Depends. It is a medical expense if it is health insurance, so it can be deducted. If you are paying it yourself out of your checkbook, deduct it. If your employer is taking it out of your pay you need to find out if it taken out pre-tax or post-tax. If it is taken out post tax yes you can deduct it. But if it is taken our pre-tax you can not, because it wasn't taxed originally.
If your employer isn't taking it out pre-tax you should tell them they suck. They should do that for everyone, it is very helpful for folks that just take standard deductions.