Proper Use

Drug information provided by: Merative, Micromedex®

Take this medicine only as directed by your doctor. Do not use more of it, do not use it more often, and do not use it for a longer time than your doctor ordered. To do so may increase the chance of side effects.

This medicine should come with a Medication Guide. Read and follow these instructions carefully. Ask your doctor if you have any questions.

Use only the brand of this medicine that your doctor prescribed. Different brands may not work the same way.

Swallow the tablet whole. Do not break, crush, or chew it.

You may take this medicine with or without food. But if you have nausea, take the medicine with food.

A part of the extended-release tablet may pass into your stool. This is normal and is nothing to worry about.

Use of Zyban® tablets:

  • You may continue to smoke for about 1 week after you start the medicine.
  • Set a target date to quit smoking during your second week of treatment.
  • If you are still having trouble with quitting after using the medicine for at least 7 weeks, talk to your doctor.
  • If you use a nicotine product (eg, patch) together with Zyban®, do not smoke. Smoking may increase the chance for serious side effects.

If you have trouble sleeping (insomnia), do not take this medicine too close to bedtime.

If you use this medicine to prevent depression with seasonal affective disorder, take it during the autumn season before your symptoms start. Continue using the medicine through the winter season and until early spring.

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For oral dosage form (extended-release tablets):
    • For depression:
      • Adults—
        • Aplenzin®: At first, 174 milligrams (mg) once a day in the morning. Your doctor may adjust your dose as needed. However, the dose is usually not more than 522 mg per day.
        • Forfivo XL®: 450 mg once a day.
        • Wellbutrin XL®: At first, 150 mg once a day in the morning. Your doctor may adjust your dose as needed. However, the dose is usually not more than 450 mg per day.
      • Children—Use and dose must be determined by your doctor.
    • For seasonal affective disorder:
      • Adults—
        • Aplenzin®: At first, 174 milligrams (mg) once a day in the morning. Your doctor may adjust your dose as needed. However, the dose is usually not more than 522 mg per day.
        • Wellbutrin XL®: At first, 150 mg once a day in the morning. Your doctor may adjust your dose as needed. However, the dose is usually not more than 300 mg once a day.
      • Children—Use and dose must be determined by your doctor.
  • For oral dosage form (sustained-release tablets):
    • For depression:
      • Adults—At first, 150 milligrams (mg) once a day in the morning. Your doctor may adjust your dose as needed. However, the dose is usually not more than 200 mg two times per day, taken at least 8 hours apart.
      • Children—Use and dose must be determined by your doctor.
    • To quit smoking:
      • Adults—At first, 150 milligrams (mg) once a day for the first 3 days. Your doctor may adjust your dose as needed. However, the dose is usually not more than 300 mg per day.
      • Children—Use and dose must be determined by your doctor.
  • For oral dosage form (tablets):
    • For depression:
      • Adults—At first, 100 milligrams (mg) two times per day. Your doctor may adjust your dose as needed. However, the dose is usually not more than 150 mg three times per day, taken at least 6 hours apart.
      • Children—Use and dose must be determined by your doctor.

Missed Dose

If you miss a dose of this medicine, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

If you are taking the Wellbutrin XL® extended-release tablet and you miss a dose, skip the missed dose and go back to your regular dosing schedule.

Storage

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.

Portions of this document last updated: April 01, 2024

Copyright: © Merative US L.P. 1973, 2024. All rights reserved. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes.