Sleeping Pill Overdose

Can You Overdose on Sleeping Pills?

Yes, you can overdose on sleeping pills. Although sleeping pills are designed to aid sleep, taking too much or combining certain sleep medicines with alcohol or opioids can cause serious harm. The risks depend on the product involved.^[1][2][3][4]

In the U.S., call 911 if someone collapses, has a seizure, has trouble breathing, or cannot be awakened. For a possible overdose without those emergency signs, call Poison Help at 1-800-222-1222 right away. Do not wait for symptoms. A poison expert can assess the exposure and help you get the right care.^[5][3]

Some prescription sleeping pills, including benzodiazepines and Z-drugs, slow brain activity. Other sleep products work differently, so they do not all share the same mechanism or overdose risks.^[6][1][2]

An overdose of a benzodiazepine such as diazepam can lead to deep sedation. In severe cases, breathing can slow dangerously or stop. Combining a benzodiazepine with alcohol or opioids can increase the risk of life-threatening breathing problems.^[2][7]

Over-the-counter sleep aids can also cause poisoning when too much is taken. Check the active ingredients rather than assuming a nonprescription product is safer. Use medicines only as directed, and get poison-center or emergency guidance after a possible overdose.^[5][1][3]

How Sleeping Pill Types and Risks Differ

Sleep medicines belong to different classes. Benzodiazepines slow brain activity through gamma-aminobutyric acid (GABA) receptors. Ambien (zolpidem), Lunesta (eszopiclone), and Sonata (zaleplon) are Z-drugs that also slow brain activity. Rozerem (ramelteon) acts at melatonin receptors, not by enhancing GABA. Suvorexant belongs to another class called orexin receptor antagonists.^[6][1][2]

Some OTC sleep aids contain antihistamines. Diphenhydramine is an antihistamine that blocks histamine, while melatonin is a hormone involved in the timing of sleep and is sold as a dietary supplement in the U.S. These products should not be treated as having identical overdose risks.^[1][3][9]

Regular benzodiazepine use can cause physical dependence, meaning the body adapts and withdrawal can occur if the medicine is stopped suddenly or reduced too quickly. This differs from addiction to sleeping pills, which involves compulsive use despite harm. One accidental overdose does not, by itself, establish addiction.^[2][8]

Dangerous Drug Interactions with Sleeping Pills

Tell your healthcare professional about every prescription medicine, OTC product, supplement, and other substance you use. Ask about interactions with your exact sleep product rather than assuming all medicines or herbal products affect it the same way.^[1][2][9]

• Alcohol: Do not drink alcohol before or while taking a Z-drug such as Ambien, Lunesta, or Sonata. Combining alcohol with a benzodiazepine can cause severe breathing problems, overdose, or death.^[6][2]
• Opioids: Combining a benzodiazepine sleep medicine with an opioid can cause severe respiratory depression, meaning breathing becomes dangerously slow or ineffective. This combination can be fatal.^[2]
• Other sleep medicines: FDA advises against taking a Z-drug with another sleep medicine, including an OTC sleep aid. Do not add a second sleep product on your own.^[6]
• Antihistamines and combination products: Check OTC Drug Facts labels for diphenhydramine. It is also sold in products combined with pain relievers, fever reducers, or decongestants. Include these products when reviewing your medicines with a pharmacist or prescriber.^[1][3]

What Happens If You Overdose on Sleeping Pills?

What happens when you overdose on sleeping pills depends on the product, the amount taken, other substances involved, and your condition. Clinicians assess the actual exposure rather than treating all sleep aids as one drug.^[5][2][4][7]

For example, an overdose of the benzodiazepine diazepam can cause extreme drowsiness, confusion, loss of coordination, and slow or stopped breathing. Deep sedation can leave a person unable to respond normally.^[7]

Combining a benzodiazepine with opioids or alcohol can intensify its brain-slowing effects and cause severe breathing problems or death.^[2]

OTC products can cause serious poisoning, not just extra sleepiness. Taking too much diphenhydramine can cause hallucinations, seizures, serious heart problems, coma, or death.^[3]

Melatonin has a different safety profile, but an excess dose should not be dismissed as harmless. Poison-center reports involving children and teenagers include hospitalizations and serious outcomes. Ordinary melatonin side effects are not a reliable checklist for assessing an overdose.^[9]

Medical treatment depends on the drug and the person’s symptoms. Care may include breathing support, heart monitoring, and medicines to treat specific problems. An antidote is an option only when one exists for the substance involved.^[4]

Remember, prevention is the best approach to handling a potential overdose situation. Always use medications as directed by a healthcare provider, avoid mixing medicines unless directed by a healthcare provider, and seek help if you or a loved one is struggling with substance misuse.^[6][2]

Sleeping Pills Overdose Symptoms and Warning Signs

Sleeping pill overdose symptoms depend on the product involved. These are possible warning signs, not a checklist that must be complete before getting help. Do not wait for symptoms after a possible poisoning.^[5][4]

Possible signs and product-specific examples include:

• Extreme lethargy or drowsiness: A benzodiazepine overdose, such as diazepam overdose, may leave someone very sleepy or unable to stay alert.^[7]
• Breathing trouble: Slow or labored breathing is a serious warning sign. In a severe diazepam overdose, breathing may stop entirely.^[7]
• Clumsiness or loss of coordination: An individual might stumble, have difficulty walking, or be unable to perform tasks that require coordination. Poor coordination can occur with diazepam overdose.^[7]
• Confusion: A person with diazepam overdose may be confused or less alert.^[7]
• Hallucinations, seizures, or collapse: These can occur after too much diphenhydramine and need immediate medical help.^[3]
• Unresponsiveness or coma: Being unable to awaken someone after a possible overdose is an emergency sign.^[3]

