A Quick Overview Of Ertapenem
Ertapenem is an antibiotic marketed by Merck as 'Invanz'. More about it here
Pharmaceutical names tend to be a bother to pronounce because they are usually compounds formed from other words. You have to fall back on what is logical phonetically, but you may hear some variance with where the stress in the word is. I'm very confident that my pronunciation of 'Ertepenem' is sound phonetically, with neutral vowels on the last two 'e's.
Neutral vowels are prevalent in English - the 'a' in 'China' and 'Norman', the 'e' in 'the' and so on. They never fall on a stressed vowel.