Is it obligatory for a patient with a chronic neurological condition, whom the doctor advises to take a sedative in the morning, to fast in Ramadan, given the possibility of postponing the medication until night?

It is permissible for the sick person to break their fast during the day in Ramadan, and they must make up the days they missed if they recover.

If they can only work at night and cannot take their medicine with them, then there is no harm in them working at night and taking their medication during the day, and this constitutes an excuse for them to break their fast.

If the illness is expected to be cured, then they must make up the fasts. However, if it is a chronic illness, then there is no make-up required, and they must feed one poor person for each day they missed.