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Plan B Oral

Generic Name: LEVONORGESTREL - ORAL
Pronounced: (lee-voh-nor-JEST-rell)

Plan B Oral Interactions

Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with them first.

This drug should not be used with the following medications because very serious interactions may occur:

  • sodium tetradecyl sulfate


If you are currently using the medication listed above, tell your doctor or pharmacist before starting this medication.

Before taking this medication, tell your doctor of all prescription and nonprescription medications you may use, especially of:

  • amprenavir
  • drugs affecting liver enzymes that remove levonorgestrel from your body (such as bosentan, modafinil, nevirapine, HIV protease inhibitors including ritonavir, griseofulvin, rifamycins including rifabutin, St. John's wort, certain anti-seizure medicines including carbamazepine, phenytoin, phenobarbital)
  • troleandomycin


This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.

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