Prescription Drug Information: PANTOPRAZOLE SODIUM

PANTOPRAZOLE SODIUM- pantoprazole sodium tablet, delayed release
Rebel Distributors Corp

1 INDICATIONS AND USAGE

Pantoprazole sodium delayed-release tablets are indicated for:

1.1 Short-Term Treatment of Erosive Esophagitis Associated With Gastroesophageal Reflux Disease (GERD)

Pantoprazole sodium delayed-release tablets are indicated in adults for the short-term treatment (up to 8 weeks) in the healing and symptomatic relief of erosive esophagitis. For those adult patients who have not healed after 8 weeks of treatment, an additional 8-week course of pantoprazole sodium delayed-release tablets may be considered. Safety of treatment beyond 8 weeks in pediatric patients has not been established.

Pediatric indication and usage information in pediatric patients ages five years and older with erosive esophagitis associated with GERD is approved for Wyeth Pharmaceuticals Inc.’s pantoprazole sodium delayed-release tablets. However, due to Wyeth Pharmaceuticals Inc.’s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

1.2 Maintenance of Healing of Erosive Esophagitis

Pantoprazole sodium delayed-release tablets are indicated for maintenance of healing of erosive esophagitis and reduction in relapse rates of daytime and nighttime heartburn symptoms in adult patients with GERD. Controlled studies did not extend beyond 12 months.

1.3 Pathological Hypersecretory Conditions Including Zollinger-Ellison Syndrome

Pantoprazole sodium delayed-release tablets are indicated for the long-term treatment of pathological hypersecretory conditions, including Zollinger-Ellison syndrome.

2 DOSAGE AND ADMINISTRATION

2.1 Recommended Dosing Schedule

Pantoprazole sodium is supplied as delayed-release tablets. The recommended dosages are outlined in Table 1.

Table 1: Recommended Dosing Schedule for Pantoprazole Sodium Delayed-Release Tablets
Indication Dose Frequency
*
For adult patients who have not healed after 8 weeks of treatment, an additional 8-week course of pantoprazole sodium delayed-release tablets may be considered.
Dosage regimens should be adjusted to individual patient needs and should continue for as long as clinically indicated. Doses up to 240 mg daily have been administered.
Short-Term Treatment of Erosive Esophagitis Associated With GERD
Adults 40 mg Once daily for up to 8 weeks *
Maintenance of Healing of Erosive Esophagitis
Adults 40 mg Once daily
Pathological Hypersecretory Conditions Including Zollinger-Ellison Syndrome
Adults 40 mg Twice daily

Pediatric dosing information in pediatric patients ages five years and older with erosive esophagitis associated with GERD is approved for Wyeth Pharmaceuticals Inc.’s pantoprazole sodium delayed-release tablets. However, due to Wyeth Pharmaceuticals Inc.’s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

2.2 Administration Instructions

Directions for method of administration for each dosage form are presented in Table 2.

Table 2: Administration Instructions
Formulation Route Instructions *
*
Patients should be cautioned that pantoprazole sodium delayed-release tablets should not be split, chewed, or crushed.
Delayed-Release Tablets Oral Swallowed whole, with or without food

Pantoprazole sodium delayed-release tablets should be swallowed whole, with or without food in the stomach. If patients are unable to swallow a 40 mg tablet, two 20 mg tablets may be taken. Concomitant administration of antacids does not affect the absorption of pantoprazole sodium delayed-release tablets.

3 DOSAGE FORMS AND STRENGTHS

  • 40 mg, yellow round biconvex tablets imprinted with ‘124’ (black ink) on one side
  • 20 mg, yellow round biconvex tablets imprinted with ‘144’ (black ink) on one side

4 CONTRAINDICATIONS

  • Pantoprazole sodium delayed-release tablets are contraindicated in patients with known hypersensitivity to any component of the formulation [see Description (11) ] or any substituted benzimidazole.

