Yes. Your tuition expense for medical school is deductible even if paid for through a student loan.
However, if you have no income, the amount you receive as a deduction or credit for this tuition will not be offset against any income and you won't be eligible for a refund. If you have no income, it is likely that you do not need to file a tax return at all.
For more information on filing requirements, please see:
https://ttlc.intuit.com/replies/3302274
