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Drug Safety-related Labeling Changes (SrLC)

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KARBINAL ER (NDA-022556)

(CARBINOXAMINE MALEATE)

Safety-related Labeling Changes Approved by FDA Center for Drug Evaluation and Research (CDER)

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03/25/2021 (SUPPL-6)

Approved Drug Label (PDF)

5 Warnings and Precautions

5.1 Somnolence and Impaired Mental Alertness

(Section title updated)

5.4 Allergic Reactions due to Sulfites, including Anaphylaxis

(Section title updated)

6 Adverse Reactions

(Newly added information)

The following clinically significant adverse reactions are described elsewhere in the labeling:

7 Drug Interactions

(Additions and/or revisions underlined)

    • Do not use Karbinal ER in patients who are taking monoamine oxidase inhibitors (MAOIs), which prolong and intensify the anticholinergic (drying) effects of antihistamines.

8 Use in Specific Populations

8.1 Pregnancy

(PLLR conversion. Please refer to label for complete information.)

8.2 Lactation

(PLLR conversion. Please refer to label for complete information.)

8.4 Pediatric Use

(Additions and/or revisions underlined)

Karbinal ER is contraindicated in pediatric patients younger than 2 years of age because deaths have been reported in this patient population who were taking carbinoxamine-containing drug products

[see Contraindications (4) and Warnings and Precautions (5.1)].

The safety and effectiveness of Karbinal ER in pediatric patients aged 2 years and older have been established and is based on demonstration of bioequivalence to the immediate-release reference product [see Clinical Pharmacology (12.3)]. Carbinoxamine may diminish mental alertness or produce sedation in  children. Paradoxical reactions with excitation are more likely in younger children.

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

(Newly added information)

Lactation

Advise women that breastfeeding is not recommended during treatment with Karbinal ER [see Warnings and Precautions (5.1) and Use in Specific Populations (8.2)].