How Much Bupropion Is In Contrave? | Dose Math Made Simple

If you’re taking Contrave, the bupropion number matters for one plain reason: bupropion is the part of the combo with dose limits and dose-linked side effects. Once you know the milligrams per tablet and the step-up schedule, you can do the math in seconds and double-check what you’re taking.

This page spells out the bupropion content per tablet, shows how the weekly titration adds up, and flags the spots where the daily total can change: missed doses, dose adjustments for organ impairment, and mix-ups with other bupropion medicines.

What’s Inside One Contrave Tablet

Contrave is a fixed-dose combo tablet. Each extended-release tablet contains:

• Bupropion HCl 90 mg
• Naltrexone HCl 8 mg

That 90 mg bupropion figure is printed in the official labeling and drug listing. You can verify it in the FDA prescribing information for Contrave and the DailyMed drug listing.

Because the tablet is extended-release, it’s meant to be swallowed whole. Crushing, chewing, or splitting changes how the medicine releases and can raise side effects.

How Much Bupropion Is In Contrave? Per Tablet And Per Day

Here’s the core math: 90 mg of bupropion per tablet. Multiply that by how many tablets you take in a day.

The standard ramp-up schedule builds to a maintenance total of 4 tablets per day, taken as two tablets in the morning and two tablets in the evening. That daily total equals 360 mg of bupropion (4 × 90 mg).

The schedule is laid out in the product labeling and the brand dosing page for clinicians. If you want to see the week-by-week pattern exactly as written, check the Contrave dosing schedule.

How The Weekly Step-Up Works

Most people start low and step up over about four weeks. The dose rises in small jumps so your body has time to adjust. If nausea or sleep trouble hits hard, prescribers often hold at a step longer before moving up.

On your pharmacy label, you’ll usually see the daily pattern written as a morning dose and an evening dose. If you see wording like “two tablets twice daily,” translate it into a 24-hour count: two tablets in the morning plus two tablets in the evening equals four tablets in a day.

How To Calculate Your Daily Total

1. Count how many Contrave tablets you take in a full day.
2. Multiply that number by 90 mg.
3. Write the result down. It’s the bupropion total for that day.

That’s it. No conversions. No guessing.

Why The Bupropion Number Matters

Contrave is a weight-loss medicine, yet one of its ingredients is also used on its own for depression and smoking cessation. That overlap is where people slip up. If you also take another bupropion product, your daily total can jump without you noticing.

The FDA labeling lists use of other bupropion-containing products as a contraindication. That’s a clear signal: stacking bupropion sources is not a casual decision. Keep a clean med list and bring it to every refill visit.

Dose-Linked Effects To Watch

Bupropion can raise blood pressure and heart rate in some people, and it can lower the seizure threshold. The chance of a seizure rises as the dose rises, and the labeling calls out this relationship. High-fat meals can also increase exposure, which is why labeling warns against taking Contrave with high-fat meals.

If you want the plain-language warning about mood changes and suicidal thoughts that applies to bupropion-containing products, read the MedlinePlus bupropion monograph and the Medication Guide that comes with your prescription.

Interactions That Can Change Your Effective Exposure

Milligrams on the label are not the whole story. Other medicines can change how your body processes bupropion, and bupropion can change levels of certain other drugs. The prescribing information describes interaction pathways in detail, including effects on certain CYP2D6 substrates.

If you’re starting, stopping, or changing doses of other meds, it’s normal for a prescriber or pharmacist to re-check your Contrave plan. That’s not a hassle. It’s how safe dosing stays on track.

Bupropion Amounts At Common Contrave Doses

The table below puts the usual schedule and the bupropion totals in one place. Use it to sanity-check your bottle label and your current week of dosing.

Contrave Pattern	Bupropion Total	Plain-English Note
1 tablet (single dose)	90 mg	One tablet equals one 90 mg chunk of bupropion.
Week 1: 1 AM, 0 PM (1/day)	90 mg/day	Starter dose; side effects often show up early.
Week 2: 1 AM, 1 PM (2/day)	180 mg/day	Two tablets daily split across morning and evening.
Week 3: 2 AM, 1 PM (3/day)	270 mg/day	Three tablets daily; move the evening dose earlier if sleep is rough.
Week 4+: 2 AM, 2 PM (4/day)	360 mg/day	Standard maintenance total in labeling.
Missed evening dose (took 2 AM only)	180 mg that day	Don’t “stack” extra tablets later to catch up.
Missed morning dose (took 2 PM only)	180 mg that day	Same total as above; timing changes how you feel.
Stayed at 1 AM, 1 PM by plan (2/day)	180 mg/day	Some people remain here if higher steps don’t sit well.
Paused titration for a week	Varies	Holding steady can be a normal choice if side effects flare.

