ZzzQuil Liquid Sleep-Aid
Having trouble getting that sound sleep your internal clock craves? Try non-habit-forming ZzzQuil Liquid Sleep-Aid, available in warming berry flavor.
ZzzQuil LiquiCaps® Sleep-Aid
Just one dose of easy-to-take ZzzQuil LiquiCaps® helps you get exactly what you need—a beautiful night’s rest, so you can wake up feeling refreshed.
Although ZzzQuil is brought to you by the makers of Vicks NyQuil, it’s not for colds. It’s not for pain. It’s just for sleep. But how does ZzzQuil work—and how does it help you get the sleep you need?
ZzzQuil contains diphenhydramine HCI, which is a big word for a small compound that helps you sleep. 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. Diphenhydramine is an antihistamine, which blocks your brain’s alertness to make you feel the opposite: drowsy.1
Studies have shown that diphenhydramine relieves occasional sleeplessness when used as directed by reducing the time it takes for you to fall asleep so you feel rested in the morning.2 Plus, diphenhydramine is non-habit-forming, which means that you can feel safe taking ZzzQuil as directed—to get a good night’s sleep and wake up feeling refreshed.
1 Emanuel MB. Histamine and the antiallergic antihistamines: a history of their discoveries.Clinical and Experimental Allergy. 1999; 29:1–11.
2 U.S. Code of Federal Regulation. 21 CFR 338—Nighttime sleep aid drug products for over-the-counter human use. 14 February 1989.
Why Do You Need Sleep?
There’s no simple answer for why we need the amazingly complex state our bodies fall into every night. Scientists do know that sleeping is not a passive activity—our bodies snooze while our brains keep busy processing information, consolidating memories, and conserving energy.1 And without sleep, the effects are immediate: Common indicators of sleep loss include mood change (irritability and general grumpiness), feeling inattentive, and a reduction in psychomotor performance.2,3
Understanding Your Natural Rhythm
Your body has a natural 24-hour cycle called the circadian rhythm, which helps you to feel awake when it’s light out and sleepy when it’s dark.4 However, this natural synchrony can work against those who keep later hours or work night shifts in the current world. If travel, work, or an ever-changing schedule keep you up and active at night, be sure to get 7 to 8 hours of sleep—even if it’s during the day.5 Also try to keep to your night owl schedule, even on your days off.6 And if you’re suffering from jet lag after traveling, try to rest when your body tells you to. It can take several days for your body to adjust to your current time zone and return to your previously set circadian rhythm.5
The Right Amount of Shut-eye
There is one sleep fact that most specialists can agree on: how much sleep you need to perform your best, both mentally and physically. While the answer varies a bit from person to person, the findings are fairly definitive: The average adult needs about 7 to 8 hours of sleep to function well and feel rested.7
1 U.S. Department of Health and Human Services National Institutes of Health (NIH) and National Heart Lung and Blood Institute. Your guide to healthy sleep. NIH Publication No. 11-5800. September 2011. Available at: www.nhlbi.nih.gov/health/public/sleep/healthysleepfs.pdf. Accessed 15 March 2012.
2 Bonnet MH. Acute sleep deprivation. In: Kryger MH, Roth T, Dement WC, eds.Principles and Practice of Sleep Medicine. 5th ed. Philadelphia, PA: Saunders/Elsevier; 2011:54-66.
3 Vgontzas AN, et al. Adverse effects of modest sleep restriction on sleepiness, performance and inflammatory cytokines.Journal of Clinical Endocrinology & Metabolism. 89(5):2119-2126. Available at: http://jcem.endojournals.org/content/89/5/2119.full.pdf. Accessed 20 March 2012.
4 Turek FW. Introduction: master circadian clock, and master circadian rhythm. In: Kryger MH, Roth T, Dement WC, eds.Principles and Practice of Sleep Medicine. 5th ed. Philadelphia, PA: Saunders/Elsevier; 2011:360-362.
