What Actually Happens If You Miss Doses of Your HIV Medication

HIV medications work by keeping the virus under control in your body. Missing doses gives it the chance to start multiplying again. Even short treatment gaps can raise your risk of the virus “rebounding,” or going back up to detectable levels in your bloodstream. The more doses you miss, the higher your odds of drug resistance and illness.

You probably won't feel different right away if you miss a few doses of your meds, but changes can be happening inside your body before symptoms appear. Your viral load (the amount of HIV virus in your blood) may start rising, and your CD4 cell count — white blood cells that fight infection — may go down, even if your viral load has been undetectable for a long time.

Increased viral loads are typically what’s called “blips,” but if you go without HIV treatment for a longer period, you’re more likely to have a viral rebound. Doctors consider you to be on a viral rebound when your viral load is detectable consistently over time. A viral rebound can make your immune system weaker and raise your risk of HIV complications.

When you skip doses and HIV starts making more copies of itself, mutations can happen. Some of those mutations may make certain medications less effective, which is called drug resistance. Not only could your current treatment stop working, but you might also be limiting future treatment choices.

When your viral load is undetectable, you can’t sexually transmit HIV. But that protection is no longer guaranteed when there are treatment gaps and your viral load rises. If you've missed enough doses to be concerned about viral rebound, talk to your doctor about ways to lower the possibility of infecting others until your viral load is undetectable again.

It isn’t likely to cause issues right away. Tell your doctor as soon as you realize you missed a dose. Typically, they’ll recommend you take the missed dose as soon as you remember and stick to your normal treatment schedule.

If you’re struggling to remember to take your medications every day, connect it with a practice that’s already part of your daily routine, like brushing your teeth or eating breakfast. This makes it more of an automatic process and lowers the chances that your busy schedule, interruptions, or travel will get in the way.

There are many systems out there to help you remember your medication. You can download apps that remind you when it’s time to take your medication or schedule a repeating alarm on your smartphone. Sticky notes on your bathroom mirror or stashing your medication in a visible location you see every day work, too.

Making sure you’re always stocked is key to staying on track with treatment. Mark refill dates on your calendar, enroll in your pharmacy’s automatic refill program if available, and request refills before your supply gets low. Ask about mail-order options if your work schedule or transportation are barriers to getting your meds on time. 

Talk to your doctor, social worker, or benefits counselor about what options are available if your medication coverage changes. They may be able to help you secure emergency medication assistance before a gap in treatment happens.

When money is tight, make sure your HIV medications don't get cut from the budget. HIV clinics often have benefits counselors who can connect you with assistance programs. Resources include the Ryan White HIV/AIDS Program, AIDS Drug Assistance Programs (ADAPs), Medicaid, Marketplace insurance assistance, and manufacturer patient assistance programs.