Showing results for doxycycline. Search instead for deoxycytidine.

doxycycline

American

[dok-see-sahy-kleen, -klin] / ˌdɒk siˈsaɪ klin, -klɪn /

noun

Pharmacology.

a synthetic analog of a broad-spectrum antibiotic tetracycline drug, C 22 H 24 N 2 O 8 , used against a wide range of susceptible Gram-positive and Gram-negative organisms.

doxycycline British

/ ˌdɒksɪˈsaɪklɪn /

noun

a tetracycline antibiotic used to treat conditions caused by a wide range of bacteria, including anthrax

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of doxycycline

Contraction of deoxytetracycline

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

One of the first things they did as husband and wife was to take doxycycline pills from their local health centre.

From BBC • Jul. 23, 2025

Among them was the prediction that doxycycline, an antibiotic, could interact with warfarin, a commonly prescribed blood-thinner.

From Science Daily • Feb. 20, 2024

To test those predictions, the researchers looked at data from about 50 patients who had been taking one of those three drugs when they were prescribed doxycycline.

From Science Daily • Feb. 20, 2024

The treatment is considered very effective at preventing chlamydia and syphilis, but may be less effective against gonorrhea; protection against gonorrhea may vary because some strains are resistant to doxycycline, Stewart said.

From Seattle Times • Oct. 14, 2023

The most common side effect of doxycycline is nausea, Stewart said.

From Seattle Times • Oct. 14, 2023

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023