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Guide to Recreational and Therapeutic Psychedelic Substances
LSD (lysergic acid diethylamide) is an illicit hallucinogen. Support for Aboriginal and/or Torres Strait Islander people The Alcohol and Other Drugs Knowledge Centre works to reduce the harms of drug use in Aboriginal and/or Torres Strait Islander Communities. Tolerance to LSD develops quickly. The short-term effects of LSD may include: LSD can affect all your senses. You should also call an ambulance if LSD has caused a person to fall and injure their head. You can overdose on LSD if you take too much or have a strong batch. Therapeutic use of LSD If using LSD is impacting your life, or you're concerned about a loved one, contact any of the organisations below. NSPs provide clean needles or syringes to
people who inject drugs. People who take LSD don't usually need to seek treatment. This mix of drugs places your body under a lot of stress and may lead to stroke. They also have a page for Aboriginal people. They're sometimes called a 'needle exchange'. What if I use other drugs with LSD? Some LSD users may get hallucinogen persisting perception disorder (HPPD). This can cause constant hallucinogen experiences, which can be distressing. LSD can affect people differently based on: The effect of LSD can depend on how you feel before you take the drug. How can I stop using LSD? The types of needle and syringe programs vary. Where you are when you use LSD can also affect your
experience. Feeling stressed and anxious before using LSD may result in a 'bad trip'. It's a synthetic chemical, which means that it's made in a laboratory. If you take LSD for 3 or 4 days in a row the drug might stop causing the desired effects. What can go wrong with LSD? This is because using LSD regularly does not result in issues with dependence and withdrawal. LSD and mental health Support for injecting behaviour If you inject LSD or other drugs, you can reduce your risk of blood-borne disease by attending a needle and syringe program (NSP). A registered nurse is available to speak with you 24 hours a day, 7 days a week. Can I become dependent on
LSD? Ambulance officers will not involve the police unless they feel threatened or there has been a crime. Can LSD cause long-term problems? Others are vending machines or chutes. It's very strong, so is usually diluted with other things. Visit the Drug Help website or call the Alcohol Drug Information Service (ADIS) on 1800 250 015. This includes medicines purchased over the counter or prescribed by your doctor. Visit the Alcohol and Drug Foundation website. LSD use does not usually cause physical dependence. Being in a noisy, crowded place may result in a bad trip. Narcotics Anonymous Australia on 1300 652 820. You can also call the healthdirect helpline on 1800 022 222 (known as NURSE-ON-CALL in Victoria). Try to
reassure and comfort them. Tolerance is when you need more of the drug to achieve the same effects. Signs of an overdose are: If the person has been mixing LSD with other drugs, tell the paramedic exactly what they've taken. If you can't wake a person who has taken LSD, call triple zero (000) immediately and ask for an ambulance. LSD is also known as: LSD is sometimes sold as: LSD can also be: What are the effects of taking LSD? If someone you know is having a bad trip, you can help lower their anxiety. These effects can last between 8 to 12 hours, depending on how much you take. The effects of taking LSD with other drugs can
be unpredictable. You may: The effects of LSD usually begin 20 to 90 minutes after taking it. Your Room provides information on some of the most commonly used drugs in Australia. HPPD can be irreversible. Health Translations — watch a video in your language on getting help when alcohol or drug use is a problem. It's possible to have flashbacks weeks, months or years after taking LSD. Flashbacks are when you feel the effects of the drug again. See 'What are the effects of taking drugs?' on the Department of Health and Aged Care website for more information. Pure LSD is an odourless white substance. Mixing LSD with stimulants (such as cocaine (coke), speed or ice) can increase your heart
rate. However, if you want advice on how to stop using LSD, you can speak with your doctor. Some are staffed and provide advice and referral. This is usually a visual hallucination. Find out more about how drugs impact your health. However, this is not common. Regular LSD users may experience a need or craving if they stop using the drug. Last reviewed: February 2025
