You're entitled to free NHS prescriptions if you're:
under 16
16, 17 or 18 and in full-time education
60 or over
Students aged 19 and over aren't automatically entitled to free NHS prescriptions, but can apply for help through the NHS Low Income Scheme (see page 4).
Certain benefits
Not all benefits entitle you to free NHS prescriptions. Check which type of benefit you get before you claim free NHS prescriptions.
You're entitled to free NHS prescriptions if you are named on an award for:
Income Support
income-based Jobseeker's Allowance
income-related Employment and Support Allowance
Pension Credit (Guarantee Credit) paid on its own, or PensionCredit (Guarantee Credit with Savings Credit)
certain Tax Credits - see page 4, under 'NHS Tax Credit Exemption Certificate
Universal Credit - but only if earnings in your last assessment period were £435 or less, or £935 or less if you get an element for a child or have limited capability for work