should i bother with prescription costs? Is there a specific threshold

[Mike9241 · Accepted solution]

For Federal purposes, RX costs are included with other medical costs on Schedule A. Total medical costs are then reduced by 7.5 % of your adjusted gross income 

so

1) if you're not itemizing, entering them or your total medical costs are less than that 7.5%, there is no benefit to entering them unless you have state income taxes that have different rules for medical expenses.

[CesarJ]

It depends. Prescription costs can only help your tax return if your total medical expenses are more than 7.5% of your adjusted gross income (AGI) and you itemize deductions. 

Prescription drugs are allowed as a medical expense, but you only get a tax benefit if all your medical costs together are high enough to pass that 7.5% threshold. If your medical expenses are less than that, you won’t get a deduction for them.

If you want to find out more about other deductible medical expenses, click this link.