one concern for those taking phentermine is that due to the limited amount of time (typically 12 weeks) that phentermine is prescribed, there is an urgency to lose as much weight as possible during this time. however, this is not the intended use of phentermine, as rapid weight loss is neither healthy nor sustainable.

Write the above sentence using proper case.
One concern for those taking phentermine is that due to the limited amount of time (typically 12 weeks) that phentermine is prescribed, there is an urgency to lose as much weight as possible during this time. However, this is not the intended use of phentermine, as rapid weight loss is neither healthy nor sustainable.