A man with a history of suicidal tendencies was under the influence of alcohol and drugs when he may have purposely caused a head-on crash that killed himself and a mother of three on a Butler County road in June, authorities said.

Toxicology reports showed 38-year-old Michael H. Reid of Butler Township was over the legal limit for alcohol and he had an antidepressant and synthetic codeine in his body when he died.

“He was obviously impaired,” state police Lt. Eric Hermick said Tuesday of Reid.

Police say Reid was speeding — possibly traveling as much as 100 mph — on Route 68 in Forward Township about 11:20 p.m. June 18 when he drove into the oncoming lane and hit a Jeep Cherokee driven by Hannah Swigart.

Reid and Swigart, 36, of Butler, who had never crossed paths in their lives, both died instantly in the collision.

Police recently received the results of toxicology testing that revealed Reid’s blood-alcohol was 0.098 percent. A level of 0.08 percent is considered intoxicated under state law.

Reid’s blood also tested positive for paroxetine, a central nervous system medication that is marketed as Paxil in the United States. Paxil is used to treat such conditions as depression, obsessive-compulsive disorder, anxiety disorders and post-traumatic stress disorder.

Hermick said he did not know if Reid had a prescription for Paxil. However, the toxicology report indicated that he had an abnormally high level of the drug.

“A normal dose is 86 nanograms per milliliter” Hermick said. “(Reid) had 110 nanograms.”

According to WebMD website, the drug can make users dizzy or drowsy or cause blurred vision. Users are warned to avoid alcohol when taking Paxil.

Additionally, Reid had dextromethorphan, or DXM, in his system, police said. DXM is considered a synthetic of codeine, and is used in hundreds of over-the-counter medications including cough syrup.

In Pennsylvania, DXM is classified as a “potential driver impairing” drug.

The Drug Enforcement Administration classifies DXM as a “drug of concern” because of its potential for misuse, but there are no legal restrictions on buying the drug.

High doses of DXM, according to the National Institutes of Health, can produce intoxication, hallucinations, seizures and “out of body” sensations similar to PCP and LSD.

Only minutes before the deadly wreck, investigators said, Reid’s ex-girlfriend called 911 to report that he had violated a protection from abuse order by breaking a window and throwing a rock at a truck in the driveway of her Butler Township home.

He had left by the time an officer arrived, but called his girlfriend who handed the phone to the officer so he could speak to Reid.

“He said, ‘I’m not coming up to talk to you. You’ll read about me in the paper tomorrow,’” said Butler Township Police Chief John Hays.

Butler County Court records disclosed that Reid had attempted suicide before. His former girlfriend in May tried to have him placed in a mental health facility after a third suicide try, court documents showed.

Based on what Reid told police the night of the wreck and his history of suicide attempts, Hermick said he believes the crash was likely intentional.

“But the coroner can’t say that beyond a reasonable doubt,” Hermick said.

The death certificates for Reid and Swigart list the cause of each death as blunt force trauma and the manner as accidental.

In 2009, the news service Bloomberg reported that Paxil-maker GlaxoSmithKline may have paid almost $1 billion to settle lawsuits alleging serious side effects from DXM, including birth defects, addiction and suicides or attempted suicides.

GlaxoSmithKline has not confirmed the $1 billion, and, in settling at least some of the lawsuits, did not admit liability, the report noted.

Swigart, who was driving home after finishing her shift as a supervisor at a UPS facility near Zelienople, had no alcohol or drugs in her system, police said.