently instituted, may occasionally experience an excessive reduction of blood pressure after initiation of therapy with lisinopril. The possibility of hypotensive effects with lisinopril can be minimized by either discontinuing the diuretic or increasing the salt intake prior to initiation of treatment with lisinopril. If it is necessary to continue the diuretic, initiate therapy with lisinopril at a dose of 5 mg daily, and provide close...

Recommendation: Your doctor may start you on a lower dose of the new medicine to keep your blood pressure steady. Be sure to stand up slowly and tell your doctor if you feel faint.

Drug Class
hydrochlorothiazide/triamterene Thiazide / Potassium-Sparing Diuretic Combination
lisinopril ACE Inhibitor
Type
hydrochlorothiazide/triamterene Prescription
lisinopril Prescription
Summary
hydrochlorothiazide/triamterene

This medicine combines lisinopril and hydrochlorothiazide to lower high blood pressure. Lowering blood pressure reduces the risk of strokes and heart attacks.

lisinopril

No summary available.

What It Treats
hydrochlorothiazide/triamterene

This medicine is used to treat high blood pressure. High blood pressure can lead to serious problems like stroke and heart attack if it is not treated. Lowering your blood pressure can help prevent these problems. You may need more than one medicine to control your blood pressure.

lisinopril

Information not available.

How It Works
hydrochlorothiazide/triamterene

Lisinopril is an ACE inhibitor that widens blood vessels. Hydrochlorothiazide is a diuretic that helps your body get rid of extra salt and water. This combination helps to lower blood pressure.

lisinopril

Information not available.

Common Side Effects
hydrochlorothiazide/triamterene
  • Dizziness
  • Headache
  • Cough
  • Feeling tired
  • Lightheadedness when standing up
lisinopril
  • Dizziness
  • Headache
  • Cough
  • Feeling tired
  • Diarrhea
FAERS Reports
hydrochlorothiazide/triamterene
  • Feeling tired 10,013
  • Feeling sick to your stomach 9,706
  • Loose stools 8,311
  • General pain 7,665
  • Difficulty breathing 7,584
lisinopril
  • Feeling tired 19,347
  • Feeling sick to your stomach 17,995
  • Loose stools 16,772
  • Difficulty breathing 13,649
  • Discomfort 13,304
Serious Warnings
hydrochlorothiazide/triamterene

This medicine can harm your unborn baby. If you become pregnant, stop taking this medicine and tell your doctor right away. You should not take this medicine if you have ever had a severe allergic reaction (angioedema) to an ACE inhibitor or if you cannot urinate.

lisinopril

No specific warnings noted.

Pregnancy
hydrochlorothiazide/triamterene

This medicine can cause harm or death to an unborn baby. Do not take this medicine if you are pregnant. Talk to your doctor about other blood pressure medicines if you are breastfeeding.

lisinopril

No pregnancy information available.

Also Compare, Nearby Drugs

How to Read This hydrochlorothiazide/triamterene vs lisinopril Comparison

hydrochlorothiazide/triamterene is classified in the Thiazide / Potassium-Sparing Diuretic Combination drug class, while lisinopril sits within the ACE Inhibitor class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, hydrochlorothiazide/triamterene has 43,279 submissions while lisinopril has 81,067. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to taking these two types of blood pressure medicines together can cause your blood pressure to drop too low, especially when you first start. this can make you feel very dizzy or lightheaded.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between hydrochlorothiazide/triamterene and lisinopril - always consult your physician or pharmacist first.

Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.