Timing of Buspirone Administration When Used with Bupropion SR

Medication Characteristics and Timing Considerations

Bupropion is an activating antidepressant that works as a dopamine/norepinephrine reuptake inhibitor, and it should be taken in the morning due to its activating properties that can cause insomnia if taken later in the day, as recommended by the American Academy of Family Physicians 1
The recommended dosing for bupropion SR is typically in the morning, with a second dose (if prescribed) taken before 3 p.m. to minimize the risk of insomnia, according to the American Academy of Family Physicians 1
Buspirone is an anxiolytic medication that is typically dosed 2-3 times daily, as stated by the American Academy of Family Physicians 1

When combining these medications, the timing should be arranged to minimize side effects while maximizing therapeutic benefits, as suggested by the American Academy of Family Physicians 1
Taking buspirone in the evening can help balance the activating effects of bupropion taken earlier in the day, as recommended by the American Academy of Family Physicians 1

Bupropion can cause insomnia in approximately 7-12% of patients, making evening administration problematic, according to the Mayo Clinic 2
Neither medication causes significant sedation that would mandate bedtime-only dosing, as stated by the American Academy of Family Physicians 1

Administer bupropion SR in the morning to minimize sleep disturbances, as recommended by the American Academy of Family Physicians 1
Administer buspirone in the evening to provide anxiolytic coverage overnight, as suggested by the American Academy of Family Physicians 1
If buspirone is prescribed multiple times daily, consider a dosing schedule with morning, afternoon (before 3 p.m.), and evening doses to maintain consistent anxiolytic effects, as recommended by the American Academy of Family Physicians 1

Avoid taking bupropion SR in the evening due to its potential to cause insomnia, as warned by the American Academy of Family Physicians 1 and the Mayo Clinic 2
Do not abruptly discontinue either medication, as this may lead to withdrawal symptoms or rebound anxiety/depression, as advised by the American Academy of Family Physicians 1