You should talk with your healthcare provider prior to taking this medication if you have:
- Any heart condition or problem
- High blood pressure (hypertension)
- Liver disease, such as liver failure, cirrhosis, or hepatitis
- Kidney disease, including kidney failure (renal failure)
- Any allergies, including allergies to food, dyes, or preservatives.
Also, let your healthcare provider know if you are:
- Pregnant or thinking of becoming pregnant (see Nuvigil and Pregnancy)
- Breastfeeding (see Nuvigil and Breastfeeding).
Make sure to tell your healthcare provider about all other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
(Click Precautions and Warnings With Armodafinil to learn more, including information on who should not take the drug.)
At this time, it is not known exactly how armodafinil works to promote wakefulness. It does not work like other stimulants. It affects certain brain chemicals, but this does not seem to be the way the drug works, since blocking armodafinil's effect on such chemicals does not stop it from working.
Armodafinil is chemically similar to Provigil® (modafinil), another drug approved for the same uses. Provigil contains two different forms of the modafinil molecule, while armodafinil contains just one (the longer-acting form).