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Drug Safety-related Labeling Changes (SrLC)

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MICRONOR (NDA-016954)

(NORETHINDRONE)

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

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11/15/2021 (SUPPL-100)

Approved Drug Label (PDF)

7 Drug Interactions

Drug Interactions

Extensive changes; please refer to label 

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

Patient Information

Additions and/or revisions underlined: 

Bosentan USING POPs WITH OTHER MEDICINES

Before taking a POP, inform your healthcare professional of any other medication, including over-the-counter medicine, that you may be taking.

These medicines can make POPs less effective: Medicines for seizures such as:

  • Phenytoin
  • Carbamazepine
  • Phenobarbital
  • Felbamate
  • Oxcarbazepine
  • Rufinamide

Medicine for nausea and vomiting caused by certain anti-cancer (chemotherapy) medicines:

  • (Fos)aprepitant

Medicines for tuberculosis (TB):

  • Rifampin and rifabutin

Medicine for fungal infections such as:

  • Griseofulvin

Medicines used for the treatment of HIV infections or AIDS and infections due to Hepatitis C such as:

  • Efavirenz, nevirapine, nelfinavir, and some ritonavir-containing drugs

Herbal products such as:

  • St. John’s wort

These medicines and substances can increase your exposure to POPs: Grapefruit juice

Medicines for fungal infections such as:

  • Itraconazole

  • Voriconazole

  • Fluconazole

  • Ketoconazole

11/15/2021 (SUPPL-108)

Approved Drug Label (PDF)

7 Drug Interactions

Drug Interactions

Extensive changes; please refer to label 

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

Patient Information

Additions and/or revisions underlined: 

Bosentan USING POPs WITH OTHER MEDICINES

Before taking a POP, inform your healthcare professional of any other medication, including over-the-counter medicine, that you may be taking.

These medicines can make POPs less effective: Medicines for seizures such as:

  • Phenytoin
  • Carbamazepine
  • Phenobarbital
  • Felbamate
  • Oxcarbazepine
  • Rufinamide

Medicine for nausea and vomiting caused by certain anti-cancer (chemotherapy) medicines:

  • (Fos)aprepitant

Medicines for tuberculosis (TB):

  • Rifampin and rifabutin

Medicine for fungal infections such as:

  • Griseofulvin

Medicines used for the treatment of HIV infections or AIDS and infections due to Hepatitis C such as:

  • Efavirenz, nevirapine, nelfinavir, and some ritonavir-containing drugs

Herbal products such as:

  • St. John’s wort

These medicines and substances can increase your exposure to POPs:

  • Grapefruit juice

Medicines for fungal infections such as:

  • Itraconazole

  • Voriconazole

  • Fluconazole

  • Ketoconazole