Drug Detection Times
The following table shows how long different drugs can be detected in urine tests.
Different things can affect these times such as:
- body weight
- medication and other drugs and alcohol
- amount of drug taken
- regular use of drug/alcohol or occasional use
 
|
|
| Alcohol | 3-4 days |
| Amphetamines | 2-4 days |
| Barbiturates: Short-Acting (e.g. pentobarbitone) | 1 day |
| Barbiturates: Long-Acting (e.g. phenobarbitone) | 2-3 weeks |
| Benzodiazepines (e.g. diazepam) | 3-7 days |
| Cannabinoids | 3-30 days (up to 2 months in habitual users) |
| Cocaine | 2-4 days |
| Codeine | 2-5 days |
| Dihydrocodeine | 1-4 days |
| Ephedrine | 1 day |
| Ketamine | 2-4 days |
| LSD | 1-4 days |
| MDMA | 1-3 days |
| Methadone | 3-5 days |
| Metamphetamines | 2-3 days |
| Methaqualone | Up to 2 weeks |
| Morphine | 2-3 days |
| Phencyclidine | 8 days |
| Propoxyphene | 7-10 days |