Amphetamines Crossreactivity Table
| Compound | Conc. (Ug/mL) | Effect |
| d-Methamphetamine (cutoff) | 1 | Positive |
| d-Amphetamine | 1 | Positive |
| Methylenedioxyamphetamine (MDA) | 2.5 | Positive |
| Methylenedioxymethamphetamine (MDMA) | 2.5 | Positive |
| Acetaminophen | 1000 | Negative |
| Acetylsalicylic Acid | 1000 | Negative |
| l-Amphetamine | 12.5 | Negative |
| Benzoylecgonine | 1000 | Negative |
| Benzphetamine | 20 | Negative |
| Bupropion | 50 | Negative |
| Buspirone | 1000 | Negative |
| Caffeine | 1000 | Negative |
| Chlorpromazine | 500 | Negative |
| Codeine | 1000 | Negative |
| Dextromethorphan | 1000 | Negative |
| d-Ephedrine | 3000 | Negative |
| d,l-Ephedrine | 700 | Negative |
| l-Ephedrine | 350 | Negative |
| Fenfluramine | 4 | Negative |
| 3-Hydroxy-Tyramine | 500 | Negative |
| Isoxsuprine | 100 | Negative |
| Meperidine | 1000 | Negative |
| Mephentermine | 25 | Negative |
| Methadone | 1000 | Negative |
| l-Methamphetamine | 10 | Negative |
| Methapyrilene | 500 | Negative |
| Morphine | 1000 | Negative |
| Nor-pseudoephedrine | 1000 | Negative |
| Oxazepam | 500 | Negative |
| Phencyclidine | 1000 | Negative |
| Phendimetrazine | 200 | Negative |
| Phenethylamine | 10 | Negative |
| Phenmetrazine | 50 | Negative |
| Phenobarbital | 1000 | Negative |
| Phenothiazine | 10 | Negative |
| Phentermine | 25 | Negative |
| Phenylephrine | 500 | Negative |
| Phenylpropanolamine (PPA) | 250 | Negative |
| Procainamide | 20 | Negative |
| Promethazine | 500 | Negative |
| Propranolol | 200 | Negative |
| d-Pseudoephedrine | 250 | Negative |
| l-Pseudoephedrine | 3000 | Negative |
| Ranitidine | 1000 | Negative |
| Scopolamine | 100 | Negative |
| Secobarbital | 1000 | Negative |
| Setraline | 1000 | Negative |
| Thioridazine | 1000 | Negative |
| Trifluoperazine | 1000 | Negative |
| Triflupromazine | 1000 | Negative |
| Trazodone | 1000 | Negative |
| Tyramine | 500 | Negative |
| top of page | 3/1/05 |
a It is possible that other substances and/or factors (e.g., technical or procedural) not listed above may interfere with the test and cause false results.
b Data shown was collected using SYNCHRON CX Systems. Equivalency between SYNCHRON LX Systems has been established by correlation analysis to SYNCHRON CX Systems.