How long does heroin stay in your system?

If you wish to know how long does heroin stay in your system, you need to go through different information sources. The drug, its nature, its effects and how it is tested for needs to be known in order to gain complete information on how long heroin stays in the system. Heroin is known to be a drug that is addictive to a high extent and is illegal. It comes in the form of black tar substances or in the form of white or brown powder. The powder is either sniffed or snorted. It can also be smoked or injected into a muscle or a vein. It is also mixed with other drugs as well as mixed with powdered milk or sugar. It is also cut with poison like strychnine. Many names exist for heroine like black tar, dope, brown sugar and others.

How long does heroin stay in your system


Those who intake heroin are known to experience a pleasurable sensation that is called a rush. The intensity of the feeling is dependent on the amount of drug taken as well as how rapidly the drug enters the brain. When the drug is injected directly into the vein, the rush will occur within mere seconds. If you sniff it or smoke it, the rush will come on after duration of ten minutes. After the initial rush, there is a warm flush felt on the skin and the pupils contract, the nose runs, eye become watery, a heavy feeling comes on the arms and legs. It can cause effects like:

  • Vomiting
  • Nausea
  • Severe itching tendency
  • After effects are drowsy or relaxed muscles
  • A trance like state is experienced that can last for four to six hours

The drug is often used in conjunction with other drugs like alcohol or cocaine. Many snort alternate lines of the two drugs, cocaine and heroin which are called crisscrossing.

Repeated use

When one repeats the intake of the drug, one gets addicted to it and to have the similar rush feeling, they need to take up higher doses. The body becomes dependent on the drug to function and within few hours of stoppage of the drug the body craves for it. There is a psychological and physical dependence that is developed within a time span of few weeks if the drug gets used on a daily basis. The drug brings on the possibility of:

  • Kidney or liver diseases
  • Lung problems like pneumonia, tuberculosis.
  • One may also become vulnerable to other diseases like hepatitis or HIV through sharing of infected injections.

Detection possibilities

For knowing how long does heroin stay in your system, you need to know that the drug can be detected in the urine for a time period of 24 hours. If a blood test is conducted, it can be detected up to 3 days after the last use of the drug. There are many symptoms that the person reveals who is dependent on such a drug. These aid one to know whether one is addicted to heroin or not.