An Adelaide woman on drug charges over the supply of medicinal cannabis will face a sentencing hearing and is hoping to be shown the same compassion she showed others.

Jenny Hallam will come before the District Court on Tuesday for submissions and to give evidence on her own behalf.

In a recent Facebook post, she was it would be a chance "for me to put my evidence forward".

Jenny Hallam is a medical cannabis oil producer and activist

Ms Hallam's home at Hillier, in Adelaide's north, was raided by police in January 2017 but she was not charged with drug offences until three months later.

She had intended to take the case to trial, arguing she acted out of medical necessity in the supply of cannabis oil to those who needed the drug to relieve pain.

But in February this year, she pleaded guilty to the charges.

Access to medicinal cannabis has been legal in South Australia for some time but it can only be prescribed by doctors under certain circumstances.

Proponents say, for some people, getting hold of suitable products remains difficult.

In her Facebook post, Ms Hallam said the period since the police raids had been the "worst of my life".

"This last 999 days have been the worst of my life, but hopefully it will be over soon," she said.

"Hopefully the judge will show me the same compassion I showed the people I helped."

Ms Hallam said the prosecutors were asking for a custodial sentence but were not opposed to it being suspended.