5 U.S. Department of Health and Human Services National Institutes of Health (NIH) and National Heart Lung and Blood Institute. Your guide to healthy sleep. NIH Publication No. 11-5271. August 2011. Available at: www.nhlbi.nih.gov/health/public/sleep/healthy_sleep.pdf. Accessed 15 March 2012.
6 National Sleep Foundation. Shift work and sleep. Available at: http://www.sleepfoundation.org/article/sleep-topics/shift-work-and-sleep. Accessed 7 May 2012.
7 National Sleep Foundation. How much sleep do we really need? Available at: http://www.sleepfoundation.org/article/how-sleep-works/how-much-sleep-do-we-really-need. Accessed 18 January 2012.
Ready to hit the sheets? Consult these checklists before and after you hit the hay to be sure that your nighttime and daytime activities are helping you get the sleep you need.
Nap early, nap briefly.
Cut out any caffeine after 3 p.m.
Take a bath.
Quiet your mind.
Hungry? Keep it simple.
Thirsty? Keep it to one glass of water or less.
Keep your bedroom dark and cool.
Wear comfy PJs.
Snuggle up to soft and cozy sheets.
Turn your alarm clock away from you.
Listen to sleep-friendly noise.
Try using earplugs.
Follow a consistent sleep schedule.
Remove all electronics from the bedroom.
Devote your bed to you and you alone.
Still can’t sleep? Don’t panic.
No. ZzzQuil is an over-the-counter (OTC) sleep-aid that contains diphenhydramine HCl. NyQuil is a line of OTC cough, cold, and flu symptom relief medications that contain different active ingredients in each product to treat various symptoms. ZzzQuil is from the makers of Vicks NyQuil, but is NOT NyQuil.
Some “PM” products contain a pain reliever such as acetaminophen or ibuprofen in addition to a sleep-aid ingredient. ZzzQuil is different from these because it does not contain any pain reliever. ZzzQuil: It’s not for colds. It’s not for pain. It’s just for sleep.
ZzzQuil contains diphenhydramine HCl, which has been used for many years. Clinical studies were conducted on diphenhydramine HCl and submitted to the FDA, showing its safety and efficacy to relieve occasional sleeplessness when used as directed. These studies are on file with the U.S. FDA.
Diphenhydramine HCI, the active ingredient in ZzzQuil, is not habit forming. Stop use and ask a doctor if sleeplessness persists continuously for more than two weeks. Insomnia may be a symptom of serious underlying medical illness.
For adults and children 12 years and over, the dose of ZzzQuil Liquid is 30 mL (2 tablespoons) at bedtime if needed or as directed by a doctor.
For adults and children 12 years and over, the dose of ZzzQuil LiquiCaps® is TWO 25 mg LiquiCaps® (50 mg) at bedtime if needed or as directed by a doctor.
Take one dose per day (24 hours) at bedtime if needed for relief of occasional sleeplessness.
There are many factors that could influence how rested you feel. These could include the number of hours you sleep, the time that you take ZzzQuil, and other individual factors.
We recommend you take ZzzQuil when you have adequate time to get a full night’s sleep.
ZzzQuil is indicated to relieve occasional sleeplessness. Stop use and ask a doctor if your sleeplessness persists continuously for more than two weeks. Insomnia may be a symptom of serious underlying medical illness.
ZzzQuil is recommended to be taken at bedtime. You should only take one dose of ZzzQuil in a 24-hour period. We recommend you take ZzzQuil when you have adequate time to get a full night’s sleep.
Before taking ZzzQuil, you should read the label and determine if ZzzQuil is right for you. If you have any questions, consult your healthcare professional.
ZzzQuil does have an expiration date. The expiration date can be found on the bottle for ZzzQuil Liquid and on the carton and blister card for ZzzQuil LiquiCaps®.
We can't recommend using expired product because we can't guarantee its stability. You should appropriately dispose of any expired product.
If you see expired product on a store shelf, please bring it to the attention of the store personnel immediately. Always check the expiration date prior to purchasing an over-the-counter drug product. If you notice your product has expired while in your medicine cabinet, please dispose of the medicine properly and keep out of the reach of children.
The following links may provide some helpful information: