Gestanon is a medication used to prevent the development of blood clots. Its spelling can be explained using the International Phonetic Alphabet (IPA) as follows: /dʒɛsˈtænɑːn/. The first syllable is pronounced with a 'j' sound like in 'jump', followed by a short 'e' sound as in 'pet'. The second syllable includes the 's' sound pronounced like 'ss' and a short 'a' sound like in 'cat'. The final syllable comprises a long 'a' sound like in 'father' followed by an 'n' sound. The word Gestanon can be pronounced using these phonetic guidelines.