HYDROCHLOROTHIAZIDE 12.5 mg Tablet, 1,000-count
🆔 Identity & classification
Where does this data come from?
🏷️ RxNorm drug class
This medicine belongs to the Thiazide Diuretic class.
Where does this data come from?
🏭 Manufacturer & labeler
Where does this data come from?
🩺 Clinical
Hydrochlorothiazide is used alone or in combination with other medications to treat high blood pressure. Hydrochlorothiazide is used to treat edema (fluid retention; excess fluid held in body tissues) caused by various medical problems, including heart, kidney, and liver disease and to treat edema caused by using certain medications including estrogen and corticosteroids. Hydrochlorothiazide is in a class of medications called diuretics ('water pills'). It works by causing the kidneys to get rid of unneeded water and salt from the body into the urine. High blood pressure is a common condition...
Read the full MedlinePlus article ↗- It's a water pill — a diuretic — that helps your kidneys flush out extra salt and water. This lowers your blood pressure and reduces swelling (edema) caused by conditions like hear...
- What exactly is hydrochlorothiazide supposed to do for me?
- Most people take it once daily in the morning — that way the extra trips to the bathroom happen during the day, not overnight. Taking it with food slightly reduces how much your bo...
- When should I take it, and does it matter if I take it with food?
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Hydrochlorothiazide — tap one for details:
Hydrochlorothiazide may be associated with lower levels of 8 nutrients — worth a chat with your pharmacist, not a cause for alarm.
Where does this data come from?
Ask a licensed pharmacist directly — free, answered by our team.
💊 What it looks like
Where does this data come from?
🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
-
UNII 3SY5LH9PMK
Anhydrous lactose is a milk sugar with no water content. It acts as a filler and binder in tablets and capsules, adding bulk and helping ingredients stick together.
-
UNII CQ3XH3DET6
D&C Yellow No. 10 Aluminum Lake is a yellow colorant made by combining a dye with aluminum salts. It's used in medicines to add color for product identification and visual appeal.
-
UNII 6T47AS764T
Red 40 Lake is a synthetic colorant made by combining Red 40 dye with aluminum hydroxide. It's used to give tablets, capsules, and other medicines a red or pink color for identification and appearance.
-
UNII 70097M6I30
Magnesium stearate is a salt made from magnesium and stearic acid, a fatty substance. It's used in tablets and capsules as a lubricant and glidant to help ingredients flow smoothly during manufacturing and prevent sticking.
-
UNII 5856J3G2A2
A starch-based powder made from potatoes and processed with sodium. It acts as a disintegrant, helping the tablet or capsule break apart quickly in the stomach so the medicine can be absorbed.
-
UNII O8232NY3SJ
A plant-based carbohydrate derived from corn kernels. It acts as a filler to add bulk, a binder to hold ingredients together, and a disintegrant to help the tablet break apart in your stomach for absorption.
6 inactive ingredients listed in the exact product block matched to this NDC.
Where does this data come from?
ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
Why might an inactive ingredient be missing?
Can inactive ingredients matter?
💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per ea | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $0.037 | $37.30 / 1000 tablets |
| Medicaid paysCMS SDUD · 12 mo | $0.2049 | $204.90 / 1000 tablets |
| Medicare drug plans payPart D · Q2 2026 | $0.0822 | $82.20 / 1000 tablets |
Where does this data come from?
