The Centers for Disease Control and Prevention (CDC) is warning those who take medication for ADHD, attention-deficit/hyperactivity disorder, could face a disruption in accessing care after two executives were arrested for a $100 million fraud scheme.

The CDC issued a health advisory to inform public health officials, clinicians and patients about the potential for medication distribution to be affected.

The Department of Justice (DOJ) released information Thursday on the arrests of a California-based digital health company’s CEO and clinical president.

The duo was arrested for their alleged participation in attempting to distribute Adderall over the internet, commit health care fraud by submitting false claims for reimbursement for the drug, and obstructing justice, the DOJ’s release said.