Drug Interactions With TriNessa

When certain medicines are taken with TriNessa, drug interactions could occur that can increase your risk of pregnancy or of side effects. Some of these medicines include antibiotics, barbiturates, seizure medications, and protease inhibitors. To help prevent drug interactions with TriNessa, tell your healthcare provider about all other medicines you are taking before starting this form of birth control.

Drug Interactions With TriNessa: An Overview

TriNessa® (norgestimate/ethinyl estradiol) is a generic version of Ortho Tri-Cyclen®. It can potentially interact with numerous other medicines. Many of these interactions can be severe enough to cause accidental pregnancy, and a backup method of birth control may be recommended. If you are ever unsure what to do about a TriNessa drug interaction, be sure to use backup birth control until you can speak with your healthcare provider. Some of the medicines that may lead to drug interactions include:
 
 
    • Amobarbital (Amytal®)
    • Butalbital (Fioricet®, Fiorinal®)
    • Pentobarbital (Nembutal®)
    • Phenobarbital (Luminal®)
    • Secobarbital (Seconal®)
 
  • Cyclosporine (Gengraf®, Neoral®, Sandimmune®)
  • Many seizure medications, such as:
 
 
 
 

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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;
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