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Hydrochlorothiazide 12.5 mg 00172-3444-60 | Teva | 100 tablets | $0.037 | AB | Availability likely | — |
| Hydrochlorothiazide 12.5 mg 00228-2820-11 | Actavis | 100 tablets | $0.037 | AB | Availability likely | — |
| Hydrochlorothiazide 12.5 mg 16729-0182-01 | Accord | 100 tablets | $0.037 | AB | Availability likely | — |
| Hydrochlorothiazide 12.5 mgthis 23155-0764-10 | Heritage | 1000 tablets | $0.037 | AB | Availability likely | — |
| Hydrochlorothiazide 12.5 mg 29300-0485-01 | Unichem | 100 tablets | $0.037 | AB | Availability likely | — |
| Hydrochlorothiazide 12.5 mg 62135-0738-90 | Chartwell | 90 tablets | $0.037 | AB | Availability likely | — |
| Hydrochlorothiazide 12.5 mg 69315-0155-01 | Leading | 100 tablets | $0.037 | AB | Availability likely | — |
| Hydrochlorothiazide 12.5 mg 00615-8449-39 | NCS | 30 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 50090-1088-00 | A-S | 30 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 50090-6372-00 | A-S | 30 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 50090-6931-00 | A-S | 90 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 50090-7764-00 | A-S | 30 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 50090-7765-00 | A-S | 90 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 50090-7772-00 | A-S | 30 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 50090-7773-00 | A-S | 90 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 50090-7817-00 | A-S | 90 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 51407-0330-01 | Golden | 100 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 51655-0502-26 | Northwind | 90 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 51655-0674-26 | Northwind | 90 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 60760-0662-90 | St. | 90 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 63187-0553-30 | Proficient | 30 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 63629-7782-01 | Bryant | 30 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 67046-1664-03 | Coupler | 30 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 68071-3443-03 | NuCare | 30 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 68071-3608-03 | NuCare | 30 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 68071-3652-01 | NuCare | 100 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 68788-8813-01 | Preferred | 7 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 70518-4251-00 | REMEDYREPACK | 90 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 70518-4466-00 | REMEDYREPACK | 30 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 71335-9647-01 | Bryant | 30 tablets | — | AB | FDA listed | — |
| Hydrochlorothiazide 12.5 mg 70518-4736-00 | REMEDYREPACK | 30 tablets | — | AB | FDA listed | — |
Where does this data come from?
⏳ Availability & generic status
This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.
Where does this data come from?
🗺️ Medicaid utilization & spend
💊 Medicaid utilization by pack size
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
🔬 Reported adverse events (FAERS)
Top reported reactions
Age at onset
Reporter sex
Serious outcomes
Where does this data come from?
📦 Packaging — all sizes for this product
| Package NDC | Description | Per unit | Per pack | Marketing start | Status |
|---|---|---|---|---|---|
| 23155-0764-01 | 100 TABLET in 1 BOTTLE (23155-764-01) | $0.0373 / ea | $3.73 | 2023-05-02 | Active |
| 23155-0764-10 You're viewing this | 1000 TABLET in 1 BOTTLE (23155-764-10) | $0.0373 / ea | $37.30 | 2023-05-02 | Active |
You're viewing the largest of 2 pack sizes for this product.
This pack effectively ties for the lowest per-ea cost of the 2 priced pack sizes ($0.0373 NADAC).
This pack accounts for about 47% of this product's recent Medicaid fills; most go to the 100 tablets pack. See all packs ↓
Pack size FAQ
What quantity is in NDC 23155-0764-10?
What is the difference between NDC 23155-0764-10 and NDC 23155-0764-01?
What NDC number is used to bill for this package of HYDROCHLOROTHIAZIDE 12.5 mg Tablet?
Prices are the latest CMS NADAC pharmacy acquisition cost per NDC; per-pack figures are per-unit × pack quantity, shown only when the pack is denominated in the same measure NADAC prices.
📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
INDICATIONS AND USAGE Hydrochlorothiazide tablets are indicated as adjunctive therapy in edema associated with congestive heart failure, hepatic cirrhosis, and corticosteroid and estrogen therapy. Hydrochlorothiazide tablets have also been found useful in edema due to various forms of renal dysfunction such as nephrotic syndrome, acute glomerulonephritis, and chronic renal failure. Hydrochlorothiazide tablets are indicated in the management of hypertension either as the sole therapeutic agent or to enhance the effectiveness of other antihypertensive drugs in the more severe forms of hypertension.
Use in Pregnancy Routine use of diuretics during normal pregnancy is inappropriate and exposes mother and fetus to unnecessary hazard. Diuretics do not prevent development of toxemia of pregnancy, and there is no satisfactory evidence that they are useful in the treatment of toxemia. Edema during pregnancy may arise from pathologic causes or from the physiologic and mechanical consequences of pregnancy.
