Alex Renton, the Nelson teen in a coma whose supporters fought to grant him access to cannabis oil medication, is responding to treatment, his mother says.
Alex, 19, has now received two doses of Elixinol, a cannabidiol (CBD) product from the United States, and mother Rose Renton told ONE News he was "calm and settled" following the second treatment.
The family hopes an electroencephalogram (or EEG - a test to measure electrical brain activity) with show positive progress later this week, and that Alex's sedation can be reduced further.
Alex is suffering from a prolonged form of seizure, known as epilepticus, and has been in Wellington Hospital since early April.
Doctors have tried more than 20 mediations to treat him, but none have worked.
His condition sparked a national debate on the benefits and morality of using cannabis oil for medicinal purposes.
Elixinol is manufactured from hemp and the active ingredient is cannabidiol, which is not a psychoactive drug, unlike its recreational relative tetrahydrocannibinol (THC).