STD Channel
Topics & Medications
Quicklinks
Related Channels
Drug Interactions With Quasense
Several medications can cause drug interactions with Quasense, so tell your healthcare provider about all other medicines you are taking before starting this oral contraceptive. Medications that may interact with Quasense include antibiotics, barbiturates, and certain seizure medications, to name a few. Some of these drug interactions with Quasense can make Quasense less effective, increasing your risk of pregnancy.
Drug Interactions With Quasense: An Overview
Quasense™ (levonorgestrel/ethinyl estradiol) is a prescription birth control pill (oral contraceptive) and is a generic version of Seasonale®. Quasense can potentially interact with numerous other medicines. Some of the medicines that may lead to drug interactions with Quasense include:- Aminoglutethimide (Cytadren®)
- Antibiotics
- Aprepitant (Emend®)
- Atorvastatin (Lipitor®) or combination medications that contain atorvastatin (Caduet®, Liptruzet™)
- Barbiturate medications, such as:
- Amobarbital (Amytal®)
- Butalbital (Fioricet®, Fiorinal®)
- Pentobarbital (Nembutal®)
- Phenobarbital (Luminal®)
- Secobarbital (Seconal®)
- Cyclosporine (Gengraf®, Neoral®, Sandimmune®)
- Modafinil (Provigil®)
- Protease inhibitors, such as:
- Amprenavir (Agenerase®)
- Atazanavir (Reyataz®)
- Fosamprenavir (Lexiva®)
- Indinavir (Crixivan®)
- Nelfinavir (Viracept®)
- Ritonavir (Norvir®)
- Selegiline (Eldepryl®, Emsam®, Zelapar®)
- St. John's wort
- Theophylline (Uniphyl®, Theocron®, TheoCap®, Theo-24®, Elixophyllin®)
- Various seizure medications, such as:
- Carbamazepine (Carbatrol®, Epitol®, Equetro™, Tegretol®)
- Felbamate (Felbatol®)
- Lamotrigine (Lamictal®)
- Oxcarbazepine (Trileptal®)
- Phenytoin (Dilantin®, Phenytek®)
- Topiramate (Topamax®).
Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD