Lisinopril / Hydrochlorothiazide: study card

Lisinopril / Hydrochlorothiazide — ACE inhibitor + thiazide diuretic. Study the mechanism, listed uses and warnings from the US label on one sourced card.

Generic name
Lisinopril / Hydrochlorothiazide
Class
ACE inhibitor + thiazide diuretic
Mechanism
Lisinopril inhibits ACE, lowering angiotensin II and aldosterone; hydrochlorothiazide is a thiazide diuretic.
Used for
Hypertension when this fixed-dose combination is appropriate; it is not indicated for initial therapy
Common side effects
Dizziness; Headache; Cough; Fatigue; Orthostatic effects
Boxed warning
Fetal toxicity: drugs acting on the renin-angiotensin system can injure or kill the developing fetus; stop when pregnancy is detected.
Warnings
History of ACE inhibitor angioedema; Anuria / sulfonamide hypersensitivity; Contraindicated with sacubitril (neprilysin inhibitor)
Interactions
Diuretics (hypotension); NSAIDs incl. COX-2 inhibitors; Dual RAS blockade (ARBs, aliskiren)

Brand questions use only name pairings verified against the linked product source. Unverified pairings are withheld from these questions; the other study content remains available.

Drug class families: ACE inhibitors · Thiazide and thiazide-like diuretics

Read the source label ↗

Label date: 20261012 · For learning, not clinical decisions. US label and brand information; always consult the current source.

Source snapshot checked: 2026-10-21. The source document and selected fields were compared. The complete card has not had an independent clinical review.

Pronunciation

Lisinopril: ly-SIN-oh-pril · Hydrochlorothiazide: hye-droe-klor-oh-THYE-a-zide

Pronunciation is shown for the US English generic name.

Other drugs in the same class

ACE inhibitors: Amlodipine / Benazepril, Benazepril, Enalapril, Ramipril

Thiazide and thiazide-like diuretics: Losartan / Hydrochlorothiazide, Olmesartan / Amlodipine / Hydrochlorothiazide, Triamterene / Hydrochlorothiazide, Chlorthalidone

Body system

Cardiovascular · 47 Drug cards

Compare with related cards

Enalapril

Same class family: ACE inhibitors

Mechanism: Hydrolyzed to enalaprilat, which inhibits ACE, blocking angiotensin II formation and aldosterone secretion.

On both cards: Common side effects — Dizziness; Headache; Cough; Fatigue

Only on the Enalapril card: Used for — Hypertension in adults and children aged 1 month and older; not recommended in neonates or children with GFR below 30 mL/min/1.73 m²; Symptomatic heart failure, usually with diuretics and digitalis; Reduction of overt heart failure and related hospitalization in clinically stable, asymptomatic left ventricular dysfunction with ejection fraction at or below 35% · Common side effects — Rash · Warnings — Contraindicated with previous ACE-inhibitor-related angioedema or hereditary/idiopathic angioedema; Hypotension and hyperkalemia; Concomitant neprilysin inhibitor use is contraindicated · Interactions — Neprilysin inhibitors; ARBs / aliskiren (dual RAS blockade)

Ramipril

Same class family: ACE inhibitors

Mechanism: Ramiprilat inhibits ACE, blocking conversion of angiotensin I to angiotensin II and reducing aldosterone.

On both cards: Common side effects — Dizziness; Headache; Cough; Fatigue

Only on the Ramipril card: Used for — Hypertension in adults; Reduction of myocardial infarction, stroke or cardiovascular death in adults aged 55 years and older with coronary disease, prior stroke, peripheral vascular disease, or diabetes plus another labeled cardiovascular risk factor · Warnings — Angioedema; Hypotension / hyperkalemia; Renal impairment · Interactions — Diuretics; NSAIDs; mTOR or neprilysin inhibitors

Lisinopril

Same class family: ACE inhibitors

Mechanism: Inhibits angiotensin-converting enzyme, blocking conversion of angiotensin I to angiotensin II and suppressing the renin-angiotensin-aldosterone system.

On both cards: Common side effects — Dizziness; Headache; Cough

Only on the Lisinopril card: Used for — Hypertension in adults and children aged 6 years and older; Adjunctive therapy for heart failure; Reduction of mortality after acute myocardial infarction in hemodynamically stable patients treated within 24 hours · Common side effects — Hypotension; Chest pain · Warnings — Angioedema; Hyperkalemia; Renal impairment · Interactions — Diuretics; NSAIDs; Lithium

An item counts as shared only when both cards use the same wording. If a card does not list an item, that is not a statement that the effect never occurs.

Boxed warnings on related cards

Same boxed-warning wording on: Losartan / Hydrochlorothiazide

Lisinopril: Drugs acting on the renin-angiotensin system can cause fetal injury and death; discontinue when pregnancy is detected.

Olmesartan / Amlodipine / Hydrochlorothiazide: Fetal toxicity: drugs acting on the renin-angiotensin system can injure or kill the fetus; stop when pregnancy is detected.

Triamterene / Hydrochlorothiazide: Hyperkalemia can occur with potassium-conserving diuretics; risk is higher in renal impairment, diabetes and the elderly.

Amlodipine / Benazepril: Fetal toxicity: renin-angiotensin system drugs can injure or kill the fetus; stop when pregnancy is detected.