Which is not accidental, given the nature of the change in the needle when it is reused. It should be noted that the manufacturer has developed a special technology for the manufacture of topamax insulin needles. However, after the first injection, the needle loses its atraumatic properties, and with frequent use it becomes completely unusable. Infection of the needle occurred more often, the less often it was changed. But in some patients, the needle turned out to be infected after the first injection.