Thiazides are indicated in pregnancy when edema is due to pathologic causes, just as they are in the absence of pregnancy (see PRECAUTIONS, Pregnancy ). Dependent edema in pregnancy, resulting from restriction of venous return by the gravid uterus, is properly treated through elevation of the lower extremities and use of support stockings. Use of diuretics to lower intravascular volume in this instance is illogical and unnecessary.
During normal pregnancy there is hypervolemia which is not harmful to the fetus or the mother in the absence of cardiovascular disease. However, it may be associated with edema, rarely generalized edema. If such edema causes discomfort, increased recumbency will often provide relief.
Rarely this edema may cause extreme discomfort which is not relieved by rest. In these instances, a short course of diuretic therapy may provide relief and be appropriate.
⏱️ Dosage and Administration ▾
DOSAGE AND ADMINISTRATION Therapy should be individualized according to patient response. Use the smallest dosage necessary to achieve the required response. Adults For Edema The usual adult dosage is 25 to 100 mg daily as a single or divided dose.
Many patients with edema respond to intermittent therapy, i.e., administration on alternate days or on three to five days each week. With an intermittent schedule, excessive response and the resulting undesirable electrolyte imbalance are less likely to occur. For Control of Hypertension The usual initial dose in adults is 25 mg daily given as a single dose.
The dose may be increased to 50 mg daily, given as a single or two divided doses. Doses above 50 mg are often associated with marked reductions in serum potassium (see also PRECAUTIONS ). Patients usually do not require doses in excess of 50 mg of hydrochlorothiazide daily when used concomitantly with other antihypertensive agents.
Infants and Children For Diuresis and For Control of Hypertension The usual pediatric dosage is 0.5 to 1 mg per pound (1 to 2 mg/kg) per day in single or two divided doses, not to exceed 37.5 mg per day in infants up to 2 years of age or 100 mg per day in children 2 to 12 years of age. In infants less than 6 months of age, doses up to 1.5 mg per pound (3 mg/kg) per day in two divided doses may be required. ( See PRECAUTIONS, Pediatric Use .)
⛔ Contraindications ▾
CONTRAINDICATIONS Anuria. Hypersensitivity to this product or to other sulfonamide-derived drugs.
⚠️ Warnings ▾
WARNINGS Use with caution in severe renal disease. In patients with renal disease, thiazides may precipitate azotemia. Cumulative effects of the drug may develop in patients with imparied renal function.
Thiazides should be used with caution in patients with impaired hepatic function or progressive liver disease, since minor alterations of fluid and electrolyte balance may precipitate hepatic coma. Thiazides may add to or potentiate the action of other antihypertensive drugs. Sensitivity reactions may occur in patients with or without a history of allergy or bronchial asthma.
The possibility of exacerbation or activation of systemic lupus erythematosus has been reported. Lithium generally should not be given with diuretics (see PRECAUTIONS, Drug Interactions ). Acute Myopia and Secondary Angle-Closure Glaucoma Hydrochlorothiazide, a sulfonamide, can cause an idiosyncratic reaction, resulting in acute transient myopia and acute angle-closure glaucoma.
Symptoms include acute onset of decreased visual acuity or ocular pain and typically occur within hours to weeks of drug initiation. Untreated acute angle-closure glaucoma can lead to permanent vision loss. The primary treatment is to discontinue hydrochlorothiazide as rapidly as possible.
Prompt medical or surgical treatments may need to be considered if the intraocular pressure remains uncontrolled. Risk factors for developing acute angle-closure glaucoma may include a history of sulfonamide or penicillin allergy.
🤒 Adverse Reactions ▾
ADVERSE REACTIONS The following adverse reactions have been reported and, within each category, are listed in order of decreasing severity. Body as a Whole: Weakness. Cardiovascular: Hypotension including orthostatic hypotension (may be aggravated by alcohol, barbiturates, narcotics or antihypertensive drugs).
Digestive: Pancreatitis, jaundice (intrahepatic cholestatic jaundice), diarrhea, vomiting sialadenitis, cramping, constipation, gastric irritation, nausea, anorexia. Hematologic: Aplastic anemia, agranulocytosis, leukopenia, hemolytic anemia, thrombocytopenia. Hypersensitivity : Anaphylactic reactions, necrotizing angiitis (vasculitis and cutaneous vasculitis), respiratory distress including pneumonitis and pulmonary edema, photosensitivity, fever, urticaria, rash, purpura.
Metabolic: Electrolyte imbalance ( see PRECAUTIONS ), hyperglycemia, glycosuria, hyperuricemia. Musculosketetal: Muscle spasm. Nervous System/Psychiatric: Vertigo, paresthesias, dizziness, headache, restlessness.
Renal: Renal failure, renal dysfunction, interstitial nephritis. ( See WARNINGS .) Skin: Erythema multiforme including Stevens-Johnson syndrome, exfoliative dermatitis including toxic epidermal necrolysis, alopecia. Special Senses: Transient blurred vision, xanthopsia.
Urogenital: Impotence. Whenever adverse reactions are moderate or severe, thiazide dosage should be reduced or therapy withdrawn. Postmarketing Experience Non-melanoma Skin Cancer Hydrochlorothiazide is associated with an increased risk of non-melanoma skin cancer.
In a study conducted in the Sentinel System, increased risk was predominantly for squamous cell carcinoma (SCC) and in white patients taking large cumulative doses. The increased risk for SCC in the overall population was approximately 1 additional case per 16,000 patients per year, and for white patients taking a cumulative dose of ≥50,000 mg the risk increase was approximately 1 additional SCC case for every 6,700 patients per year. Call your doctor for medical advice about side effects.
To report SUSPECTED ADVERSE REACTION, contact Avet Pharmaceuticals Inc. at 1-866-901-DRUG (3784) or FDA at 1-800-FDA-1088 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
🔄 Drug Interactions ▾
Drug Interactions When given concurrently the following drugs may interact with thiazide diuretics. Alcohol, barbiturates or narcotics - potentiation of orthostatic hypotension may occur. Antidiabetic drugs - (oral agents and insulin) - dosage adjustment of the antidiabetic drug may be required.
Other antihypertensive drugs - additive effect or potentiation. Cholestyramine and colestipol resins - Absorption of hydrochlorothiazide is impaired in the presence of anionic exchange resins. Single doses of either cholestyramine or colestipol resins bind the hydrochlorothiazide and reduce its absorption from the gastrointestinal tract by up to 85 and 43 percent, respectively.
Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. Pressor amines (e.g., norepinephrine) - possible decreased response to pressor amines but not sufficient to preclude their use. Skeletal muscle relaxants, nondepolarizing (e.g., tubocurarine) - possible increased responsiveness to the muscle relaxant.
Lithium - generally should not be given with diluretics. Diuretic agents reduce the renal clearance of lithium and add a high risk of lithium toxicity. Refer to the package insert for lithium preparations before use of such preparations with hydrochlorothiazide Non - steroidal Anti - inflammatory Drugs - In some patients, the administration of a non-steroidal anti-inflammatory agent can reduce the diuretic, natriuretic and antihypertensive effects of loop, potassium-sparing and thiazide diuretics.
Therefore when hydrochlorothiazide and non-steroidal anti-inflammatory agents are used concomitantly the patient should be observed closely to determine if the desired effect of the diuretic is obtained.
🤰 Pregnancy ▾
Pregnancy Teratogenic Effects Studies in which hydrochlorothiazide was orally administered to pregnant mice and rats during their respective periods of major organogenesis at doses up to 3,000 and 1,000 mg hydrochlorothiazide/kg, respectively provided no evidence of harm to the fetus. There are, however, no adequate and well-controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed.
Nonteratogenic Effects Thiazides cross the placental barrier and appear in cord blood. There is a risk of fetal or neonatal jaundice, thrombocytopenia, and possibly other adverse reactions that have occurred in adults.
🧒 Pediatric Use ▾
Pediatric Use There are no well-controlled clinical trials in pediatric patients. Information on dosing in this age group is supported by evidence from empiric use in pediatric patients and published literature regarding the treatment of hypertension in such patients ( See DOSAGE AND ADMINISTRATION, Infants and Children ).
🆘 Overdosage ▾
OVERDOSAGE The most common signs and symptoms observed are those caused by electrolyte depletion (hypokalemia, hypochloremia, hyponatremia) and dehydration resulting from excessive diuresis. If digitalis has also been administered, hypokalemia may accentuate cardiac arrhythmias. In the event of overdosage, symptomatic and supportive measures should be employed.
