There is no way to instantly sober up from drugs. Your liver and kidneys process substances at a fixed biological rate, and no home remedy, supplement, or trick can meaningfully speed that up. What you can do is keep yourself safe, manage uncomfortable symptoms, and give your body the best conditions to do its job. The specific timeline depends entirely on what you took, how much, and your individual metabolism.
Why You Can’t Rush the Process
Your liver breaks down drugs using a family of enzymes that work at a relatively constant pace. Just as the liver can only process roughly one standard alcoholic drink per hour, it handles other substances on its own fixed schedule. These enzymes can be influenced over days or weeks by certain medications or repeated exposure, but nothing you do in the moment will make them work significantly faster.
Caffeine, cold showers, and exercise are common suggestions, but none of them lower the concentration of a drug in your blood. The CDC has specifically noted that caffeine does not reduce the effects of intoxicating substances on the body. It may make you feel more alert, which can actually be dangerous: feeling less impaired while still being impaired can lead to risky decisions. The only real path to sober is time.
How Long Different Substances Last
The duration of a high varies widely depending on the substance. These are general ranges for the acute effects, not how long drugs remain detectable on a test.
- Cannabis (smoked): THC blood levels drop sharply about 3 to 4 hours after use, though edibles can extend effects to 6 hours or longer. Factors like body fat percentage, hydration, and how often you use all influence the timeline.
- Cocaine: The high from snorted cocaine typically lasts 15 to 30 minutes. Crack cocaine is even shorter, around 5 to 10 minutes, which is partly why redosing is so common and dangerous.
- Amphetamines and methamphetamine: Effects can last anywhere from 4 to 12 hours depending on the dose and method of use. Heavy or repeated dosing extends this considerably.
- Opioids (oral): Common prescription opioids like oxycodone and hydrocodone have durations of 3 to 6 hours. Methadone is a major outlier, with a clearance phase of 30 to 60 hours, meaning its effects linger far longer.
- MDMA: The primary effects last roughly 3 to 5 hours, with a comedown period that can stretch into the next day or two.
Keep in mind that “feeling sober” and “being sober” are not the same thing. Drugs and their byproducts can remain in your system well after the noticeable effects fade. Hair follicle tests can detect substance use up to three months later from scalp hair, and up to 12 months from body hair.
What Actually Helps While You Wait
You can’t speed up metabolism in any meaningful way, but you can reduce the misery of the experience and support your body’s recovery. These steps are backed by harm reduction organizations and apply to comedowns from most substances.
Stay hydrated. Dehydration doesn’t just make you feel worse with headaches, nausea, and fatigue. Research in pharmacology has shown that dehydration measurably slows the body’s ability to clear drugs. In studies on dehydrated subjects, total drug clearance dropped by 25 to 58 percent across a range of substances compared to normally hydrated controls. Water is good. Sports drinks or fruit juice can help restore electrolytes, especially if you’ve been sweating, dancing, or vomiting.
Eat something. Even if you have no appetite, your body needs fuel to run the metabolic processes that clear the drug. Fruit, vegetables, and carbohydrate-rich foods like pasta or bread are easy options. Eating also helps stabilize blood sugar, which can reduce shakiness and irritability.
Rest. Sleep is the single most productive thing you can do during a comedown. If you can’t sleep, even lying down in a quiet, dimly lit room helps. Your brain is recalibrating its chemistry, and stimulation from bright screens or loud environments can make anxiety and agitation worse.
Don’t redose. It’s tempting to take more of the substance to ease a comedown, but this only delays recovery and increases your risk of serious side effects or overdose. Each additional dose stacks on top of whatever your body hasn’t finished processing yet.
Get fresh air. A short walk or time outside can trigger the release of endorphins that improve mood and reduce stress. You don’t need to exercise hard. Gentle movement is enough.
Be around someone you trust. If you’re anxious or struggling, having a calm, sober person nearby makes a real difference. Let them know what you took and how you’re feeling so they can watch for warning signs you might not notice yourself.
The Stimulant Comedown
Coming down from amphetamines, methamphetamine, or cocaine deserves specific attention because it tends to be especially uncomfortable. In the 2 to 4 days after stimulant use, you can expect restless sleep, exhaustion, headaches, muscle aches, irritability, mood swings, anxiety, and depression. Some people experience paranoia, hallucinations, or confusion, particularly after higher doses.
People who binge stimulants for several days without sleeping often experience a “binge crash,” a period of extremely heavy sleeping once they finally stop. This is the body forcefully reclaiming the rest it was denied. While alarming to witness, it’s a predictable part of the cycle. The priority during this phase is making sure the person is in a safe position (on their side, not at risk of choking) and checking on them periodically.
Signs That Need Emergency Help
Most comedowns are deeply unpleasant but not life-threatening. Some situations, however, are medical emergencies. Call emergency services immediately if you or someone else shows any of these signs:
- Inability to wake up or extreme mental confusion
- Breathing that is very slow, irregular, or stops for 10 seconds or more between breaths
- Choking or gurgling sounds
- Bluish or pale skin, especially around the lips or fingertips
- Pulse that is very slow, erratic, or absent
- Seizures
- Vomiting while unconscious or semi-conscious
- Skin that feels clammy and cool to the touch
- Pinpoint (very small) pupils, which is a hallmark of opioid overdose
If opioids are involved and naloxone is available, administer it. Place an unconscious person in the recovery position (on their side) to prevent choking on vomit. Do not leave them alone. Good Samaritan laws in most U.S. states protect people who call 911 for a drug-related emergency from prosecution, even if illegal substances are present.
What Won’t Work
A few persistent myths deserve to be put to rest. Cold showers will shock you into temporary alertness but do nothing to your blood drug levels. They can also be dangerous if you’re disoriented, raising the risk of falls or hypothermia. Drinking coffee or energy drinks creates a false sense of sobriety without actually reducing impairment. Vigorous exercise while intoxicated puts unnecessary strain on a cardiovascular system that may already be under stress from the substance, particularly with stimulants. And “sweating it out” in a sauna is both ineffective and risky, as many drugs already impair your body’s ability to regulate temperature.
The bottom line is simple but inconvenient: your body has to do this work on its own timeline. The best thing you can do is hydrate, eat, rest, stay safe, and wait.