Key takeaway
A positive drug test feels like proof of misuse and a reason to stop your medicine. A laboratory positive does not automatically mean you misused drugs. Ask for the written policy and a chance to explain a lawful prescription, including buprenorphine or methadone. Do not stop that medicine to clear the test.
Last updated: Mon Oct 05 2026 00:00:00 GMT+0000 (Coordinated Universal Time)
A positive line on a lab report feels like a firing notice, and the quick fix in your head is to stop the medicine so the next test looks clean. Ask for the written policy and a chance to explain a lawful prescription. Do not stop buprenorphine, methadone, or another prescribed medicine to clear that line.
If you stopped alcohol or a benzodiazepine because of this test and you are seizing, cannot be woken, or cannot breathe, call 911. For a mental health crisis, call or text 988.
A positive is not automatic proof of misuse
SAMHSA says a laboratory-confirmed positive does not, by itself, mean an employee or a job applicant misused drugs. For federally regulated testing, an HHS-certified laboratory runs the specimen and a medical review officer interprets it. That officer is a licensed physician who reads the result together with your medical history and an interview.
A negative result does not show that you never used illicit drugs or alcohol, and it is not a guarantee against later use. A result marked invalid, adulterated, or substituted does not automatically mean you tampered with the specimen.
Federal collections are split. Container A is tested. Container B is kept. If you are a federal employee, or you work in a safety- or security-sensitive industry, and the medical review officer verifies a positive, you have the right to a second HHS-certified lab test of container B. SAMHSA says that second test is not required of every employer, and that employers should include the right anyway. Your handbook is the private rule. Ask for it in writing.
A policy may test before hire, after an accident, at random, for a documented safety concern, or on other occasions SAMHSA lists. Employees should be told in advance when drug testing is part of a physical. Ask which of those your workplace actually uses.
Do not stop a lawful medicine to clear the test
The EEOC says an employer should give anyone tested a chance to explain lawful opioid use that could cause the result. One way to do that is to ask everyone who tests positive. Opioids in that document include heroin and also buprenorphine and methadone prescribed to treat opioid addiction. If you take that medicine as directed, the use is legal. Under the ADA, you cannot be denied a job or fired for being in that program unless you cannot do the job safely and effectively, or another federal law disqualifies you. Opioid addiction can be a disability. An employer may still deny an accommodation if opioids are used illegally. The document explains existing requirements. It does not bind the public as a new law.
Read those medicines before you stop buprenorphine or methadone so a test will look blank. Stopping a benzodiazepine abruptly can cause seizures. A sudden stop after long heavy drinking can be life-threatening. A human-resources deadline is not a detox plan. Read alcohol withdrawal if that is the history.
Depending on the workplace, SAMHSA says a positive may lead to an employee assistance program, to treatment, or to discipline. Which ending yours uses is in the policy. SAMHSA also tells employers to protect the confidentiality of testing records. A result sent to the whole team is not that design. What a treatment program may share is a different file, covered in treatment-record privacy. If a benefit exists, read employee assistance programs.
The EEOC's employer booklet says a test for illegal drugs is not a medical exam, and that the ADA does not encourage, authorize, or prohibit drug tests. Current illegal use is not protected when the employer acts on that use. People who have finished rehabilitation, or who are in it and are no longer using illegally, are outside that exclusion. So are people wrongly regarded as currently using. Questions that come before a job offer are in interviewing after rehab.
A transportation job has an immediate step
If your work is a DOT safety-sensitive function, a verified positive means immediate removal from those functions, without waiting for the paperwork or the split specimen. A verified adulterated or substituted result is treated as a refusal and brings the same removal. You are not returned until the return-to-duty process is complete. Read that process. If the job is a desk or a warehouse outside DOT testing, do not assume this section applies. If it is covered, do not assume an office handbook replaces it.
Who you tell, and what a supervisor is not supposed to diagnose, is in talking to your boss about rehab. Time away from work is in workplace leave. A studied program where a negative test is a condition of that day's paid participation is a different arrangement, described in returning to work.
Search FindTreatment.gov if the next useful step is a clinician. Call or text (800) 653-9376 if you want help finding care while you sort the policy.
Additional Resources
Sources cited on this page:
- SAMHSA: Workplace Drug Testing Resources
- EEOC: Use of Codeine, Oxycodone, and Other Opioids, Information for Employees
- EEOC: The ADA, Your Responsibilities as an Employer
- 49 CFR 40.23, employer actions after verified drug test results
- FDA: Boxed warning on benzodiazepines
- NIAAA: Alcohol use disorder, risk, diagnosis, and recovery (withdrawal warning)
- 988 Suicide & Crisis Lifeline
- SAMHSA FindTreatment.gov
Common Questions
Does a positive drug test mean I misused drugs?
Not by itself. SAMHSA says a laboratory-confirmed positive does not automatically mean an employee or applicant misused drugs. A result marked invalid, adulterated, or substituted also does not automatically mean the person tampered with the specimen. For federally regulated tests, a medical review officer, who is a licensed physician, checks the lab result against history and an interview. A negative result does not prove the person never used drugs and does not guarantee future abstinence.
What drugs are on the federal panel?
SAMHSA says federal agency tests cover amphetamines, including methamphetamine, MDA, and MDMA, plus cocaine, marijuana, opioids, and phencyclidine, along with urine validity tests. Opioids on that panel include heroin, codeine, hydrocodone, hydromorphone, morphine, oxycodone, and oxymorphone. Other Schedule I or II drugs may be added case by case. A private employer may order a different panel. Do not assume a handbook that says drug test means these five.
Who has a right to a second test of the split specimen?
Federal collections are split into containers A and B. Container A goes to an HHS-certified laboratory. Container B is kept. Federal employees, and employees in safety- and security-sensitive industries, who receive a verified positive have the right to a second HHS-certified lab test of container B. SAMHSA says that second test is not required of every employer, and that employers should include the right anyway. Ask for your handbook in writing.
Is a drug test a medical exam under the ADA?
The EEOC says a test for illegal drug use is not a medical examination, so it is not banned as a pre-offer medical exam. The ADA does not encourage, authorize, or prohibit drug tests. People currently using drugs illegally are not protected when the employer acts on that use. People in rehabilitation who are no longer using illegally are outside that exclusion, as are people wrongly regarded as currently using. Questions an interviewer may ask are a separate guide.
What happens in a transportation job?
Under 49 CFR 40.23, a verified positive means the employer must immediately remove the employee from safety-sensitive functions, without waiting for the written report or a split-specimen result. A verified adulterated or substituted result is a refusal and brings the same removal. The person is not returned until the return-to-duty process is complete. That section applies to DOT safety-sensitive work. It does not govern a job outside that testing.