5 WARNINGS AND PRECAUTIONS

5.1 Concurrent Gastric Malignancy

Symptomatic response to therapy with pantoprazole does not preclude the presence of gastric malignancy.

5.2 Atrophic Gastritis

Atrophic gastritis has been noted occasionally in gastric corpus biopsies from patients treated long-term with pantoprazole, particularly in patients who were H. pylori positive.

5.3 Cyanocobalamin (Vitamin B-12) Deficiency

Generally, daily treatment with any acid-suppressing medications over a long period of time (e.g., longer than 3 years) may lead to malabsorption of cyanocobalamin (Vitamin B-12) caused by hypo- or achlorhydria. Rare reports of cyanocobalamin deficiency occurring with acid-suppressing therapy have been reported in the literature. This diagnosis should be considered if clinical symptoms consistent with cyanocobalamin deficiency are observed.

5.4 Bone Fracture

Several published observational studies suggest that proton pump inhibitor (PPI) therapy may be associated with an increased risk for osteoporosis-related fractures of the hip, wrist, or spine. The risk of fracture was increased in patients who received high-dose, defined as multiple daily doses, and long-term PPI therapy (a year or longer). Patients should use the lowest dose and shortest duration of PPI therapy appropriate to the condition being treated. Patients at risk for osteoporosis-related fractures should be managed according to established treatment guidelines [see Dosage and Administration (2) and Adverse Reactions (6.2)].

5.5 Tumorigenicity

Due to the chronic nature of GERD, there may be a potential for prolonged administration of pantoprazole. In long-term rodent studies, pantoprazole was carcinogenic and caused rare types of gastrointestinal tumors. The relevance of these findings to tumor development in humans is unknown [see Nonclinical Toxicology (13.1) ].

5.6 Interference with Urine Screen for THC

See Drug Interactions (7.4).

6 ADVERSE REACTIONS

6.1 Clinical Trial Experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice.

Adults

Safety in nine randomized comparative U.S. clinical trials in patients with GERD included 1,473 patients on oral pantoprazole (20 mg or 40 mg), 299 patients on an H2 -receptor antagonist, 46 patients on another proton pump inhibitor, and 82 patients on placebo. The most frequently occurring adverse reactions are listed in Table 3.

Table 3: Adverse Reactions Reported in Clinical Trials of Adult Patients with GERD at a Frequency of > 2%
Pantoprazole(n=1473)% Comparators(n=345)% Placebo(n=82)%
Headache 12.2 12.8 8.5
Diarrhea 8.8 9.6 4.9
Nausea 7 5.2 9.8
Abdominal pain 6.2 4.1 6.1
Vomiting 4.3 3.5 2.4
Flatulence 3.9 2.9 3.7
Dizziness 3 2.9 1.2
Arthralgia 2.8 1.4 1.2

Additional adverse reactions that were reported for pantoprazole in clinical trials with a frequency of ≤ 2% are listed below by body system:

Body as a Whole: allergic reaction, pyrexia, photosensitivity reaction, facial edema

Gastrointestinal: constipation, dry mouth, hepatitis

Hematologic: leukopenia, thrombocytopenia

Metabolic/Nutritional: elevated CK (creatine kinase), generalized edema, elevated triglycerides, liver enzymes elevated

Musculoskeletal: myalgia

Nervous: depression, vertigo

Skin and Appendages: urticaria, rash, pruritus

Special Senses: blurred vision

Pediatric Patients

Adverse reaction information in pediatric patients with erosive esophagitis associated with GERD is approved for Wyeth Pharmaceuticals Inc.’s pantoprazole sodium delayed-release tablets. However, due to Wyeth Pharmaceuticals Inc.’s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

Zollinger-Ellison Syndrome

In clinical studies of Zollinger-Ellison Syndrome, adverse reactions reported in 35 patients taking pantoprazole 80 mg/day to 240 mg/day for up to 2 years were similar to those reported in adult patients with GERD.

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