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About drugs

Polydrug use

Using more than one drug per session is often called ‘poly drug use’ or ‘mixing drugs’. This involves using more than one drug at a time, including the use of alcohol and prescription. Anything you consume can have some form of interaction; however, some drug combinations may be more risky than others. Learn about interactions on our page drug combinations and polydrug use

Drugs and mental health 

Each person's mental health is unique to them. See how drugs can impact on some peoples mental health on our page Drugs and mental health

Drugs and pregnancy 

Here we have stuck to the facts to give you a simple guide to this complicated topic.

Drugs and the law 

Drugs are controlled by international and local law. Learn about these controls and policies on our page: Drugs and the law

How long do drugs stay in your system? 

How long they stay in your urine, your blood and your hair. We have provided a rough guide on how long drugs could stay in your system but this changes based on each situation. See our page How long do drugs stay in your system?



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The HSE and Union of Students in Ireland (USI) ask students to think about drug safety measures when using club drugs
Harm reduction messages from the #SaferStudentNights campaign.
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