I need a prescription.
ri-CHET-ta — 'ch' before 'e' makes a hard 'k' sound in Italian. Double 't' is short and clipped.
Tell the doctor at the end of a visit if you expect a prescription. Also use it at a pharmacy to explain why you cannot get a medication without visiting a doctor first.
'Ho bisogno di' (I need) is a fundamental Italian structure. 'Ricetta' means prescription (but also recipe in cooking — same word, different contexts). In Italian public healthcare, prescriptions are usually on a standard red national form ('ricetta rossa') or an electronic prescription ('ricetta elettronica').
Può scrivermi una ricetta?
Can you write me a prescription?
Direct request to the doctor — polite with 'può'
Ho bisogno di rinnovare la ricetta.
I need to renew my prescription.
Use for ongoing medications like blood pressure pills
Il medico mi ha fatto la ricetta elettronica.
The doctor gave me an electronic prescription.
Electronic prescriptions ('dematerializzate') are now standard in Italy
Since 2020, Italy has largely moved to 'ricette elettroniche dematerializzate' — the doctor sends the prescription digitally, and you retrieve it at any pharmacy using your 'codice fiscale' (tax ID). Paper prescriptions still exist but are declining. Some medications require a 'ricetta bianca' (white prescription), others need 'ricetta rossa' (public health form).