Mucinex dm insomnia

Mucinex-D For Nasal Congestion. Mucinex-D contains guaifenesin and pseudoephedrine. Pseudoephedrine is an effective nasal decongestant and the active ingredient in the brand-name product Sudafed. It should be noted that Mucinex-D can only be found behind the pharmacy counter due to The Combat Methamphetamine Epidemic …

lightheadedness. drowsiness. nervousness. restlessness. nausea. vomiting. stomach pain. Side effects are usually not too common when you use Robitussin DM as recommended, but nausea is more common ...Drug interactions are reported among people who take Mucinex dm and Naproxen. Common interactions include otorrhoea among females, and balance disorder among males. The phase IV clinical study analyzes what interactions people have when they take Mucinex dm and Naproxen together. It is created by eHealthMe based on 29 reports …Stop using Mucinex Fast-Max DM Max and call your doctor at once if you have: mood changes; severe headache; or. severe dizziness or anxiety, feeling like you might pass out. Common side effects of Mucinex Fast-Max DM Max may include: dizziness, drowsiness; sleep problems ( insomnia ); diarrhea; or. feeling nervous, …Yes, you can safely take Mucinex at night. Mucinex contains Guaifenesin, which is an expectorant (1). Guaifenesin does not affect your brain or cause any type of sleep disturbance. This is why you can take Mucinex at any time of the day. Mucinex is generally available in two strengths – 200 and 400 mg that can be taken 4-5 times a day.severe nausea or vomiting; severe headache, blurred vision, pounding in your neck or ears; slow breathing; or. unusual changes in mood or behavior. Common side effects of Mucinex FreeFrom Severe Congestion and Cough may include: diarrhea, constipation; dizziness, drowsiness; sleep problems (insomnia); or. feeling nervous, restless, or irritable.dizziness, drowsiness; sleep problems (insomnia); diarrhea; or. feeling nervous, restless, anxious, or irritable. Common side effects may include: This is not a complete list of side effects and ...12/4/2022. 1. Sinus congestion. Sinus cleared but dizziness, diarrhea, vivid nightmares, heart palpitations, anxiety/panic attacks, and hands trembling. All side effects cleared in less than 24 hours after stopping to take Mucinex. The side effects are such that it is not worth to take this drug. F. 57. 4 days.

Mucinex DM® is an over-the-counter medication used to alleviate coughing caused by bronchitis, colds, or other respiratory illnesses. It suppresses coughs. ... sweating, headaches, insomnia, joint pain, and dizziness. The U.S. Drug Enforcement Agency currently does not consider DXM a substance posing an abuse or addictive threat. It …NDC 63824-072-35 MAXIMUM STRENGTH. Mucinex®DM 1200 mg guaifenesin & 60 mg dextromethorphan HBr extended-release bi-layer tablets. EXPECTORANT & COUGH SUPPRESSANT. 12 HOUR ®. Controls Cough. Thins and Loosens Mucus. Immediate and Extended Release. 14 EXTENDED-RELEASE BI-LAYER TABLETS. MUCINEX DM MAXIMUM STRENGTHguaifenesin and dextromethorphan ... Save $5 - SIGN UP NOW. If you're looking for cough & chest congestion medicine to control cough & thin and loosen tough mucus that's bothering you, call in Maximum Strength Mucinex DM Extended-Release Bi-Layer Tablets. One dose lasts for 12 hours. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching /swelling ...Often, these ingredients are included in multi-symptom cold and flu preparations, such as Maximum Strength Mucinex D, Robitussin Multi-Symptom Cold, and Tylenol Sinus Congestion & Pain. ... Other occasional side effects of nasal sprays may include nosebleeds, agitation and insomnia. Thankfully, symptoms usually last no more …Apr 9, 2024 · severe dizziness or anxiety, feeling like you might pass out. Common side effects of Mucinex Cough and Chest Congestion may include: dizziness, drowsiness; sleep problems ( insomnia ); diarrhea; or. feeling nervous, restless, anxious, or irritable. This is not a complete list of side effects and others may occur. The active ingredient in Robitussin and Mucinex DM products, dextromethorphan, is an antitussive, or cough suppressant. It stops your urge to cough and helps reduce coughing caused by slight ...Mucinex DM contains two active ingredients: The expectorant guaifenesin. The cough suppressant dextromethorphan. Now, guaifenesin has not been linked to causing false positives on urine drug tests but dextromethorphan has been. However, dextromethorphan causing a false-positive is thought to be very uncommon and if it does …

