Author: Jaclyn Ahearn, LICSW

Stimulants are a class of psychoactive drugs that increase mental and physical functioning, causing increased energy and attention, enhanced mood and feelings of well-being. Common stimulant drugs include prescription stimulants, such as Adderall and Concerta, and illicit drugs such as cocaine, methamphetamine and ecstasy (MDMA).

Although certain stimulants have legitimate medical uses, many people misuse these substances for their desirable effects. Stimulant misuse can lead to severe physical and psychological consequences, including addiction, also known as a stimulant use disorder.¹

Types of Stimulants

Stimulants can be legally prescribed by a qualified medical provider or they can be produced illicitly and sold to users illegally. Stimulants may be used by swallowing them in pill or capsule form, smoked, snorted or injected. 

Prescription Stimulants (Amphetamines)

Stimulants may be prescribed for the treatment of conditions such as attention-deficit/ hyperactivity disorder (ADHD) or narcolepsy. These medications are safe when taken exactly as directed by your doctor. However, many people misuse prescription stimulants like Adderall to increase academic performance, stay awake, enhance the high of another substance or for its euphoric effects.² For these reasons, prescription stimulants are commonly abused on college campuses.

The following list of stimulants includes those prescribed as medications for diagnoses such as ADHD and narcolepsy:³

• Adderall
• Concerta
• Ritalin
• Vyvanse
• Dexedrine
• Vyvanse
• Focalin

Cocaine

Cocaine is classified as a Schedule II Controlled Substance, which means that it can be used medically, but it has a high potential for misuse, diversion and addiction. It is derived from the coca leaves of the Erythroxylon coca plant.

Some street names for cocaine include:⁴

• Snow
• Coke
• C
• Powder
• Blow
• Candy
• Freeze
• Sugar

The term crack refers to the free-base version of cocaine that is often smoked with a pipe. Although cocaine and crack cocaine appear different physically, the substances elicit similar effects. Cocaine is often cut with fillers, such as talcum powder, or drugs, such as fentanyl, which can increase the risk of overdose, especially if individuals are unaware that their cocaine contains this potent opioid.⁴

Methamphetamine

The use of methamphetamines is on the rise worldwide. According to the 2024 National Survey on Drug Use and Health (NSDUH), 2.5 million people aged 12 and older used methamphetamine in the past 12 months.  

Methamphetamine use is associated with the same kinds of effects that can be observed when taking other kinds of stimulant drugs such as:³

• Euphoria
• Alertness
• Focus
• Increased energy level
• Increased wakefulness
• Reduced appetite

Ongoing, or chronic use of stimulant drugs like methamphetamine may also be associated with harmful psychological consequences, such as:³

• Paranoia or delusional thinking
• Psychosis
• Panic attacks
• Hostility towards others, and even violence in some instances

Ecstasy (MDMA)

Ecstasy, also known as Molly or MDMA, is known as a psychostimulant that produces both hallucinogenic and stimulatory effects, altering mood and perception. It’s commonly used at raves, music festivals, and nightclubs, although people may use it in a variety of other settings. ⁶

Although ecstasy produces several desirable effects, such as euphoria, emotional warmth and increased energy, it also causes many negative side effects, such as:⁶

• Sweating
• Chills
• Blurred vision
• Involuntary teeth clenching
• Muscle cramps
• Nausea
• Dangerously high body temperature
• Liver, kidney or heart failure

Some research indicates that MDMA may be addictive, but to a lesser degree than other stimulants like cocaine. Although ecstasy is currently a Schedule I drug with no recognized medical use, some researchers are interested in MDMA’s benefits when used during psychotherapy for mental health conditions, such as post-traumatic stress disorder (PTSD).

In fact, the Food and Drug Administration has designated MDMA-assisted psychotherapy for PTSD as a Breakthrough Therapy, which means review of its effectiveness will be expedited.⁶

Khat

Khat is an evergreen shrub native to East Africa and the Arabian Peninsula. When people chew khat, drink it as a tea or smoke it, they experience stimulant-like effects due to the presence of cathinone and cathine.⁷

Cathine is a Schedule IV controlled substance and cathinone is a Schedule I stimulant, as designated by the Drug Enforcement Administration (DEA)—this means khat is illegal in the United States and has no accepted medical use.⁷

Khat use may lead to:⁷

• Mania
• Delusions
• Paranoia
• Nightmares
• Hallucinations
• Hyperactivity
• Violent or erratic behaviors
• Suicidality
• Staining of the teeth
• Insomnia

