Plasmodium vivax the first-line treatment for "P. falciparum" malaria, it may also be used for P. vivax malaria in combination with primaquine for radical cure. An exception is artesunate plus sulfadoxine-pyrimethamine (AS+SP), which is not effective against P. vivax in many places. Mefloquine is a good alternative and in some countries is more readily available. Atovaquone-proguanil is an effective alternative in patients unable to tolerate chloroquine. Quinine may be used to treat "vivax" malaria but is associated with inferior outcomes. 32–100% of patients will relapse following successful treatment of "P. vivax" infection if a radical cure (eradication of liver stages) is not
Hyperbaric treatment schedules has shown success over the years. IWR is not without risk and should be undertaken with certain precautions. IWR would only be suitable for an organised and disciplined group of divers with suitable equipment and practical training in the procedure. Treatment of decompression sickness, arterial gas embolism, and other medical applications. The type of chamber which can be used depends on the maximum pressure required for the schedule, and what gases are used for treatment. Most treatment protocols for diving injuries require an attendant in the chamber, and a medical lock to transfer medical supplies into the chamber while under