Lunesta

Primary Uses

Lunesta is primarily prescribed for the treatment of insomnia. Insomnia is a sleep disorder characterized by difficulty falling asleep, waking up frequently during the night, or waking up too early and being unable to return to sleep.

How It Helps

This medication works by slowing activity in the brain to allow for sleep. It is used to address two main types of sleep challenges:

• Sleep Onset: Helping individuals who have trouble falling asleep at the beginning of the night.
• Sleep Maintenance: Helping individuals who wake up during the night or too early in the morning and have trouble staying asleep.

By improving these areas, the medication aims to increase the total amount of sleep time and reduce the number of times a person wakes up during the night.

Treatment Considerations

Healthcare providers typically prescribe this medication for adults who find that their sleep problems are interfering with their daily functioning. While it can be used for short-term relief of sleep issues, it is also approved for longer-term use under the close supervision of a medical professional. It is generally recommended to take the medication immediately before going to bed when you are able to stay in bed for a full night's sleep.

Mechanism of Action

Lunesta (eszopiclone) belongs to a class of drugs called sedative-hypnotics. It works by slowing activity in the brain to help induce and maintain sleep. While the precise way the drug works is not fully understood, it is believed to interact with specific receptors in the central nervous system.

The medication targets GABA-A receptors, which are part of a system that regulates brain activity. It enhances the effects of gamma-aminobutyric acid (GABA), a natural chemical messenger that inhibits or calms nerve signals. By strengthening these calming signals, Lunesta helps to:

• Decrease the time it takes to fall asleep.
• Reduce the number of times you wake up during the night.
• Increase the total amount of time spent sleeping.

Because it targets these specific pathways, Lunesta helps quiet the brain's activity, making it easier for the body to transition into a sleep state.

Common Side Effects

Many people using Lunesta experience mild side effects. These may include:

• An unpleasant, bitter, or metallic taste in the mouth
• Drowsiness or grogginess the next day
• Headache
• Dizziness or lightheadedness
• Dry mouth
• Symptoms of a common cold, such as a sore throat or sneezing
• Rash

Serious Side Effects

Contact a healthcare provider immediately if you experience any of the following serious side effects:

• Complex sleep behaviors: Getting out of bed while not fully awake and performing activities you do not remember, such as sleep-walking, sleep-driving, preparing food, or making phone calls.
• Mood or mental changes: New or worsening depression, anxiety, aggression, agitation, hallucinations, or thoughts of hurting yourself.
• Memory loss: Difficulty remembering events that occurred after taking the medication.
• Severe allergic reactions: Swelling of the tongue or throat, trouble breathing, nausea, or vomiting.
• Confusion: Feeling very disoriented or acting in a way that is not normal for you.

If you stop taking Lunesta suddenly after using it for a long time, you may experience withdrawal symptoms such as nausea, lightheadedness, or stomach cramps.

Complex Sleep Behaviors

Boxed Warning: This medication can cause complex sleep behaviors, which involve engaging in activities while not fully awake. Examples include sleep-walking, sleep-driving, preparing and eating food, or making phone calls. These behaviors can result in serious injuries or death. The medication must be stopped immediately if any complex sleep behavior occurs.

Next-Day Impairment

There is a significant risk of next-day impairment, which can affect driving and other activities requiring full mental alertness. This risk is highest with the 3 mg dose. To help reduce this risk, the recommended starting dose is 1 mg. Impairment can occur even if the person feels fully awake the morning after taking the medication.

Severe Allergic Reactions

Rare but serious allergic reactions, including anaphylaxis and angioedema, have been reported. Symptoms may include swelling of the tongue, throat, or face, and difficulty breathing. These reactions can be life-threatening and require emergency medical care.

Mental Health and Behavioral Changes

The use of sedative-hypnotics may lead to abnormal thinking or behavioral changes, such as reduced inhibition, increased aggression, agitation, or hallucinations. In people with depression, this medication may worsen the condition or lead to suicidal thoughts and actions.

