What kind of drugs show up in a blood test as methphnoms?

The term "methphnoms" seems to be a typographical error or a miscommunication. If you're referring to drugs that might show up in a blood test as methamphetamine, these typically include methamphetamine itself, as well as substances that may be chemically similar, such as amphetamine. Additionally, certain prescription medications containing amphetamines, like those used to treat ADHD, can also result in a positive test for methamphetamine. It's important to consult specific testing methods and contexts for accurate results.