by prescription
idiom
US
: by having a written message from a doctor that officially tells one to use a medicine, therapy, etc.
The drug is only available by prescription.
Examples of by prescription in a Sentence
Recent Examples on the Web
Unlike folic acid, which can be bought over the counter or prescribed at higher doses (typically 1 milligram), folinic acid—another type of folate—is only available by prescription.
—
Trang Tran, Verywell Health, 17 Oct. 2025
An retinoid once only available by prescription, Differin’s Adapalene Gel 0.1% remains a dermatologist- and Allure editor-favorite for clearing up breakouts—and seven Best of Beauty wins proves it.
—Lily Wohlner, Allure, 2 Oct. 2025
Tylenol was first introduced in 1955 by McNeil Laboratories as Tylenol Elixir for children, by prescription only.
—Diana Leyva, Nashville Tennessean, 25 Sep. 2025
The test is only available by prescription, and it’s recommended annually by Grail for people at higher risk of cancer, such as those ages 50 and older.
—Lisa Schencker, Chicago Tribune, 26 July 2025
See All Example Sentences for by prescription
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Trang Tran, Verywell Health, 17 Oct. 2025
An retinoid once only available by prescription, Differin’s Adapalene Gel 0.1% remains a dermatologist- and Allure editor-favorite for clearing up breakouts—and seven Best of Beauty wins proves it.
—Lily Wohlner, Allure, 2 Oct. 2025
Tylenol was first introduced in 1955 by McNeil Laboratories as Tylenol Elixir for children, by prescription only.
—Diana Leyva, Nashville Tennessean, 25 Sep. 2025
The test is only available by prescription, and it’s recommended annually by Grail for people at higher risk of cancer, such as those ages 50 and older.
—Lisa Schencker, Chicago Tribune, 26 July 2025
See All Example Sentences for by prescription
Cite this Entry
“By prescription.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/by%20prescription. Accessed 24 Oct. 2025.
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