Cases Where Your Daily Total May Be Lower

The “four tablets per day” maintenance target is the standard plan, not a promise for every person. Some situations call for a lower ceiling or a slower step-up.

Kidney Or Liver Impairment

Contrave dosing may need adjustment in people with kidney or liver impairment. The full prescribing information includes limits for these groups. If your prescriber gives you a reduced plan, the bupropion math stays the same: tablets per day × 90 mg.

Side Effects That Don’t Ease

Nausea, headache, trouble sleeping, and jittery feelings can show up during titration. Many people notice these settle after the first couple of weeks once timing and meals are steady. If they don’t, prescribers often hold at a step longer or reduce the dose rather than pushing on.

Blood Pressure That Runs High

Uncontrolled hypertension is listed as a contraindication in labeling. Even in people without that issue, blood pressure checks during the first month are common because bupropion can raise it.

Bupropion Dose In Contrave By Week And Timing Tips

The day-to-day math is simple. The hard part is taking the tablets in a way that fits your life and keeps side effects down.

Pick Two Consistent Anchors

Most people do best with two steady times: a morning dose with breakfast, and an evening dose with an earlier dinner. A late evening dose can mess with sleep for some people.

Avoid High-Fat Meals At Dosing Time

Labeling warns against taking Contrave with high-fat meals because it can increase exposure. This can matter more once you reach three or four tablets per day.

Don’t Double Up After A Missed Dose

If you miss a dose, the safest move is usually to take the next dose at the next scheduled time. Taking extra tablets to catch up can spike your daily bupropion total and make side effects more likely.

Quick Checks Before You Refill Or Step Up

This checklist is built for real life. Use it before you move to the next week, and again before any refill. It helps you catch mix-ups that change your bupropion total.

Check	What To Do	What You’re Preventing
Count tablets per day	Write “tablets/day × 90 mg” on a note in your phone.	Accidental dose creep across weeks.
Scan your med list	Look for any other product that contains bupropion.	Stacking bupropion from two prescriptions.
Check meal timing	Keep doses away from very fatty meals.	Higher exposure and stronger side effects.
Watch blood pressure	Track readings during titration if you can.	Missing a rise that needs dose changes.
Note sleep changes	Move the evening dose earlier if sleep is rough.	Insomnia that pushes you to quit early.
Be careful with alcohol changes	Avoid abrupt heavy-to-zero shifts without prescriber input.	Seizure risk listed in contraindications.

Common Dose Math Mistakes

Most dosing errors with Contrave are simple arithmetic errors or timing slip-ups. Here are the repeat offenders.

Mixing Up “Two Tablets Twice Daily”

“Two tablets twice daily” means four tablets total in a day. People sometimes read it as two tablets total, split into two times. If you’re unsure, count the tablets you actually swallow over 24 hours and multiply by 90 mg.

Assuming Every Bottle Is The Same Strength

Contrave is sold as one tablet strength, yet mix-ups still happen when people switch pharmacies or store meds together. The tablet imprint listed on the drug label can help confirm you have the right product.

Trying To Compare Contrave To Standalone Bupropion By “Tablet Count”

Standalone bupropion tablets come in multiple strengths and release types. A “one tablet” comparison is meaningless unless you match milligrams and release form. Stick to the number on your label, not the number of pills.

When To Call Your Prescriber Right Away

Weight-loss meds are not “set it and forget it.” Call your prescriber promptly if you have a seizure, severe allergic symptoms, chest pain, fainting, suicidal thoughts, or a sharp spike in blood pressure readings. Those are stop-and-check moments, not “push through” moments.

If you’re taking opioids for pain, or you plan to start them, call before you take your next Contrave dose. Naltrexone blocks opioid effects and can trigger withdrawal in people who use opioids.

A Simple Way To Keep Your Bupropion Total Straight

If you only take one takeaway from this page, make it this: Contrave bupropion math is tablets per day × 90 mg. Write your daily total once, then update it when your tablet count changes.

That single habit makes it easier to catch dose mix-ups early, talk clearly with your prescriber, and keep your plan aligned with the labeling.