Readi-Cat 2

READI-CAT 2- barium sulfate suspension
READI-CAT 2 BANANA SMOOTHIE- barium sulfate suspension
READI-CAT 2 BERRY SMOOTHIE- barium sulfate suspension
READI-CAT 2 MOCHACCINO SMOOTHIE- barium sulfate suspension
READI-CAT 2 CREAMY VANILLA SMOOTHIE- barium sulfate suspension
E-Z-EM Canada Inc

1  INDICATIONS AND USAGE

READI-CAT 2 and READI-CAT 2 SMOOTHIES are indicated for use in computed tomography (CT) of the abdomen to delineate the gastrointestinal (GI) tract in adult and pediatric patients.

2  DOSAGE AND ADMINISTRATION

2.1 Recommended Dosage

Base dosing on individual needs and procedure to be performed.

  • Adult and pediatric patients 12 years and older: 450 mL to 900 mL (9 g to 18 g of barium sulfate)
  • Patients younger than 12 years of age: adjust dose based on relative GI volume

2.2 Administration Instructions

  • For oral use only
  • Shake bottle vigorously for 30 seconds prior to oral administration
  • Administer undiluted prior to scan
  • Discard any unused suspension
  • Advise patients to hydrate following the barium sulfate procedure

3  DOSAGE FORMS AND STRENGTHS

Oral suspension: 9 grams of barium sulfate supplied as a suspension (2% w/v) in a single-dose HDPE plastic bottle.

4  CONTRAINDICATIONS

READI-CAT 2 products are contraindicated in patients:

  • with known or suspected perforation of the GI tract
  • with known obstruction of the GI tract
  • at high risk of GI perforation such as those with a recent prior GI perforation, acute GI hemorrhage or ischemia, toxic megacolon, severe ileus, post GI surgery or biopsy, acute GI injury or burn, or recent radiotherapy to pelvis
  • at high risk of aspiration such as those with prior aspiration, tracheo-esophageal fistula, or obtundation
  • known severe hypersensitivity to barium sulfate or any of the excipients of READI-CAT 2 or READI-CAT 2 SMOOTHIES

5  WARNINGS AND PRECAUTIONS

5.1 Hypersensitivity Reactions

Barium sulfate preparations contain a number of excipients, including natural and artificial flavors and may induce serious hypersensitivity reactions. The manifestations include hypotension, bronchospasm and other respiratory impairments, dermal reactions including rashes, urticaria, and itching. A history of bronchial asthma, atopy, or a previous reaction to a contrast agent may increase the risk for hypersensitivity reactions. Emergency equipment and trained personnel should be immediately available for treatment of a hypersensitivity reaction.

5.2 Intra-abdominal Barium Leakage

The use of READI-CAT 2 products is contraindicated in patients at high risk of perforation of the GI tract [see Contraindications (4)]. Administration of READI-CAT 2 products may result in leakage of barium from the GI tract in the presence of conditions such as carcinomas, GI fistula, inflammatory bowel disease, gastric or duodenal ulcer, appendicitis, or diverticulitis, and in patients with a severe stenosis at any level of the GI tract, especially if it is distal to the stomach. The barium leakage has been associated with peritonitis and granuloma formation.

5.3 Delayed Gastrointestinal Transit and Obstruction

Orally administered barium sulfate may accumulate proximal to a constricting lesion of the colon, causing obstruction or impaction with development of baroliths (inspissated barium associated with feces) and may lead to abdominal pain, appendicitis, bowel obstruction, or rarely perforation. Patients with the following conditions are at higher risk for developing obstruction or baroliths: severe stenosis at any level of the GI tract, impaired GI motility, electrolyte imbalance, dehydration, on a low residue diet, taking medications that delay GI motility, and constipation, pediatric patients with cystic fibrosis or Hirschsprung disease, and the elderly [see Use in Specific Populations (8.4, 8.5)]. To reduce the risk of delayed GI transit and obstruction, patients should maintain adequate hydration following a barium sulfate procedure.

5.4 Aspiration Pneumonitis

The use of READI-CAT 2 products is contraindicated in patients at high risk of aspiration [see Contraindications (4)]. Oral administration of barium is associated with aspiration pneumonitis, especially in patients with a history of food aspiration or with compromised swallowing mechanism. Vomiting following oral administration of barium sulfate may lead to aspiration pneumonitis. In patients at risk for aspiration, begin the procedure with a small ingested volume of READI-CAT 2 products. Discontinue administration of READI-CAT 2 products immediately if aspiration is suspected.

5.5 Systemic Embolization

Barium sulfate products may occasionally intravasate into the venous drainage of the large bowel and enter the circulation as a “barium embolus” leading to potentially fatal complications which include systemic and pulmonary embolism, disseminated intravascular coagulation, septicemia and prolonged severe hypotension. Although this complication is exceedingly uncommon after oral administration of barium sulfate suspension, monitor patients for potential intravasation when administering barium sulfate.

5.6 Risk with Hereditary Fructose Intolerance

READI-CAT 2 contains sorbitol which may cause severe reactions if ingested by patients with hereditary fructose intolerance, such as: vomiting, hypoglycemia, jaundice, hemorrhage, hepatomegaly, hyperuricemia, and kidney failure. Before administration of READI-CAT 2 assess patients for a history of hereditary fructose intolerance and avoid use in these patients.

6  ADVERSE REACTIONS

The following adverse reactions have been identified from spontaneous reporting or clinical studies of barium sulfate administered orally. Because the reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or to establish a causal relationship to drug exposure:

  • Nausea, vomiting, diarrhea and abdominal cramping
  • Serious adverse reactions and fatalities include aspiration pneumonitis, barium sulfate impaction, intestinal perforation with consequent peritonitis and granuloma formation, vasovagal and syncopal episodes

8  USES IN SPECIFIC POPULATIONS

8.1 Pregnancy

Risk Summary
READI-CAT 2 products are not absorbed systemically following oral administration, and maternal use is not expected to result in fetal exposure to the drug.

8.2 Lactation

Risk Summary
READI-CAT 2 products are not absorbed systemically by the mother following oral administration, and breastfeeding is not expected to result in exposure of the infant to READI-CAT 2.

8.4 Pediatric Use

The efficacy of READI-CAT 2 in pediatric patients of all groups is based on successful opacification of the GI tract during radiographic procedures [see Clinical Pharmacology (12.1)].

READI-CAT 2 is contraindicated in pediatric patients with tracheo-esophageal fistula [see Contraindications (4)].

Pediatric patients with a history of asthma or food allergies may be at increased risk for development of hypersensitivity reactions [see Warnings and Precautions (5.1)]. Pediatric patients with cystic fibrosis or Hirschsprung disease should be monitored for bowel obstruction after use [see Warnings and Precautions (5.3)].

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