routing number 322281581 123 south marengo avenue pasadena ca 91101 0000 phone number 626 535 1000 aba 322281581 address lookup wescom credit union routing number in pasadena ca browse wescom credit union branch locations
Short-Term Effects of Heroin. Often injected, the immediate effects of heroin are to modulate pain perception. As a street drug, dosing is impossible to fully control, and the side effects of decreased heart rate and breathing pose immense risk to users.
Users who do not inject the drug may not experience the initial rush, but other effects are the same. Researchers are also investigating the long-term effects of opioid addiction on the brain. One result is tolerance, in which more of the drug is needed to achieve the same intensity of effect.nother result is dependence, characterized by the need to continue use of the drug to avoid withdrawal symptoms. Studies have shown some deterioration of the brainâs white matter due to heroin use, which may affect decision-making abilities, the ability to regulate behavior, and responses to stressful situations.