Allergy to class/drug
Concomitant use of potent CYP 3A inhibitors (e.g. itraconazole, ketoconazole, nefazodone, protease-inhibitors)
Pregnancy
Triazolam
Midazolam
Oxazepam
Diazepam
Temazepam
Lorazepam
Clonazepam
Flurazepam