Chlorthalidone — Thiazide-like diuretic. Study the mechanism, listed uses and warnings from the US label on one sourced card.
Generic name
Chlorthalidone
Class
Thiazide-like diuretic
Mechanism
A long-acting oral diuretic that increases sodium and chloride excretion. Its site of action appears to be the cortical diluting segment of the ascending limb of Henle’s loop; the antihypertensive mechanism is not wholly clear.
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.
Label date: 20250327 · 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.
On both cards: Common side effects — Nausea; Dizziness; Headache · Interactions — Lithium
Only on the Triamterene / Hydrochlorothiazide card: Used for — Hypertension or edema with hypokalemia on HCTZ; Thiazide need where hypokalemia can't be risked · Common side effects — Fatigue; Dry mouth · Warnings — Hyperkalemia (contraindicated); Other potassium-conserving agents or supplements; Anuria / significant renal impairment · Interactions — Other antihypertensives; Potassium supplements
Mechanism: Olmesartan blocks angiotensin II effects, amlodipine blocks calcium entry into vascular smooth muscle, and HCTZ promotes sodium and chloride excretion.
On both cards: Common side effects — Dizziness; Headache · Interactions — Lithium
Only on the Olmesartan / Amlodipine / Hydrochlorothiazide card: Used for — Hypertension requiring the selected olmesartan/amlodipine/hydrochlorothiazide combination; not indicated for initial therapy · Common side effects — Peripheral edema; Fatigue; Muscle spasms · Warnings — Hypotension in volume-depleted patients; Fluid and electrolyte imbalance; Sprue-like enteropathy · Interactions — NSAIDs; Aliskiren (in diabetes)
Mechanism: Affects distal renal tubular electrolyte reabsorption and increases sodium and chloride excretion. The selected label describes the mechanism of its antihypertensive effect as unknown.
On both cards: Common side effects — Nausea; Photosensitivity
Only on the Hydrochlorothiazide card: Used for — Hypertension, alone or with other antihypertensive medicines; Adjunctive treatment of edema associated with congestive heart failure or hepatic cirrhosis; Edema associated with specified forms of renal dysfunction · Common side effects — Orthostatic hypotension; Weakness · Warnings — Contraindicated in anuria / sulfonamide allergy; Electrolyte imbalance (e.g., hypokalemia); May activate systemic lupus erythematosus · Interactions — Lithium (toxicity); Cholestyramine / colestipol; Antidiabetic drugs
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.
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