How to Pronounce “levothyroxine”

American (US)

/ˌliːvoʊθaɪˈrɑːksiːn/

British (UK)

/ˌliːvəʊθaɪˈrɒksiːn/

noun — The levorotatory isomer of thyroxine (trademark Levothyroid, Levoxyl, Synthroid) that is administered in the form of its sodium salt C15H10I4NNaO4 in the treatment of hypothyroidism.

The final e is silent. The transcription /ˌliːvoʊθaɪˈrɑːksiːn/ ends on a consonant sound, so the written e at the end of “levothyroxine” is not pronounced.

Where the stress falls. “levothyroxine” has 5 syllables, and the transcription /ˌliːvoʊθaɪˈrɑːksiːn/ puts the primary stress mark (ˈ) before the fourth one — so the fourth syllable is the longest and loudest. The others are said quickly and lightly.

What does "levothyroxine" mean?

levothyroxine (noun): The levorotatory isomer of thyroxine (trademark Levothyroid, Levoxyl, Synthroid) that is administered in the form of its sodium salt C15H10I4NNaO4 in the treatment of hypothyroidism.

How do you pronounce "levothyroxine" in American vs British English?

American English: /ˌliːvoʊθaɪˈrɑːksiːn/. British English: /ˌliːvəʊθaɪˈrɒksiːn/. Play both on this page to hear the difference.

What is the IPA transcription of "levothyroxine"?

/ˌliːvoʊθaɪˈrɑːksiːn/ in American English, /ˌliːvəʊθaɪˈrɒksiːn/ in British English.

Which syllable is stressed in "levothyroxine"?

“levothyroxine” has 5 syllables, and the transcription /ˌliːvoʊθaɪˈrɑːksiːn/ puts the primary stress mark (ˈ) before the fourth one — so the fourth syllable is the longest and loudest. The others are said quickly and lightly.