Can I Take Black Seed, Cold FX And Olive Leaf

Can I take Black seed, Cold FX and Olive Leaf Extract, especially Cold FX, if I'm taking 30 mg. of Duloxetine and 1 mg. of Clonazepam at 1:30 AM at night? My sleep cycle is such that I don't fall asleep until 2 or 2:30 but am working with a sleep doctor to get my clock back. Thanks.