Synthetic Cathinones

Synthetic cathinones, commonly referred to as bath salts, are synthetic stimulant drugs chemically related to cathinone, which is found in khat. Since bath salts are human-made, they may be much stronger than the naturally occurring cathinone in khat.⁸

Synthetic cathinones typically resemble brown or white crystal-like powders and are sold in packages labeled “not for human consumption.” They’re often labeled as:⁸

• Bath salts
• Phone screen cleaner
• Jewelry cleaner
• Plant food

Bath salts are chemically similar to other stimulant drugs, such as cocaine, MDMA, and amphetamines, although they may be up to 10 times stronger than MDMA or Molly.⁸
Some common side effects of synthetic cathinones include:⁸

• Hallucinations
• Paranoia
• Increased sex drive
• Panic attacks
• Violent behavior
• Extreme agitation
• Kidney failure
• Dehydration
• Chest pain

Bath salts are extremely addictive, and people who use this class of drug report intense, compulsive urges to use the drug repeatedly.⁸

Stimulant Use Disorder

According to the Diagnostic and Statistical Manual, Fifth Edition (DSM-5), a stimulant use disorder, or stimulant addiction, can be defined by the observed use of a stimulant over the course of a year and is associated with noted distress and a decrease in function.¹

Common signs of a stimulant addiction may include:¹

• Using higher or more frequent amounts of stimulants than intended
• Failing to reduce or stop use despite efforts to do so
• Experiencing strong cravings to use stimulants
• Continuing stimulant use despite use causing occupational, educational or interpersonal problems
• Neglecting important recreational or social activities due to stimulant use
• Continuing stimulant use despite psychological or physical conditions caused or worsened by use
• Needing higher doses of stimulants to feel the desired effects (i.e., tolerance)
• Experiencing withdrawal symptoms when you abruptly stop using stimulants (i.e., physiological dependence)

If you are addicted to a stimulant drug, you are likely dependent on it as well—this means that your body has adapted to the presence of the stimulant, and without it, you will experience withdrawal symptoms.

Stimulant withdrawal symptoms may include:¹

• Insomnia or hypersomnia
• Increased appetite
• Nightmares
• Fatigue
• Restlessness and rapid, purposeless movements
• Slowed thinking or movements
• Anhedonia (inability to experience pleasure)

Stimulant withdrawal can be very distressing and cause significant impairment, which is why you should seek medical treatment from a medical detox program or as part of a rehab program.

Get Help Today

The very nature of a stimulant use disorder can make it difficult to overcome on your own, but fortunately, there are stimulant addiction treatment programs available to help. Whether you choose an inpatient treatment facility or an outpatient program, your treatment team will help you get on the road to recovery.

Most programs utilize a combination of therapies and interventions to provide you with a comprehensive treatment plan that addresses your unique needs. Examples of therapies used to treat stimulant addiction include:⁵

• Cognitive-behavioral therapy (CBT)
• Motivational interviewing
• Transcranial magnetic stimulation (rTMS)
• Behavioral reinforcement-based therapy techniques

If you or someone you care about is experiencing a stimulant use disorder, you may be feeling overwhelmed and unsure of the next steps to take.

Call 800-934-1582(Sponsored) and get help today.

Resources

1. American Psychiatric Association. 2013. Diagnostic and statistical manual of mental disorders (5th ed.). https://doi.org/10.1176/appi.books.9780890425596
2. Sepúlveda, D. R., Thomas, L. M., McCabe, S. E., Cranford, J. A., Boyd, C. J., & Teter, C. J. (2011). Misuse of prescribed stimulant medication for ADHD and associated patterns of substance use: preliminary analysis among college students. Journal of Pharmacy Practice, 24(6), 551-560.
3. Substance Abuse and Mental Health Services Administration. (2018). Treatment of Stimulant Use Disorders.
4. National Institute on Drug Abuse. (2024). What is Cocaine?
5. AshaRani, P.V., Hombali, A., Seow, E., Ong, W. J., Tan, J. H., & Subramaniam, M. (2020). Non-pharmacological interventions for methamphetamine use disorder: a systematic review. Drug and Alcohol Dependence, 212(1), 1-19.
6. National Institute on Drug Abuse. (2024). MDMA (Ecstasy/Molly) DrugFacts.
7. Drug Enforcement Administration. (2020). Drug Fact Sheet: Khat.
8. National Institute on Drug Abuse. (2020). Synthetic Cathinones (“Bath Salts”) DrugFacts.

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