Tests indicate the ecstasy pill taken by a teen shortly before she slipped into a coma was not tainted with any other drug, authorities said Thursday.

Brittney Chambers (pictured, left), took the pill on her 16th birthday party Jan. 28 and died after she was taken off life support several days later.

Laboratory tests released Thursday showed that a pill from the same batch as the one Chambers took was the drug ecstasy and that it contained no other chemical compounds or contaminates, the Boulder County Sheriff's Office said.

Chambers was violently ill and convulsing before she slipped into a coma. Investigators wanted to know whether the pill she took was laced with another drug.

Sheriff George Epp said that the pill tested came from a batch owned by 20-year-old Travis Schuerger. Schuerger, 20, and 18-year-old Rebecca Sheffield, who allegedly supplied the drug to friends of Chambers, were formally charged on Thursday.

Four other juveniles in the case are scheduled to appear in Boulder court Friday.

Additional Resources:

• A Discussion For Parents About Ecstasy
• Ecstasy 101
• Facts About Ecstasy
• What Ecstasy Does
• What Ecstasy Pills Look Like
• What Are Club Drugs?
• Club Drugs, Just The Facts
• Seven-part series for students in grades 5 - 9 to learn about the effects of drug abuse on the body and the brain.

Previous Stories:

• February 8, 2001: Boulder Probe Into Ecstasy Party Continues
• February 7, 2001: Boulder Deputies Suspended Over Ecstasy Case
• February 5, 2001: Ecstasy Suspects Due In Court This Week
• February 4, 2001: Ecstasy Suspects Post Bond, Victim's Family Plans Memorial
• February 3, 2001: Girl In Ecstasy-Induced Coma Dies
• February 1, 2001: Arrests Are Near In Ecstasy Sale
• January 31, 2001: Girl Remains In Coma As Authorities Issue Ecstasy Warning
• January 29, 2001: Girl In Critical Condition After Consuming 'Ecstasy' Drug