Acetylcholine is a natural chemical that affects many functions in your body, including your heart rate, muscle movement, memory, and attention. When ZzzQuil is used as directed, side effects are not common. However, like most drugs, ZzzQuil may cause some side effects.
ZzzQuil Nighttime Sleep-Aid may cause other possible side effects, so be sure to read the package before using the product. Remember, the active ingredient in this medication is not a commonly abused medication. To make sure you use ZzzQuil safely, follow these tips:. And why it can help you sleep. Also learn about antihistamines, side effects,. It's well-documented that blue light can have a negative impact on your melatonin levels. But does any light help you get to sleep faster?
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The manufacturer states that children under the age of 12 years should not use this medication. ZzzQuil is available in both liquid and capsule forms. For the liquid form, a single 50 milligram dose is equal to 30 milliliters , or 2 tablespoons. Liquid ZzzQuil comes with a special cup for measuring out the correct dose. For the capsule form, a single 50 mg dose is equal to two ZzzQuil capsules.
A person cannot cut, chew, or split the capsules. ZzzQuil is also available in an alcohol-free liquid solution, which may be more appropriate for adolescents. Diphenhydramine, which is the active ingredient in ZzzQuil, can cause side effects in some people. The most common side effects of diphenhydramine include :. Rarely, more serious side effects can occur, including :. The intended use of ZzzQuil is for occasional sleeplessness.
The manufacturer recommends that people consult a doctor if they experience sleeping difficulties continuously for more than 2 weeks, as this may be a symptom of a more serious medical condition.
It is also important to avoid drinking alcohol when taking ZzzQuil as this can increase drowsiness. Older adults should use ZzzQuil with caution as side effects such as drowsiness, dizziness, and low blood pressure can increase the risk of falling.
Taking ZzzQuil may worsen certain medical conditions, including :. People who experience urinary difficulties while taking ZzzQuil should stop taking the medication and speak to a doctor.
Not everyone can take ZzzQuil. People should not give ZzzQuil to children under the age of 12 years. The active ingredient of ZzzQuil can pass into breastmilk, so people who are breastfeeding should consult a doctor before taking it. Pregnant women should also seek medical advice before using this medication. People taking monoamine oxidase inhibitors MAOIs , which are a type of antidepressant , should avoid taking ZzzQuil or speak to a doctor first. ZzzQuil, an over-the-counter sleep aid that contains the generic drug diphenhydramine , is used to treat people experiencing difficulty falling or staying asleep.
How well does ZzzQuil work to treat insomnia? What are some of the potential common and serious side effects from using ZzzQuil? Learn about ZzzQuil, what it does to you, and how it may help you to sleep better. ZzzQuil is sold over-the-counter, meaning that you don't need a prescription to purchase it.
Sold as a liquid or a liquid-filled capsule, ZzzQuil is a sleep aid that is used to treat insomnia characterized by difficulty falling or staying asleep. ZzzQuil is meant to relieve occasional sleeplessness, and shouldn't be used for insomnia lasting more than two weeks. If insomnia persists, cognitive behavioral therapy for insomnia CBTI is recommended.
ZzzQuil's active ingredient, diphenhydramine, is most often used to provide relief from allergies; sleepiness is a side effect of this component. But since diphenhydramine is the medication's only active ingredient, it is advertised to be safer than other "PM" sleeping pills that may also contain Tylenol acetaminophen , ibuprofen, or other ingredients.
It should be taken when you can devote eight hours to sleep to avoid morning side effects. Antihistamines block the action of the chemical histamine, a signal within the central nervous system that promotes wakefulness.
As a result, antihistamine medications can lead to drowsiness. Diphenhydramine and histamine work within the brain as well as other parts of the body, causing the potential for side effects. Diphenhydramine can also suppress a cough or nausea and may lead to uncontrolled movements called dyskinesias. Diphenhydramine, the main ingredient of ZzzQuil, is only modestly effective in improving sleep, according to research.
Studies suggest that people fall asleep on average about 8 minutes faster compared to placebo. The total amount of sleep improves by an average of about 12 minutes. The American Academy of Sleep Medicine discourages the use of the medication as a sleep aid because the benefits are approximately equal to the potential for harm.
Speak with your healthcare provider if you're concerned about how ZzzQuil may affect your health or interact with your other medications. In general, it should not be used in children under 12, and it should be used with caution in older people. Some of the conditions that may require additional caution when considering the use of ZzzQuil include:.
The active ingredient in ZzzQuil that helps you sleep is diphenhydramine HCl, which is an antihistamine. The ZzzQuil line of products helps you sleep soundly so you can wake up feeling refreshed. It also reduces the amount of time it takes to fall asleep, if you have difficulty falling asleep.
A: ZzzQuil contains diphenhydramine, an antihistamine that causes drowsiness. To help you stay awake and alert, your body produces histamine, a naturally occurring substance that interacts with receptors in your brain to promote wakefulness. If an antihistamine enters the brain, it can block the effects of histamine and cause the opposite effect — drowsiness. The result? You fall asleep faster. A: ZzzQuil should only be taken once a day before bedtime, as needed for occasional sleeplessness.
Stop use and ask a doctor if sleeplessness persists continuously for more than two weeks. Insomnia may be a symptom of a serious underlying medical illness. Children under 12 years of age should not take ZzzQuil.
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