Bupropion (Wellbutrin)

What bupropion is

Bupropion is a medication sold under the brand name Wellbutrin. When it is used to help people stop smoking it is sold under the brand name Zyban, but it is the same medication. It works mainly on dopamine and norepinephrine, two of the chemical messengers nerve cells use to communicate, and unlike many similar medicines it has little effect on serotonin. Medicines that work this way are sometimes called NDRIs (norepinephrine and dopamine reuptake inhibitors). One reason a clinician might reach for it is that it is less likely than some options to cause sexual side effects or weight gain.

What it treats

Your clinician might suggest bupropion for one of these, among other possible off-label uses:

• Depression
• Seasonal depression, the kind that tends to return in the darker months
• Help with quitting smoking

Whether it is a good fit depends on several factors, including your history and what you are working on. As with everything in psychiatry, that is decided case by case.

How it works

Honestly, no one knows with complete certainty how bupropion produces its benefit. What research supports is that it acts on dopamine and norepinephrine, helping keep more of these messengers available in the spaces between nerve cells, and that this is central to how it helps. It works differently from medicines that act mainly on serotonin. The biology is only part of the picture: how much a medication helps, and how it feels, is individual. Two people on the same medication can have very different experiences.

How to take it

There is no single right way to take bupropion; it depends on you and your clinician. It comes in more than one form, including tablets that release the medication slowly over the day, and those are swallowed whole rather than split, chewed, or crushed. The plan you and your clinician make together is the one to follow, not a number you read online. A few general points apply broadly:

• Take it the way you and your clinician agreed, at about the same time each day. Because it can be activating, your clinician may have you take it earlier so it is less likely to disturb your sleep.
• If you miss a dose, ask your clinician or pharmacist what to do rather than doubling up. Taking extra at once is one of the things that can raise the chance of a seizure.
• Try not to stop on your own. Your clinician can lower it gradually if and when that makes sense.

What to expect

This varies from person to person. Some effects can show up before the benefit does: possible side effects, if they happen, often appear in the first days, while any lift in mood usually takes longer, commonly a few weeks and sometimes more. Some people feel a little more energy or have trouble sleeping early on, and that early stretch is common and tends to ease. Because bupropion can nudge blood pressure up in some people, your clinician may check it from time to time, especially if you are also using a nicotine patch or gum. If nothing has shifted after a fair trial, that is useful information, not a dead end, and there are other options. As always, this is case by case.

Side effects

Not everyone gets side effects, and many that do happen ease over the first weeks. The lists below are possibilities, not certainties.

Possible more common side effects:

• Trouble sleeping, or feeling restless, anxious, or keyed up
• Dry mouth, nausea, or constipation
• Headache or dizziness
• A fine shakiness or tremor
• Sweating more than usual
• Loss of appetite
• Ringing in the ears

If any of these stick around or bother you, they are worth raising. Send a non-urgent message through the patient portal or bring it up at your next visit; often a small change helps.

Less common, but concerning side effects that could require emergency care:

• A seizure
• Signs of an allergic reaction: rash, hives, or swelling of the face, lips, or throat
• A fast, pounding, or irregular heartbeat, or a sharp rise in blood pressure with a severe headache
• Confusion, or hallucinations such as seeing or hearing things that are not there
• Feeling abnormally high, wired, or irritable, with racing thoughts and far less need for sleep than usual
• Any new or worsening thoughts of harming yourself

For any of these, use the help options at the top of this page: call 911 or go to the nearest emergency department for a medical emergency or severe reaction, or call or text 988 for a mental health crisis.

When to reach out, and where

For routine questions, side effects that can wait, or how things are going, send your clinician a message through the patient portal. These are part of your ongoing care and are answered in the normal course of a few business days, so they are best for things that are not urgent.

If something feels urgent, you do not need to wait for a reply. The help options at the top of this page are the fastest way to get care: 911 or the nearest emergency department for a medical emergency or severe reaction, or 988 any time for a mental health crisis or thoughts of self-harm.

Questions to ask your clinician

• What are you hoping bupropion will help with in my case?
• How and when will we know if it is working?
• What should I do if I notice side effects?
• How long should I give it before we reassess?
• What is the plan if this one turns out not to be the right fit?
• How will we handle stopping it, if and when we get there?