Emesis should be induced or gastric lavage performed. Correct dehydration, electrolyte imbalance, hepatic comma and hypotension by established procedures. If required, give oxygen or artificial respiration for respiratory impairment.
The degree to which hydrochlorothiazide is removed by hemodialysis has not been established. The oral LD 50 of hydrochlorothiazide is greater than 10 g/kg in the mouse and rat.
🧬 Clinical Pharmacology ▾
CLINICAL PHARMACOLOGY The mechanism of the antihypertensive effect of thiazides is unknown. Hydrochlorothiazide does not usually affect normal blood pressure. Hydrochlorothiazide affects the distal renal tubular mechanism of electrolyte reabsorption.
At maximal therapeutic dosage all thiazides are approximately equal in their diuretic efficacy. Hydrochlorothiazide increases excretion of sodium and chloride in approximately equivalent amounts. Natriuresis may be accompanied by some loss of potassium and bicarbonate.
After oral use diuresis begins within 2 hours, peaks in about 4 hours and lasts about 6 to 12 hours. Pharmacokinetics and Metabolism Hydrochlorothiazide is not metabolized but is eliminated rapidly by the kidney. When plasma levels have been followed for at least 24 hours, the plasma half-life has been observed to vary between 5.6 and 14.8 hours.
At least 61 percent of the oral dose is eliminated unchanged within 24 hours. Hydrochlorothiazide crosses the placental but not the blood-brain barrier and is excreted in breast milk.
📦 How Supplied / Storage and Handling ▾
HOW SUPPLIED Hydrochlorothiazide Tablets USP, 12.5 mg are peach colored, round, debossed "A" one side and "1" on the other side. Hydrochlorothiazide Tablets USP, 12.5 mg are supplied as follows: Bottles of 100 NDC 23155-764-01 Bottles of 1000 NDC 23155-764-10 Hydrochlorothiazide Tablets USP, 25 mg are peach colored, round, debossed on one side with "H" above and "2" below the bisect and plain on the other side. Hydrochlorothiazide Tablets USP, 25 mg are supplied as follows: Bottles of 100 NDC 23155-008-01 Bottles of 500 NDC 23155-008-05 Bottles of 1000 NDC 23155-008-10 Bottles of 5000 NDC 23155-008-18 Hydrochlorothiazide Tablets USP, 50 mg are peach colored, round, debossed on one side with "H" above and "3" below the bisect and plain on the other side.
Hydrochlorothiazide Tablets USP, 50 mg are supplied as follows: Bottles of 100 NDC 23155-009-01 Bottles of 500 NDC 23155-009-05 Bottles of 1000 NDC 23155-009-10 Bottles of 5000 NDC 23155-009-18 Dispense in a tight, light-resistant container. Store at 20° to 25°C (68° to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. Rx only Distributed by: Avet Pharmaceuticals Inc.
East Brunswick, NJ 08816 1.866.901.DRUG (3784) 51U000000416US01 Revised: 07/2022 Image
📋 Description ▾
DESCRIPTION Hydrochlorothiazide is a diuretic and antihypertensive. It is the 3,4-dihydro derivative of chlorothiazide. Its chemical name is 6-chloro-3,4-dihydro-2 H -1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide.
Its molecular formula is C 7 H 8 CIN 3 O 4 S 2 and its structural formula is: It is a white, or practically white, crystalline powder with a molecular weight of 297.74 which is slightly soluble in water, freely soluble in sodium hydroxide solution, in n-butylamine and in dimethylformamide; sparingly soluble in methanol; insoluble in ether, in chloroform and in dilute mineral acids. Each tablet for oral administration contains 12.5 mg, 25 mg or 50 mg of hydrochlorothiazide respectively. In addition, each tablet contains following inactive ingredients: anhydrous lactose, D&C Yellow No.10 aluminum lake, FD&C Red No.
40 aluminum lake, magnesium stearate, pregelatinized starch and sodium starch glycolate. Image
💬 Information for Patients ▾
Information for Patients Non-melanoma Skin Cancer: Instruct patients taking hydrochlorothiazide to protect skin from the sun and undergo regular skin cancer screening.