There is no universal pill count or dose multiplier that can tell you an exposure is safe. The ingredient, strength, amount, time taken, the person’s age and health, and other medicines or substances help experts assess the risk. Do not use a lack of symptoms as a reason to wait.^[5][2][4][7]

Call 911 for collapse, a seizure, trouble breathing, or inability to awaken. Otherwise, call Poison Help at 1-800-222-1222 right away after a possible overdose, even if the person feels well.^[5][3]

Treatment for Sleeping Pill Overdose

Treatment depends on the specific product, amount taken, symptoms, and the person’s health. Do not give activated charcoal at home. Do not induce vomiting unless poison control or a clinician directs it.^[5][4][7]

If an opioid overdose is possible, give naloxone if available according to its product directions and call 911. Naloxone reverses opioid effects, not sleeping pills in general. Its effects can wear off, so stay with the person until emergency help arrives, even if they wake up.^[10]

Have these details ready if you can, but do not delay calling to collect them:⁠^[5]

• The product container, active ingredients, and strength.^[5][7]
• How much may have been taken and when, if known.^[7]
• The person’s age, weight, known health conditions, symptoms, and any first aid already given.^[5]
• Other medicines or substances involved, including alcohol or opioids. Tell the expert whether the medicine was prescribed to the person.^[2][7]

Hospital care may include:⁠^[4][7]

• Breathing support: Clinicians assess the airway and breathing. Oxygen or assisted breathing may be needed.^[4][7]
• Monitoring: The team checks vital signs and may use an electrocardiogram (ECG) to assess the heart’s electrical activity.^[4][7]
• Supportive care: This can include intravenous fluids and medicines selected for the symptoms and substance involved.^[4][7]
• Substance-specific treatment: An antidote may be used when one exists and is appropriate. There is no routine reversal medicine for every sleeping pill overdose.^[4]

Regardless of the specific treatment, the goal is to stabilize the patient, manage symptoms, and prevent further harm.^[4]

Recovery from an overdose of sleeping pills can take time and may require hospitalization. There is no single recovery timeline. The medical team bases treatment and discharge decisions on the drug involved and the person’s condition.^[4]

During a suspected overdose, follow emergency or poison-center instructions about further doses. After the emergency is treated, ask the prescriber to review medication errors, interactions, and ongoing sleep problems. If you regularly take a benzodiazepine, later changes should follow an individualized clinician-led plan. Abruptly stopping or reducing it too quickly can cause dangerous withdrawal, including seizures.^[5][1][2]

Can You Overdose on Melatonin?

Yes, you can take too much melatonin. Poison-center reports involving children and teenagers include hospitalizations and serious outcomes, although most people in that pediatric surveillance dataset had no symptoms. These findings do not establish a safe amount to take.^[9]

Melatonin is a hormone naturally produced by the body that helps regulate the sleep-wake cycle. It is also available as a dietary supplement and is commonly used as a sleep aid. Some supplements, including gummy products, contain amounts that do not match their labels.^[9]

Reported melatonin side effects include:⁠^[1][9]

• Headache or dizziness: These were reported in short-term studies.^[9]
• Drowsiness: Melatonin can cause daytime sleepiness.^[1][9]
• Nausea or stomach upset: These are possible side effects, not proof of an overdose.^[1][9]
• Low or high blood pressure: Melatonin can affect the body’s control of blood pressure.^[1]

These usual side effects are not a diagnostic checklist for poisoning. For a possible excess dose or a child’s unplanned ingestion without emergency signs, call Poison Help at 1-800-222-1222 right away, even if there are no symptoms. Collapse, seizures, trouble breathing, or inability to awaken require 911⁠.^[5][3][9]

Before starting melatonin, discuss other medicines and health conditions with your healthcare provider. Ask a child’s clinician before giving melatonin, and keep supplements out of children’s reach and sight.^[9]

When Sleeping Pills Are Taken for Self-Harm

If pills were taken to cause self-harm, call 911 now. Do not wait for symptoms before getting medical help.^[5][11]

If you are having suicidal thoughts or are in emotional distress, call or text 988 for support from a trained crisis counselor. After pills have been taken, crisis counseling does not replace urgent medical assessment.^[5][11]

Side Effects of Sleeping Pills

Even before an overdose occurs, misusing sleeping pills can lead to serious side effects. These side effects can impact an individual’s health and quality of life long before an overdose arises.^[6][2]

Benzodiazepines and Z-drugs slow brain activity, but other sleep products work through different mechanisms. Side effects can occur at prescribed doses, not only with misuse or overdose. Depending on the medicine, they may include dizziness, fatigue, confusion, or anxiety.^[6][1][2]

Z-drugs can leave you drowsy the next day. Insomnia medicines can impair driving and other activities requiring alertness the following morning.^[6]

A serious but rare risk of Z-drugs such as Ambien, Lunesta, and Sonata is complex sleep behavior, such as sleepwalking, sleep cooking, or sleep driving while not fully awake. These behaviors can cause serious injury or death, may occur after the first dose or at low doses, and are not proof of an overdose. If this happens, stop that Z-drug and contact your prescriber immediately.^[6]

The Importance of Safe Sleep Aid Use

For ongoing insomnia, ask your clinician about cognitive behavioral therapy for insomnia (CBT-I). This structured treatment addresses thoughts and habits that interfere with sleep. NHLBI usually recommends it as the first treatment for long-term insomnia.^[1]

If sleeping pill use feels out of control or continues despite harm, ask for a substance-use assessment. Addiction is treatable, and physical dependence alone does not establish addiction.^[2][8] For an overview of counseling options when addiction is a concern, read our addiction therapy guide.