If you're looking for cough & chest congestion medicine to control cough & thin and loosen mucus that's bothering you, call in Mucinex DM Extended-Release Bi-Layer Tablets. One dose lasts for 12 hours.Omg this has been happening to me the past couple of nights too since I started taking the sinus max mucinex. Waking up with crippling anxiety and an overwhelming sense of doom. I was literally shaking last night and have been experiencing bad insomnia since I …severe dizziness or anxiety, feeling like you might pass out. Common side effects of Mucinex Cough and Chest Congestion may include: dizziness, drowsiness; sleep problems ( insomnia ); diarrhea; or. feeling nervous, restless, anxious, or irritable. This is not a complete list of side effects and others may occur.Mucinex DM is a prescription and over the counter drug used to relieve chest congestion. Mucinex DM is used to control coughs and other mild respiratory conditions including the common cold and allergies. Mucinex DM works by thinning the thick mucus found inside the chest or nose to help persons breathe easily.It'll slightly decrease the quality of your sleep and it's habit/dependancy forming so don't take it more than one night in a row and maybe twice in a week. Don't use it for sleep long term either. I'll use that or benadryl to knock me out on really bad insomnia nights, to good success. Melatonin and benadryl. Mucinex DM give me weird dreams.headache. hives. nausea or vomiting. skin rash. stomach pain. Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional. Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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The active ingredients in Mucinex DM are guaifenesin 1200 milligrams and dextromethorphan HBr 60 milligrams. Mucinex DM is an expectorant and cough suppressant. According to WebMD....There is plenty of misinformation about how much sleep adults need to get in order to be well rested in the morning. According to the CDC, adults need an average of 7 or more hours...The affected individual may also experience bone or muscle aches. Other signs and symptoms of dextromethorphan withdrawal include cold flashes, diarrhea, and vomiting. The dextromethorphan user may also lose a significant amount of weight while going through withdrawal. Cravings for dextromethorphan can also occur during the …Dec 15, 2022 · The main ingredient in most Mucinex products is guaifenesin. Guaifenesin helps loosen and thin mucus in your airways so you cough it up easier. But there’s not much evidence showing that it works. Combination Mucinex products contain other ingredients for multi-symptom relief. Mucinex DM and Mucinex Fast-Max Cold & Flu are two examples. muscle pains or stiffness. nasal congestion. nausea. pain in arms or legs. pain or tenderness around eyes or cheekbones. painful menstrual bleeding. redness or swelling in ear. ringing or buzzing in ears. runny or stuffy nose.Regular tablets. Both Mucinex and Mucinex DM are available as tablets you take by mouth. You can take one or two tablets of either drug every 12 hours. For either …

Summary: Drug interactions are reported among people who take Unisom and Mucinex. Common interactions among females include cellulitis and death. Common interactions among males include sputum discoloured and pneumonia. The phase IV clinical study analyzes what interactions people have when they take Unisom and Mucinex together.Drug Facts. ACTIVE INGREDIENT. Active ingredients (in each extended-release bi-layer tablet)Purposes - Dextromethorphan HBr 30 mgCough suppressant - Guaifenesin 600 mgExpectorant. Uses. helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs …11 Aug 2023 ... Guaifenesin, Mucinex DM, Diabetic Tussin, Tessalon, and Coricidin HBP are some Mucinex alternatives. Get the full list here.Maximum Strength Mucinex DM Extended-release Bi-layer tablets provide powerful symptom relief. The product controls cough, relieves chest congestion, thins and loosens mucus and lasts for 12 hours. It contains a unique bi-layer