Mavyret is taken as three tablets, all at the same time, once a day with food. The full course lasts 8 or 12 weeks depending on your specific situation, and cure rates across clinical trials reached 95% to 99%. Getting the details right, especially the food requirement and consistent timing, helps the medication work as effectively as possible.
Daily Dose: Three Tablets With Food
Each Mavyret tablet contains two active ingredients that work together to stop the hepatitis C virus from replicating. Your daily dose is three tablets taken together, not spread throughout the day. Take all three just before or right after a snack or meal.
The food requirement is not optional. Eating with your dose increases absorption of the active ingredients by 40% to 163% compared to taking them on an empty stomach. Without food, your body simply doesn’t absorb enough of the medication to maintain effective drug levels. The meal doesn’t need to be large or specific. A snack works fine, as long as you’re eating something.
Pick a time of day that works with your routine and stick with it. Many people pair it with breakfast or dinner since those are the easiest meals to keep consistent. Taking it at the same time each day keeps drug levels steady in your bloodstream.
How Long You’ll Be on Treatment
Most people take Mavyret for 8 weeks. This applies to all treatment-naive patients (meaning you haven’t tried hepatitis C treatment before), regardless of which genotype you have and regardless of whether you have compensated cirrhosis. Some patients who have had prior treatment or who have certain treatment histories may need a 12-week course instead. Your prescriber will determine the right duration based on your history.
In clinical trials, 8 weeks of treatment produced cure rates of 99% for genotype 1, 98% for genotype 2, and about 95% for genotype 3. Genotypes 4, 5, and 6 showed similarly high success rates. “Cure” here means the virus was undetectable in the blood 12 weeks after finishing treatment.
What to Do if You Miss a Dose
The rule hinges on an 18-hour window. If it has been less than 18 hours since you normally take your dose, take it as soon as you remember, then resume your regular schedule the next day. If more than 18 hours have passed, skip the missed dose entirely and just take your next dose at the usual time. Do not double up to make up for a missed dose.
An occasional missed dose is unlikely to derail your treatment, but consistency matters over the full course. Setting a daily alarm or using a pill organizer can help keep you on track.
Who Should Not Take Mavyret
Mavyret is not safe for people with moderate or severe liver impairment. Doctors classify liver function using a scoring system with three categories (A, B, and C), where A is mild and C is severe. Mavyret is approved for patients with mild impairment but is contraindicated in those with moderate or severe impairment, as well as anyone with a history of liver decompensation, a condition where the liver can no longer perform its basic functions. In those patients, the drug builds up to dangerously high levels in the body. Cases of liver failure have been reported in post-marketing surveillance among patients who should not have been prescribed it.
Medications That Interact With Mavyret
Mavyret interacts with a number of common medications. Before starting treatment, make sure your prescriber has a complete list of everything you take, including over-the-counter drugs and supplements. Certain cholesterol-lowering statins, hormonal birth control containing ethinyl estradiol, and medications that affect liver enzymes can cause serious interactions. Some need dose adjustments, others are completely incompatible with Mavyret. Your pharmacist or hepatologist will review your medication list and flag any conflicts before you begin.
Tips for Staying on Track
Eight weeks feels short, but staying disciplined every single day is what makes the difference between clearing the virus and needing retreatment. A few practical strategies help:
- Pair it with a habit. Link your dose to something you already do daily, like your morning coffee or evening meal.
- Use a pill organizer. Loading a weekly organizer lets you see at a glance whether you’ve taken today’s dose.
- Keep tablets in their original packaging until you’re ready to take them, and store them at room temperature away from moisture.
- Set a phone alarm. A simple daily reminder at the same time eliminates guesswork.
If you travel across time zones during treatment, try to keep your doses roughly 24 hours apart rather than shifting dramatically. A shift of a few hours is fine as long as you take the tablets with food and don’t exceed the 18-hour missed dose window.
What to Expect During Treatment
Most people tolerate Mavyret well. The most commonly reported side effects in clinical trials were headache, fatigue, and nausea, and these were generally mild. You won’t feel the medication “working” in any obvious way, which can make it tempting to skip doses, but the drug is actively suppressing viral replication from the first day. Your prescriber will order blood tests during and after treatment to confirm the virus is responding and ultimately undetectable.
Twelve weeks after your last dose, you’ll have a final blood draw. If the virus is undetectable at that point, you’re considered cured. Hepatitis C does not come back on its own after a successful course of treatment, though reinfection through new exposure is still possible.