DoseUses
I

Synthetic stimulants related to cathinone · Schedule I

Synthetic cathinones Bath salts, Flakka (alpha-PVP), Mephedrone

Synthetic cathinones are lab-made stimulants related to khat, sold as 'bath salts', 'flakka', or disguised as molly or other drugs. Most are Schedule I. They can cause extreme agitation, paranoia, dangerous overheating, kidney failure, and death.

No US medical route

Draft, awaiting medical review. Updated October 5, 2026.

Onset
15 to 45 minutes
Duration
2 to 6 hours (varies by chemical)
Naloxone reverses it?
No
Dependence risk
High

Synthetic cathinones at a glance: schedule, half-life, and class

Examples
Mephedrone, MDPV, methylone, alpha-PVP (flakka), N-ethylpentylone, eutylone
Drug class
Synthetic stimulants; cathinone derivatives
US legal status
Many named compounds Schedule I; others treated as analogues
Sold as
Bath salts, plant food, research chemicals, or as fake MDMA (molly)
Forms
White or brown crystals or powder; pills
Onset
15 to 45 minutes
Federal law
Synthetic Drug Abuse Prevention Act of 2012 and later DEA orders

What is synthetic cathinones?

Synthetic cathinones were developed to mimic amphetamine, cocaine, or MDMA while dodging drug laws. Packages were labelled 'not for human consumption' and sold in shops and online.[1]

As individual chemicals were banned, makers introduced new ones. Testing of drugs sold as molly often finds cathinones such as eutylone instead of MDMA.[1]

Synthetic cathinones effects and how long they last

Effects resemble other stimulants: euphoria, energy, talkativeness, and increased sex drive, with a fast heartbeat, high blood pressure, and jaw clenching. Many users redose repeatedly because effects are short.[1]

Strength varies widely between batches and compounds, so the same amount can have very different effects.

Synthetic cathinones side effects and risks

Excited delirium: extreme agitation, paranoia, hallucinations, and violent behavior, with dangerous overheating.[1]

Body damage: muscle breakdown (rhabdomyolysis), kidney failure, heart attack, stroke, and seizures.[1]

Fentanyl contamination: like other street stimulants, they may contain opioids.

Warning: Overheating can kill. Someone who is extremely agitated, very hot, or confused needs emergency care. Do not restrain them face-down.

Synthetic cathinones interactions: what is dangerous to mix with it

Combined withWhat happensGuidance
Other stimulantsHeart strain, overheating, seizuresHigh risk
MAO inhibitors and serotonergic antidepressantsSerotonin syndrome or blood pressure crisisDangerous
AlcoholMasked intoxication; dehydrationHigh risk
Opioids (contamination)Overdose when the stimulant wears offDangerous

This is not a full list. Combining substances raises the risk of harm, especially when the contents of street drugs are unknown.

Synthetic cathinones overdose: signs and what to do

Overdose causes chest pain, extreme agitation, very high body temperature, seizures, muscle breakdown, kidney failure, and cardiac arrest.[1]

If someone may be overdosing

  • Call 911 for chest pain, a seizure, trouble breathing, signs of a stroke (face drooping, weakness on one side, slurred speech), a very high body temperature, or if the person collapses.
  • Move them somewhere cool and calm, loosen tight clothing, and cool the skin with water. Do not try to hold them down.
  • If they become unresponsive or their breathing slows, give naloxone. Street stimulants are often contaminated with fentanyl.
  • For advice when the person is awake and stable, call Poison Help at 1-800-222-1222.

Are synthetic cathinones addictive?

Yes. They can cause strong cravings and compulsive use. Withdrawal is mainly psychological.[1]

  1. Days 1 to 3CrashExhaustion, depression, anxiety, and intense cravings.
  2. Weeks 1 to 2WithdrawalLow mood, poor sleep, and paranoia may persist.
  3. Weeks to monthsRecoveryCravings ease with support.

There is no approved medicine for stimulant use disorder; contingency management and cognitive behavioral therapy have the best evidence.

Where can someone get help with synthetic cathinones use?

  • SAMHSA National Helpline: 1-800-662-4357. Free, confidential, 24 hours a day, in English and Spanish. It gives referrals to local treatment and support.[4]
  • FindTreatment.gov: a federal locator for state-licensed treatment programs, searchable by location, payment, and type of care.[5]
  • 988 Suicide and Crisis Lifeline: call or text 988 for a mental health or substance use crisis.
  • Your own clinician: a primary care doctor can screen, treat, and refer, and can discuss medicines that support recovery where they exist.

Common questions about synthetic cathinones

What are bath salts?

A street name for synthetic cathinones, stimulants unrelated to real bathing products.

What is flakka?

Alpha-PVP, a potent synthetic cathinone linked to severe agitation and overheating.

Can molly contain bath salts?

Yes. Drug checking often finds cathinones in pills and powders sold as MDMA.

Do bath salts make people violent?

They can cause paranoia, hallucinations, and agitation that lead to violent or dangerous behavior.

Are bath salts legal?

No. Most are Schedule I, and others are treated as analogues.

Sources

  1. Synthetic Cathinones ("Bath Salts"). National Institute on Drug Abuse.
  2. Controlled Substance Schedules. DEA Diversion Control Division.
  3. 21 U.S.C. 844, Penalties for simple possession. Legal Information Institute, Cornell Law School.
  4. National Helpline. Substance Abuse and Mental Health Services Administration.
  5. FindTreatment.gov. Substance Abuse and Mental Health Services Administration.
  6. International drug control conventions. United Nations Office on Drugs and Crime.
Read the Synthetic cathinones guideKey takeaways, quick facts, and answers to common questions.

Contact DoseUses

Send a correction, a question about the site, or feedback. DoseUses does not sell, supply, or ship medicines, and cannot give personal medical advice.

In an emergency in the US, call 911. Poison Help: 1-800-222-1222.