Drug Retention Times

Published: Mar 18, 2024

Different types of drugs have varying detection windows. Many factors can impact the period of detection time, such as usage frequency, individual metabolism, health status and more. The information provided is a guideline and does not indicate that a drug will be detected for this long in all cases.

Urine retention time

FULL DRUG NAME	CODE	RETENTION
Amphetamines	AMP	2-4 days
Barbiturate	BAR	1-2 days
Benzodiazepine	BZO	3-30 days
Buprenorphine	BUP	5-8 days if you are healthy or 7-12 days if you have liver disease
Cannabis	THC	Up to 3 days for single use Up to 7 days for moderate use Up to 15 days for heavy use Up to 30 – 36 days for chronic use
Clonazepam	CLO	21-30 days
Cocaine	COC	2-4 days
Cotinine	COT	3-5 days
Ethyl Glucuronide	ETG	1-3 days
Fentanyl	FYL	2-3 days
Gabapentin	GAB	2-3 days
Hydromorphone	HMO	2-4 days
Ketamine	KET	3-5 days
Lysergic Acid Diethylamide	LSD	2-5 days
6-Monoacetylmorphine	6-MAM	1-3 days
Methylenedioxymethamphetamine	MDMA	1-2 days
Methamphetamine	MET/MAMP	2–4 days
Morphine	MOP	1-2 days
Methylphenidate	MPD	1-3 days
Methaqualone	MQL	12-14 days
Methadone	MTD	3-13 days
Methcathinone	MCAT	7-30 days
Mephedrone	MEP	1-2 days
Opiates	OPI	2-5 days
Oxycodone	OXY	2-4 days
Phencyclidine	PCP	1.5-10 days
Pregabalin	PRE/PGB	5-6 days
Propoxyphene	PPX	1-2 days
Synthetic Cannabis	K2	1-3 days
Tramadol	TRA/TML	6 hours – 2 days
Tricyclic Antidepressants	TCA	2 – 10 days
2-Ethylidene-1, 5-Dimethyl-3, 3-Diphenylpyrrolidine	EDDP	2 – 5 days

Oral fluid retention time

FULL DRUG NAME	CODE	RETENTION
Amphetamines	AMP	72 hours
Barbiturates	BAR	52 hours
Benzodiazepines	BZO	72 hours
Buprenorphine	BUP	72 hours
Cocaine	COC	24 hours
Cotinine	COT	48 hours
Fentanyl	FYL	48 hours
Heroine	HRN	72 hours
Ketamine	KET	48 hours
Cannabis	THC	24 hours
Methylenedioxymethamphetamine	MDMA	21 hours
Methamphetamine	MET/MAMP	72 hours
Morphine	MOP	72 hours
Methadone	MTD	48 hours
Opiates	OPI	21 hours
Oxycodone	OXY	48 hours
Phencyclidine	PCP	72 hours
Propoxyphene	PPX	48 hours
Synthetic Cannabis	K2	48 hours
Tramadol	TRA/TML	12 hours