The Oregon Medical Marijuana Program serves 52 children who have a qualifying medical condition, parental consent and a doctor's approval. Like adults, most cite pain as a qualifying condition, though many list multiple health problems, including seizures, nausea and cancer.
Allowing adults to consume medical marijuana is gaining acceptance nationwide. But Mykayla's story underscores the complex issues that arise when states empower parents to administer the controversial drug to children.
Oregon's law, approved by voters 14 years ago, requires no monitoring of a child's medical marijuana use by a pediatrician. The law instead invests authority in parents to decide the dosage, frequency and manner of a child's marijuana consumption.
The state imposes no standards for quality, safety or potency in the production of marijuana.
Little is known about how the drug interacts with the developing body, leading pediatricians say. A recent international study found sustained cannabis use among teens can cause long-term damage to intellect, memory and attention.
Many doctors worry about introducing a child to marijuana when they say other drugs can treat pain and nausea more effectively.
Mykayla's father, who is divorced from the girl's mother, was so disturbed by his daughter's marijuana use that he contacted child welfare officials, police and her oncologist. Jesse Comstock said his concerns were prompted by a visit with Mykayla in August.
"She was stoned out of her mind," said Comstock, 26. "All she wanted to do was lay on the bed and play video games."
But Mykayla's mother and her boyfriend, Erin Purchase and Brandon Krenzler, see the drug as a harmless antidote to leukemia's host of horrors. The couple, regular cannabis users raised in Pendleton, said Mykayla relies almost exclusively on pot to treat pain, nausea, vomiting, depression and sleep problems associated with her cancer treatment.
Mykayla, who favors a knit cupcake cap to cover her fuzz of strawberry-colored hair, said marijuana makes her feel better.
It helps me eat and sleep," she said, nestled against her mother on a couch. "The chemotherapy makes you feel like you want to stay up all night long."
Marijuana, she said, "makes me feel funny, happy."
"She's like she was before," her mother said. "She's a normal kid."
Image: Marijuana capsules, via Shutterstock