Rx
4 synonyms and 2 antonyms for Rx, grouped by meaning and by how common each one is.
Noun — A doctor's prescription, or the symbol printed on a prescription form and on pharmacy signage to mark it as one.
Synonyms
Everyday swaps
Common words most readers know — safe in any writing.
Less common
Still standard English, but they carry more weight.
Synonyms by Meaning
1. noun
A doctor's prescription, or the symbol printed on a prescription form and on pharmacy signage to mark it as one.
“Bring your Rx to the counter and we'll fill it.”
2. abbreviation medical shorthand
Used in medical shorthand and notes to mean treatment or therapy.
“Dx: migraine. Rx: sumatriptan as needed.”
3. adjective
Available only on prescription, as opposed to over the counter.
“It moved from Rx to OTC status in 2015.”
Opposites
How to use Rx
The word patterns that sound natural to a native speaker.
Chiefly American in everyday use — US pharmacies, insurance plans and drug marketing all use it. British patients normally say prescription. Written with a capital R and lower-case x.
Etymology
An abbreviation of Latin recipe, 'take', the traditional opening word of a prescription instructing the pharmacist to take the listed ingredients. The stroke across the R's leg is a scribal abbreviation mark.
Full origin of Rx →