Nyquil is one of the best treatments for nighttime cold and flu symptoms. It helps to ease fever, stuffy nose, and cough. But likewise other cold & cough tablets, “Does NyQuil Make You Sleepy?” 

Well, Nyquil has the potential to produce drowsiness, which makes it a cold medicine thing to treat a nighttime cold. 

It is not meant to be a sleep aid; it may cause sleepiness. Therefore, by taking this medicine, you will feel sleepy. Over 12 years of age can consume it. However, this medicine is better for people who complain of insomnia.  

In this article, I will describe how Nyquil makes you sleepy, the ingredients, and other potential side effects you should remember after taking Nyquil medicine.

Ingredients of Nyquil –  

The primary goal of Nyquil is to relieve the cold, but it has been used for temporary treatment to prevent falling asleep. This is because it contains some ingredients that cause sleepiness.  


Acetaminophen – 

Nyquil contains an ingredient called Acetaminophen, which helps to reduce pain or fever. The primary aim of this salt is to lessen mild aches, pain, and sore throat. It has few side effects, but too much consumption can damage the liver, as Nyquil combined with an antihistamine can cause you to get tired. This is the best integredient for Does Nyquil make you sleepy.

Doxylamine Succinate –

Doxylamine succinate is a powerful antihistamine that helps relieve allergies, fever, and the common cold. It hinders common natural substances that can improve symptoms such as watery eyes, runny nose and sneezing. Therefore, this is the main ingredient that can make you feel drowsy. Still, it is not for the long term. This is the best integredient for Does Nyquil make you sleepy

Dextromethorphan HBr –

Dextromethorphan HBr has reduced the signal from the brain to cough. Doxylamine also causes sleepiness. It has hallucinogenic properties. You cannot take this medication without a prescription as it comes in a dissociative drug. It fluctuates that perception of sight and produces feelings of detachment. This is the best integredient for Does Nyquil make you sleepy.

Does Nyquil make you sleepy?

Does Nyquil make you sleepy: NyQuil has antihistamine properties, acting as a natural chemical receptor that produces the body. It triggers sleep. Doxylamine also triggers the sleep-wake cycle because it controls histamine. When histamine tries to signal to stay awake, antihistamine blocks the passage to remake awake, leading to sleepiness.

However, this medication is addictive and causes side effects too. Therefore, always ask your doctor before taking a Nyquil tablet. 

How long will you feel sleepy after taking Nyquil?

If you have taken Nyquil tablets, you will feel sleepy for 30 minutes. The effects last for 6 hours. However, it depends upon the doses you take. Although Nyquil tablets have better sleep, they are not suitable for long-term‌ sleeping. 

As Nyquil can lead to feeling drowsy, so be cautious while driving and lifting heavy machines. You should also avoid taking alcohol and smoking. If you have any queries, you can ask your doctor. 

Nyquil side effects – 

Nyquil has an effective and safe treatment for flu and cold symptoms. However, if you are sleeping. Drowsiness is a common side effect of Nyquil tablets. The other side effects are: 

The other side effects of Nyquil need immediate treatment are: 

  • Hallucination 
  • Confusion
  • Shaking 
  • Seizures
  • Fast Rate Heart
  • Urination
  • Inability to Wake up
  • Skin flushing
  • Blisters
  • Rash 

Can Nyquil be addictive? 

Nyquil has the dextromethorphan effects of hallucinogens. This creates a high feeling among people. Suppose you are taking any medicine, then always ask the doctor before taking it. 

If you are buying this medicine, you need to show the prescription to your pharmacist. 

Additional Activities assist you in falling asleep easily. 

You can also do other activities that stimulate your sleep. Nyquil can cause sleepiness, but not for a long time. The following activities you can follow at your home: 

Lifestyle modification – 

Insomnia can also be covered by doing some lifestyle activities to some extent. It enhances your sleep. Therefore, strictly stick to a schedule. In this way, your body knows when you need to sleep. Cleaning your room is efficient in making your mood good. Studies revealed that if you go to bed and wake up simultaneously, your body does not interrupt your sleep cycle. 

Never use electronic devices before going to bed. You can even count stars or read a book which is one of the most effective ways to treat yourself, and you may fall asleep. This is best activity for Does Nyquil make you sleepy.

Melatonin Boost –

The natural melatonin boost food also helps to encounter your problem. If you are taking Nyquil tablets and want to feel good in your sleeping cycle, then you can also replace it by taking some foods listed below. 

  • Milk
  • Pistachios
  • Tart
  • Fatty fish
  • Rice
  • Mushrooms
  • Oats
  • Berries

Read Also: How Do I Treat Common Cold & Cough?

FAQs – 

What does Nyquil do?

Three ingredients are Acetaminophen, dextromethorphan, and doxylamine. That means it reduces fever and minor pain and suppresses the coughing reflex.

How fast does Nyquil show effects?

The Nyquil table shows effective results in 30 minutes. It lasts for 6 hours.

Who should not take Nyquil?

If you have a serious liver problem, you can avoid taking Acetaminophen because it severely impacts the liver. You should know that you cannot take over 4000 milligrams of Acetaminophen daily.

Does Nyquil help fight a cold?

Certainly, the primary goal of Nyquil is to relieve cold and flu symptoms. It showed effective results in severe cold symptoms.

Also Read: Children’s Day Special: Home Remedies For Cold And Cough

In Conclusion – 

There is no doubt that Nyquil tablets make people sleepy. However, there are some points you need to remember before taking Nyquil medicine. In this above blog, I have highlighted some conditions you need to see, and if you develop any rare or severe side effects, you can inform the doctor immediately.  

If you are thinking of taking this medication for insomnia, then ask and give your medical history to your doctor. You can also book your appointment online. Many hospitals deal virtually. You can also approach this method for instant treatment. In this article we discussed about Does Nyquil make you sleepy.

Read Also: 10 Best Cold Medicines for Runny Nose in India