Prescription Drug Name:
RANITIDINE TABLETS – 300 MG
displayName: DESCRIPTION SECTION
FDA Article Code: 34089-3
Ranitidine hydrochloride, USP is a histamine H2-receptor antagonist. Chemically it is N[2-[[[5-[(dimethylamino)methyl]-2-furanyl] methyl]thio]ethyl]-N´-methyl-2-nitro-1,1-ethenediamine, hydrochloride. The molecular formula is C13H22N4O3S•HCl, representing a molecular weight of 350.87.
Ranitidine HCl is a white to pale yellow, crystalline substance that is very soluble in water. It has a slightly bitter taste and sulfurlike odor. The structural formula is:
Each Ranitidine Tablet, USP 300 mg for oral administration contains 336 mg of ranitidine hydrochloride equivalent to 300 mg of ranitidine. In addition, each tablet contains the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, hypromellose, magnesium stearate, microcrystalline cellulose, castor oil, titanium dioxide and talc.
displayName: CLINICAL PHARMACOLOGY SECTION
FDA Article Code: 34090-1
Ranitidine is a competitive, reversible inhibitor of the action of histamine at the histamine H2-receptors, including receptors on the gastric cells. Ranitidine does not lower serum Ca++ in hypercalcemic states. Ranitidine is not an anticholinergic agent.
INDICATIONS AND USAGE
displayName: INDICATIONS & USAGE SECTION
FDA Article Code: 34067-9
Ranitidine Tablets, USP are indicated in:
displayName: CONTRAINDICATIONS SECTION
FDA Article Code: 34070-3
Ranitidine Tablets are contraindicated in patients known to have hypersensitivity to the drug or any of the ingredients (see PRECAUTIONS).
displayName: PRECAUTIONS SECTION
FDA Article Code: 42232-9
displayName: ADVERSE REACTIONS SECTION
FDA Article Code: 34084-4
The following have been reported as events in clinical trials or in the routine management of patients treated with ranitidine. The relationship to therapy with ranitidine has been unclear in many cases. Headache, sometimes severe, seems to be related to administration of ranitidine.
These events are usually reversible, but in rare circumstances death has occurred. Rare cases of hepatic failure have also been reported. In normal volunteers, SGPT values were increased to at least twice the pretreatment levels in 6 of 12 subjects receiving 100 mg intravenously 4 times daily for 7 days, and in 4 of 24 subjects receiving 50 mg intravenously 4 times daily for 5 days.
However, occasional cases of gynecomastia, impotence, and loss of libido have been reported in male patients receiving ranitidine, but the incidence did not differ from that in the general population.
displayName: OVERDOSAGE SECTION
FDA Article Code: 34088-5
There has been limited experience with overdosage. Reported acute ingestions of up to 18 g orally have been associated with transient adverse effects similar to those encountered in normal clinical experience (see ADVERSE REACTIONS). In addition, abnormalities of gait and hypotension have been reported.
When overdosage occurs, the usual measures to remove unabsorbed material from the gastrointestinal tract, clinical monitoring, and supportive therapy should be employed.
Studies in dogs receiving dosages of ranitidine in excess of 225 mg/kg per day have shown muscular tremors, vomiting, and rapid respiration. Single oral doses of 1,000 mg/kg in mice and rats were not lethal. Intravenous LD50 values in mice and rats were 77 and 83 mg/kg, respectively.
DOSAGE AND ADMINISTRATION
displayName: DOSAGE & ADMINISTRATION SECTION
FDA Article Code: 34068-7
Antacid should be given as needed for relief of pain (see CLINICAL PHARMACOLOGY: Pharmacokinetics).
Maintenance of Healing of Duodenal Ulcers: The current recommended adult oral dosage is 150 mg at bedtime.
Pathological Hypersecretory Conditions (such as Zollinger-Ellison syndrome): The current recommended adult oral dosage is 150 mg twice daily. In some patients it may be necessary to administer ranitidine 150 mg doses more frequently. Dosages should be adjusted to individual patient needs, and should continue as long as clinically indicated. Dosages up to 6 g / day have been employed in patients with severe disease.
Benign Gastric Ulcer: The current recommended adult oral dosage is 150 mg twice daily.
Maintenance of Healing of Gastric Ulcers: The current recommended adult oral dosage is 150 mg at bedtime.
GERD: The current recommended adult oral dosage is 150 mg twice daily.
Erosive Esophagitis: The current recommended adult oral dosage is 150 mg four times daily.
Maintenance of Healing of Erosive Esophagitis: The current recommended adult oral dosage is 150 mg twice daily.
Pediatric Use: The safety and effetiveness of ranitidine have been established in the agegroup of 1 month to 16 years. There is insufficient information about the pharmacokinetics of ranitidine in neonatal patients (less than 1 month of age) to make dosing recommendations.
The following three subsections provide dosing information for each of the pediatric indications.
Maintenance of Healing of Duodenal and Gastric Ulcers
Treatment of GERD and Erosive Esophagitis:
Although limited data exist for these conditions in pediatric patients, published literature supports a dosage of 5 to 10 mg/kg/day, usually given as two divided doses.
Dosage Adjustment for Patients With Impaired Renal Function: On the basis of experience with a group of subjects with severely impaired renal function treated with ranitidine, the recommended dosage in patients with a creatinine clearance <50 mL/min is 150 mg every 24 hours. Should the patient’s condition require, the frequency of dosing may be increased to every 12 hours or even further with caution. Hemodialysis reduces the level of circulating ranitidine. Ideally, the dosing schedule should be adjusted so that the timing of a scheduled dose coincides with the end of hemodialysis.
Elderly patients are more likely to have decreased renal function, therefore caution should be exercised in dose selection, and it may be useful to monitor renal function (see CLINICAL PHARMACOLOGY: Pharmacokinetics: Geriatrics and PRECAUTIONS: Geriatric Use).
displayName: HOW SUPPLIED SECTION
FDA Article Code: 34069-5
Ranitidine Tablets, USP 300 mg (Ranitidine HCl equivalent to 300 mg of ranitidine) are white, film-coated, unscored, capsule-shaped tablets debossed with W 907 on one side and plain on the other. They are available in:
Bottles of 30 – NDC 42549-560-30
Bottle contains desiccant.
Store between 20° and 25°C (68° and 77°F) in a dry place. Protect from light. Replace cap securely after each opening.
Wockhardt USA LLC.
20 Waterview Blvd.
Parsippany, NJ 07054
PACKAGE LABEL – RANITIDINE – 300 MG TABLETS
displayName: PACKAGE LABEL.PRINCIPAL DISPLAY PANEL
FDA Article Code: 51945-4