Qeeni, the short answer is yes, the morphine will trigger a ‘hit’ in the test. As a methadone patient and a person who changed his job often, I found that the tests must be specifically geared to find methadone and companies would have to pay additional charges for such a test. This is unlikely because of the federal laws that protect and permit methadone users under the guidance of the Federal Handicap Employment laws.
I’ve been an opiate addict for 25+ years and happen to have quite a lot of experience with the Methadone and Suboxone/Subatex programs. I don’t know of any drug maintenance programs in this country that use morphine in any form as a treatment for addicts. This means that I must come to the conclusion that A; you’re using morphine under a doctor’s care for some pain treatment, or B; that you’re using morphine based drugs for recreation.
If it’s A, then you simply have the company call your doctor, (the test facility’s doctor will call and ask you for that number after they detect the drug).
But if it’s B, then I have to conclude that the methadone dose that you’re on is very small. Any opiate addict knows that Methadone and/or Suboxone will ‘lock out’ any opiate or semi-synthetic opiate based drug from having any affect on the user at all. Of course, there is the possibility that you are taking a very small dose and/or only taking it when you’re out of the ‘real stuff’.
I have had a good many different jobs in the 25 years that I was a drug addict, (clean since 1999), and was subjected to drug tests quite often. My drug of choice, (as it were), was heroin and I found out pretty quickly that most institutions that are likely to ask you to take a drug screen test, will ask the testing facility that they hired to do the "standard 4" test. This would be for Marijuana, Cocaine, Alcohol, and Opiates. I can say with 95% confidence that the institution that is sending you for testing is paying for that "Standard 4". That testing may have been changed to include methamphetamine since that drug had a relatively big jump in popularity for the last 7 or 8 years. I know that methamphetamines of any kind were not included in the tests when I was using it heavily in the ‘80’s. Of course, if the institution is a parole based operation, high security operation, or a drug treatment facility, (like a Methadone dispensing center), the testing can be far more intricate and include things like barbiturates, diazepam’s, and all three of the 'codones'. The list is even bigger than that but you get the picture.