Abilify Maintena is given once every four weeks (once monthly) as a single injection. The standard dose is 400 mg, though some people receive a reduced dose of 300 mg depending on side effects or how their body processes the medication.
What to Expect at Each Appointment
Each visit is relatively quick. A healthcare provider administers the injection into either the upper arm (deltoid) or the buttock (gluteal muscle), and the site is typically rotated between appointments to reduce soreness. The injection itself is a small volume, just 1.5 to 2 mL depending on the dose, so the actual administration takes only moments. You’ll schedule your next visit roughly four weeks out each time.
The First Injection Works Differently
When you first start Abilify Maintena, the injection alone isn’t enough to reach effective levels in your body right away. The medication releases slowly from the injection site, so it takes time to build up. To bridge that gap, you’ll need to continue taking an oral antipsychotic for 14 consecutive days after your first shot. This applies whether you’re switching from oral aripiprazole or from a different antipsychotic entirely.
After that two-week overlap period, the injection sustains therapeutic levels on its own, and you can stop the oral medication. From the second injection onward, no oral supplement is needed as long as you stay on schedule.
What Happens If You Miss a Dose
Life happens, and the protocol for a missed dose depends on two things: how many injections you’ve already received and how late you are.
During the early phase (your second or third injection), you have a narrower window. If you’re less than five weeks out from your last shot, you can simply get the injection as soon as possible. If more than five weeks have passed, you’ll need to restart oral medication for 14 days alongside your next injection, essentially repeating the startup process.
Once you’ve had four or more injections, the window is a bit more forgiving. You can receive a late injection up to six weeks after your previous one without any oral bridging. Beyond six weeks, though, you’ll again need 14 days of oral medication to re-establish adequate levels. The key takeaway: staying close to your four-week schedule avoids the hassle of restarting oral pills.
Dose Adjustments Some People Need
Not everyone stays on the standard 400 mg dose. Your provider may lower it to 300 mg if you experience bothersome side effects. A dose reduction is also necessary for people whose bodies break down the medication more slowly than average, a trait that can be identified through genetic testing. Certain other medications can also slow the breakdown process, particularly some antidepressants and antifungal drugs. In those situations, the monthly dose is typically cut to keep blood levels from climbing too high.
A Two-Month Option Now Exists
If monthly visits feel burdensome, a newer formulation called Abilify Asimtufii delivers the same active ingredient on a every-two-month schedule instead. It comes in higher doses (720 mg or 960 mg) to compensate for the longer interval and is injected into the gluteal muscle only. This option cuts your required clinic visits roughly in half, which can make a real difference for people juggling work schedules, transportation challenges, or caregiver logistics. Your provider can help determine whether switching from the monthly to the bimonthly formulation makes sense for your situation.