- Reported use of any prescription drug within 14 days prior to dosing, any non-prescription drug or vitamin within 7 days prior to dosing, any known enzyme-inducer, enzyme-inhibitor, or other investigational drug within 30 days prior to dosing, or reported chronic exposure to enzyme-inducers such as paint solvents or pesticides within 30 days of dosing, unless approved by the Sponsor; hormonal contraceptive will be permitted if the subject has been using it for at least 12 weeks prior to dosing;