tablet - one layer for immediate release and one layer for extended release, so the medicine starts to release right ...DMAIC Model - The DMAIC model is commonly used in the Six Sigma process. Learn the ins and outs of the DMAIC model and how it applies to business optimization. Advertisement Proce...Applies to: Mucinex DM (dextromethorphan / guaifenesin) Alcohol can increase the nervous system side effects of dextromethorphan such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with …Drug Facts. ACTIVE INGREDIENT. Active ingredients (in each extended-release bi-layer tablet)Purposes - Dextromethorphan HBr 30 mgCough suppressant - Guaifenesin 600 mgExpectorant. Uses. helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs …Depression isn’t all in your head. It can cause a range of physical symptoms like stomach issues, back pain, and insomnia. Here’s the link between depression and your bod (and how ...Apr 11, 2023 · Mucinex is a brand (trade) name for guaifenesin. Mucinex (guaifenesin) acts indirectly on the gastrointestinal vagal nerves which triggers reflex secretion from submucosal glands and goblet cells, increasing the water content of mucus, making it easier for it to be coughed out. Mucinex also affects the secretion of mucus from goblet and Clara ... Mucinex (Guaifenesin) Generic Name:Guaifenesin. Guaifenesin is used to reduce chest congestion caused by the common cold, flu, or chronic bronchitis. Guaifenesin helps loosen congestion in your ... Applies to: Mucinex DM (dextromethorphan / guaifenesin) and Benadryl (diphenhydramine) Using dextromethorphan together with diphenhydrAMINE may increase side effects such as dizziness, drowsiness, confusion, and difficulty concentrating. Some people, especially the elderly, may also experience impairment in thinking, judgment, and motor ... Aug 24, 2023 · Sudafed works as a decongestant. It helps to relieve stuffiness and sinus congestion or pressure due to the common cold or seasonal allergies. Mucinex is an expectorant. It loosens mucus and thins secretions in the lungs. This can help reduce chest congestion and make coughs more productive. You may opt to use Mucinex if your symptoms are ...

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Mucinex Fast-Max Adult Severe Congestion and Cough Liquid contains Dextromethorphan HBr, a cough suppressant, Guaifenesin, an expectorant, and Phenylephrine HCl, a nasal decongestant. Use as directed. Made in United Kingdom. Do not take more than 6 doses in any 24-hour period. Measure only with dosing cup provided.Aug 2, 2021 · The cough suppressant (dextromethorphan) relieves the intensity and frequency of coughs. Standard Mucinex DM dosage for wet or dry cough: 600/30–1200/60 mg (one to two regular-strength tablets or one maximum strength tablet) every 12 hours. Maximum Mucinex DM dosage for wet or dry cough: 1200/60 mg (two regular-strength tablets or one maximum ... There’s a lot to be optimistic about in the Technology sector as 2 analysts just weighed in on Desktop Metal (DM – Research Report) and Pl... There’s a lot to be optimistic a...Whether it's insomnia, strange dreams, or even sleeping too much, sleep disturbances are part of our body's response to trauma and anxiety. Zyma Islam noticed her sleep began to ch...severe nausea or vomiting; severe headache, blurred vision, pounding in your neck or ears; slow breathing; or. unusual changes in mood or behavior. Common side effects of Mucinex FreeFrom Severe Congestion and Cough may include: diarrhea, constipation; dizziness, drowsiness; sleep problems (insomnia); or. feeling nervous, …Maximum Strength Mucinex DM Extended-release Bi-layer tablets provide powerful symptom relief. The product controls cough, relieves chest congestion, thins and loosens mucus and lasts for 12 hours. It contains a unique bi-layer tablet - one layer for immediate release and one layer for extended release, so the medicine starts to release right ...Taking Mucinex At Night. Very often, the concern with taking certain medications at night is the potential for them to cause insomnia, or trouble sleeping. Fortunately, as it concerns Mucinex, that isn't a known side effect of the medication. In fact, Mucinex has very few reported side effects, and only rarely do they occur. In general, only ...

