HIV medications can be oral, with the latest drugs providing a once-daily option. There are also injectable options that can be administered monthly or every two months. On the horizon, we see the implantable version of these drugs, so people can get medication implanted just once a year. If a person has developed resistance to a treatment medication or class of treatment medication, they might switch to a combination of medicines or infusion. Infusion is reserved for people who have developed resistance to multiple drugs.