CNS Depressant Effects

This medication is a central nervous system (CNS) depressant. Its effects are increased when combined with alcohol or other drugs that cause drowsiness, such as opioids, benzodiazepines, or certain antidepressants. It should only be taken when a person is able to stay in bed for a full 7 to 8 hours before being active again.

Withdrawal and Rebound Insomnia

Stopping the medication abruptly after several days of use may cause rebound insomnia, where sleep problems are temporarily worse than they were before treatment. Long-term use followed by sudden discontinuation may also lead to withdrawal symptoms such as anxiety, unusual dreams, nausea, or stomach cramps.

Respiratory Concerns

Caution is advised for individuals with compromised respiratory function, such as those with sleep apnea or chronic obstructive pulmonary disease (COPD), as the medication may affect breathing.

Pregnancy

There are no adequate or well-controlled studies of Lunesta (eszopiclone) use in pregnant women. In animal studies, the drug caused some negative effects on fetal development when given at doses much higher than those used in humans. However, animal results do not always indicate how a drug will affect a human pregnancy.

If you are pregnant or planning to become pregnant, discuss the potential risks and benefits with your doctor. It is generally recommended to use this medication during pregnancy only if the potential benefit justifies the potential risk to the fetus. Some similar sedative medications used late in the third trimester have been associated with symptoms in newborns such as excessive sleepiness or breathing difficulties.

Breastfeeding

It is not known whether eszopiclone passes into human breast milk. Because many medications are excreted in breast milk and could potentially affect a nursing infant, healthcare providers typically advise caution.

If you are breastfeeding, talk to your doctor about the best way to manage your sleep. They may recommend monitoring the infant for signs of excessive sleepiness, lethargy, or breathing problems, or they may suggest an alternative treatment option.

Dosage Forms

Lunesta is available in the following form:

• Oral Tablet: This medication is a film-coated tablet intended to be swallowed whole.

FDA Approval and Indications

The U.S. Food and Drug Administration (FDA) approved Lunesta (eszopiclone) for the treatment of insomnia in adults who have difficulty falling asleep or staying asleep. It belongs to a class of medications known as sedative-hypnotics.

Boxed Warning

Lunesta carries a Boxed Warning, the FDA's most serious type of warning, regarding the risk of complex sleep behaviors. These behaviors occur while the patient is not fully awake and can include sleepwalking, sleep-driving, and engaging in other activities like cooking or making phone calls. Because these incidents have resulted in serious injuries and death, the FDA requires that the medication be discontinued immediately if a patient experiences a complex sleep behavior.

Safety Communications

In 2014, the FDA issued a safety communication requiring the manufacturer to lower the recommended starting dose of Lunesta. This change was implemented because data showed that drug levels in some patients could remain high enough the morning after use to impair activities requiring alertness, such as driving, even if the person feels fully awake.

Regulatory Classification

Lunesta is classified as a Schedule IV controlled substance under the Controlled Substances Act. This classification indicates that the medication has a potential for misuse, abuse, and physical or psychological dependence.

How Lunesta Works for Insomnia

Lunesta (eszopiclone) is classified as a sedative-hypnotic. It functions by slowing activity in the brain to facilitate sleep. It is specifically used to treat two main types of sleep difficulties:

• Difficulty falling asleep: It helps reduce the time it takes to transition from wakefulness to sleep.
• Difficulty staying asleep: It helps decrease nighttime awakenings and increases the total amount of time spent sleeping.

Administration for Sleep

To effectively treat insomnia, Lunesta should be taken immediately before bedtime. It is important to only take the medication when there is a window of at least 7 to 8 hours available for sleep. If a person wakes up too early after taking the drug, they may experience grogginess or memory problems the next day.

Insomnia symptoms typically improve within 7 to 10 days of starting treatment. If sleep problems persist beyond this period, it may suggest an underlying condition that needs to be addressed by a healthcare provider. Unlike some other sleep aids, Lunesta has been approved for longer-term use when necessary, though the lowest effective dose is generally recommended to minimize side effects.