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Dec 7, 2022 · Mucinex is a bi-layer tablet, with one layer being immediate release and the other slowly releasing medication over 12 hours. This allows the product to be both quick acting and long-lasting. If you are having year-round allergy symptoms, it may be beneficial to add on an antihistamine, such as Claritin or Allegra for daily use as well. Whether it's insomnia, strange dreams, or even sleeping too much, sleep disturbances are part of our body's response to trauma and anxiety. Zyma Islam noticed her sleep began to ch...Some other common side effects that nasal decongestants can cause include insomnia, nervousness, anxiety and tremor. Side effects are usually more common as the dose is increased. Oral decongestants should never be taken with monoamine oxidase inhibitors (MOAIs) or within two weeks of stopping them. MOAIs are used for Parkinson’s …Apr 9, 2024 · severe dizziness or anxiety, feeling like you might pass out. Common side effects of Mucinex DM Maximum Strength may include: dizziness, drowsiness; sleep problems ( insomnia ); diarrhea; or. feeling nervous, restless, anxious, or irritable. This is not a complete list of side effects and others may occur. Call your doctor for medical advice ... Anonymous; Taken for less than 1 month; August 19, 2014; For Cough and Nasal Congestion "I have bronchitis was coughing non stop with chest congestion. I bought a package of Mucinex DM, I took one tablet around 10pm fell asleep at midnight woke up at 2am jittery still completely wide awake at 6am, good news is I can breathe clearly I haven't coughed in 8 hours; it works that's why I give it a ...Summary: Drug interactions are reported among people who take Unisom and Mucinex. Common interactions among females include cellulitis and death. Common interactions among males include sputum discoloured and pneumonia. The phase IV clinical study analyzes what interactions people have when they take Unisom and Mucinex together.Dextromethorphan (DXM) is a cough suppressant used in many cough and cold medicines. It affects serotonin, norepinephrine, NMDA, and sigma-1 receptors in the brain, all of which have been implicated in the pathophysiology of depression.In 2022, the FDA approved the combination dextromethorphan/bupropion to serve as a rapid acting …severe nausea or vomiting; severe headache, blurred vision, pounding in your neck or ears; slow breathing; or. unusual changes in mood or behavior. Common side effects of Mucinex FreeFrom Severe Congestion and Cough may include: diarrhea, constipation; dizziness, drowsiness; sleep problems (insomnia); or. feeling nervous, …The main ingredient in most Mucinex products is guaifenesin. Guaifenesin helps loosen and thin mucus in your airways so you cough it up easier. But there’s not much evidence showing that it works. Combination Mucinex products contain other ingredients for multi-symptom relief. Mucinex DM and Mucinex Fast-Max Cold & Flu are two examples. severe dizziness or anxiety, feeling like you might pass out. dizziness, drowsiness; sleep problems (insomnia); diarrhea; or. feeling nervous, restless, anxious, or irritable. Common side effects ... ….

take with a full glass of water. this product can be administered without regard for timing of meals. adults and children 12 years and older: 1 or 2 tablets every 12 hours; not more than 4 tablets in 24 hours. children under 12 years of age: do not use.Yes, you can safely take Mucinex at night. Mucinex contains Guaifenesin, which is an expectorant (1). Guaifenesin does not affect your brain or cause any type of sleep disturbance. This is why you can take Mucinex at any time of the day. Mucinex is generally available in two strengths – 200 and 400 mg that can be taken 4-5 times a day.Yes, one of the side effects is insomnia. Keep taking Mucinex D and talk to your doctor if you have any of these less serious Mucinex D side effects: dizziness or …Applies to: Mucinex DM (dextromethorphan / guaifenesin) Alcohol can increase the nervous system side effects of dextromethorphan such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with …lightheadedness. drowsiness. nervousness. restlessness. nausea. vomiting. stomach pain. Side effects are usually not too common when you use Robitussin DM as recommended, but nausea is more common ...Both Mucinex and Mucinex DM are available as tablets you take by mouth. You can take one or two tablets of either drug every 12 hours. For either drug, you should not take more than four tablets ...CBT-I can offer a long-term solution for insomnia—here's how it works. An estimated 30 to 40% of Americans experience insomnia symptoms each year—and that was before everything wen...severe dizziness or anxiety, feeling like you might pass out;. Common Tussin DM side effects may include: dizziness, drowsiness; sleep problems ( insomnia ); diarrhea; or. feeling nervous, restless, anxious, or irritable;. