5 syllables: Pyr, i, meth, a, mine. Stress on meth.
pir-im-ETH-uh-meen
/pɪɹɪˈmɛθəmiːn/
Pyrimethamine is pronounced pir-im-ETH-uh-meen (/pɪɹɪˈmɛθəmiːn/). It has five syllables (Pyr-i-meth-a-mine), with the stress on "meth". Pyrimethamine is a long-acting antiparasitic medication used to treat protozoan infections, often in combination with other drugs. It inhibits dihydrofolate reductase, disrupting DNA synthesis in parasites. Its pharmacological use is specialized and typically prescribed under medical supervision, especially for conditions like malaria and toxoplasmosis.
nounPyrimethamine is a long-acting antiparasitic medication used to treat protozoan infections, often in combination with other drugs. It inhibits dihydrofolate reductase, disrupting DNA synthesis in parasites. Its pharmacological use is specialized and typically prescribed under medical supervision, especially for conditions like malaria and toxoplasmosis.
"The physician prescribed pyrimethamine as part of an anti-malarial regimen."
"Pyrimethamine is often used alongside sulfadoxine to enhance efficacy in certain infections."
"She completed the course of pyrimethamine while monitoring blood counts for potential side effects."
Pronounce as: /ˌpɪrɪˈmiːθəmiːn/ in US, /ˌpɪəˈrɪːˌmiːθəmiːn/ in UK; main stress on the third syllable ‘-mi-’. Break it into pi-ri-me-tha-min-e? Actually: py-ri-me-tha-min-e? Standard approach: PY-ri-ME-tha-min-e with primary stress on ME. For quick guidance: 'pih-RIM-ETH-uh-meen' with the main beat on 'ME' (the /ˈmiː/). Audio reference: refer to medical pronunciation resources and Forvo entries for pyrimethamine.
Common errors include stressing the wrong syllable, saying 'pyr-ih-METH-a-meen' with incorrect second stress, and omitting the second 'i' sound leading to 'py-REETH-uh-meen'. Another frequent slip is turning the /θ/ (th) into /t/ or /s/. Correction: keep secondary stress on the third syllable and pronounce /θ/ as the voiceless dental fricative 'th' in -th-; ensure the final -amine is /-əˌmiːn/ with a long 'ee' sound.
In US, the /ˌpɪrɪˈmiːθəmiːn/ with rhotic initial part; UK tends to a tighter /ˌpɪəˈrɪːˈmiːθəmiːn/ and slightly closer vowels; Australian tends toward /ˌpɪˈrɪːmɪˌθiːmiːn/ with less rhoticity and vowel height variations. Across accents the -th- remains voiceless dental (/θ/), but vowel qualities may shift: US /ɪ/ vs UK /ɪə/ or /ɪ/; US/UK differences are subtle in the unstressed syllables. Listen to medical pronunciation resources for precise examples in your target accent.
The difficulty stems from multiple factors: the sequence pyr- (unstressed first syllable) with a consonant cluster that includes /r/ and the dental fricative /θ/ followed by a long /iː/ in -me-, plus the final -amine pronounced /əˈmiːn/ with stress shift. The combination of unaccented first syllable, voiceless interdental /θ/, and long vowels across several syllables makes it easy to mis-stress or mispronounce the 'th' and 'ee' sounds. Practice the rhythm to anchor the primary stress on the ME syllable.
Note the sequence -me-tha- in the middle, where 'me' carries a long /iː/ and 'tha' begins with the dental /θ/. Many learners misplace the stress across the 'me' and 'tha' portions, or blend the sounds too quickly. Emphasize the middle 'miː' and clearly pronounce the /θ/ to avoid a mispronunciation like /ˌpɪrəˈmɛθəmiːn/. The stabilized pronunciation has the long ‘ee’ in the second half and a distinct /θ/ in the middle.
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US: rhotics influence the initial vowel quality; UK: slightly tighter vowel transitions, with the /ɜː/ or /ɪə/ nuances; AU: more relaxed vowels, but the /θ/ remains dental. IPA references: US /ˌpɪɹɪˈmiːθəˌmiːn/ (approx), UK /ˌpɪəˈmiːˈθəmiːn/, AU /ˌpɪˈɹɪˌmiːˌθiːmiːn/. Practical tips: keep lips rounded slightly for /ɪ/ and /iː/; ensure the tongue blade lightly touches the upper teeth for /θ/; use a slow onset and steady tempo to maintain vowel length.
The word pyrimethamine derives from a combination of chemical naming conventions. The prefix pyr- is linked to pyrimidine-based chemical structures used in thio-/amino-pyrimidine antifolate compounds. The root metham(e) reflects the methylene/methylene group in the molecule and its relation to methylidene derivatives in older antifolate chemistry. The suffix -amine indicates the presence of an amine functional group. First used in pharmacological literature in the mid-20th century as synthetic antifolate drugs emerged for malaria and toxoplasmosis treatment. Over time, pyrimethamine became standardized as a core component of combination therapies, and while many brands exist, the generic term remains pyrimethamine. Its development paralleled advances in folate antagonists, with early research exploring dihydrofolate reductase inhibition as a therapeutic strategy. The term has remained stable in medical lexicon, though branding (e.g., Daraprim) has increased public visibility in recent decades. Etymology notes the common practice in drug naming to reflect chemical class (pyrimidine-based amines) and mechanism (antifolate activity).
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Words that rhyme with "Pyrimethamine"
-ine sounds
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