Provisional data from the C.D.C. shows there were about 13,000 deaths involving meth nationwide in 2018, more than twice as many as in 2015. That is still far fewer than opioid deaths over all, which passed 47,000, but the pace is accelerating while opioid fatalities have flattened.

The most recent federal data, for example, estimates that from May 2018 to May 2019 there were 24.6 percent more deaths involving meth and other drugs in its class than in the previous year, compared with 9.4 percent more deaths involving fentanyl and other synthetic opioids. Deaths involving meth have been concentrated in the western United States but are moving eastward, even to regions that meth barely touched in the past, like New England.

“This is the one thing that keeps me awake at night,” said Dr. Brett P. Giroir, assistant secretary for health at the Health and Human Services Department, at a conference on stimulant abuse on Monday. “Within a few short months, and you can model it any way you want, methamphetamines will be secondary to fentanyl nationwide associated with overdose deaths.”

Unlike with opioids, there is no way to reverse the effects of a meth overdose, just as there is no medication approved to treat meth addiction and the cravings it creates. For now, treatment for meth addiction consists largely of behavioral therapies with “a much more moderate effect size compared with medication,” said Dr. Nora Volkow, the director of the National Institute on Drug Abuse.

For many here in Oklahoma, what treatments do exist are out of reach. Most poor adults in the state do not qualify for Medicaid coverage that would help those with meth addiction gain access to treatment, because the state has chosen not to expand the program under the Affordable Care Act. And while Oklahoma has won a windfall of money — $355 million — from lawsuits against opioid manufacturers, much of it is specifically for fighting opioid addiction.

“We know there is funding coming in for the opioid problem,” said Mimi Tarrasch, the chief officer of Women in Recovery, an alternative sentencing program in Tulsa. “But what I see, and what our community continues to see, is really a lot of addiction to methamphetamine.”