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.Elon Musk said over the weekend that Twitter will roll out end-to-end encryption protection for DMs this month. Amongst a ton of product changes to make Twitter a more attractive p... Mucinex dm insomnia, The affected individual may also experience bone or muscle aches. Other signs and symptoms of dextromethorphan withdrawal include cold flashes, diarrhea, and vomiting. The dextromethorphan user may also lose a significant amount of weight while going through withdrawal. Cravings for dextromethorphan can also occur during the withdrawal phase., Mar 5, 2024 · severe nausea or vomiting; severe headache, blurred vision, pounding in your neck or ears; slow breathing; or. unusual changes in mood or behavior. Common side effects of Mucinex Fast-Max Severe Congestion & Cough may include: diarrhea, constipation; dizziness, drowsiness; sleep problems (insomnia); or. feeling nervous, restless, or irritable. , Mucinex DM Maximum Strength 60 mg / 1200 mg (Mucinex 1200) View all images Drugs.com Mobile Apps The easiest way to lookup drug information, identify pills, check interactions and set up your own personal medication records., Mucinex (Guaifenesin) - Side Effects, Interactions, Uses, Dosage, Warnings. Menu. NewslettersSearch. Health Conditions A-Z. Alopecia Areata. Breast Cancer. Cancer. …, dextromethorphan food. Applies to: Mucinex DM (dextromethorphan / guaifenesin) Alcohol can increase the nervous system side effects of dextromethorphan such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated ..., Anonymous; Taken for less than 1 month; August 19, 2014; For Cough and Nasal Congestion "I have bronchitis was coughing non stop with chest congestion. I bought a package of Mucinex DM, I took one tablet around 10pm fell asleep at midnight woke up at 2am jittery still completely wide awake at 6am, good news is I can breathe clearly I haven't coughed in 8 hours; it works that's why I give it a ..., , Deje de utilizar este medicamento y llame a su médico de inmediato si usted tiene: cambios de ánimo; dolor de cabeza severo; o. mareo o ansiedad severo, sentir que se puede desmayar. Los efectos secundarios comunes pueden incluir: mareo, somnolencia; problemas para dormir (insomnio); diarrea; o. sensación de nervios, …, blood in your urine. pain or burning when you urinate. difficulty urinating. Symptoms of brain or nerve damage include: memory or vision loss. arm and leg weakness. coordination problems. Stop ..., severe dizziness or anxiety, feeling like you might pass out. Common side effects of Mucus DM may include: dizziness, drowsiness; sleep problems ( insomnia ); diarrhea; or. feeling nervous, restless, anxious, or irritable. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects., 1. Mucinex D helps with nasal congestion, while Mucinex DM helps quiet a cough. Both Mucinex D and Mucinex DM help relieve chest congestion. This is because they both contain guaifenesin (an expectorant ). It helps relieve chest congestion by thinning and loosening mucus in your lungs and throat., Mucinex DM. slide 1 of 3, Mucinex DM, 30 mg-600 mg, oval, white, imprinted with Mucinex 600. slide 1 of 3 < Prev Next > Fenesin DM. ... sleep problems (insomnia); diarrhea; or; feeling nervous, restless, anxious, or irritable;. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects., Mucinex DM contains two active ingredients: guaifenesin and dextromethorphan. The duration that these substances stay in your system can vary based on several factors, including your metabolism, liver function, kidney function, and dosage. Guaifenesin has an elimination half-life of about 1 to 3 hours, meaning it’s typically cleared from the ..., Feb 1, 2024 · headache. hives. nausea or vomiting. skin rash. stomach pain. Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional. Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088. , Summary: Drug interactions are reported among people who take Melatonin and Mucinex. Common interactions among females include dizziness and influenza. Common interactions among males include death and fatigue. The phase IV clinical study analyzes what interactions people have when they take Melatonin and Mucinex together., Extended-release tablets. Regular strength (Mucinex DM and generic): Each tablet contains 600 mg of guaifenesin and 30 mg of dextromethorphan. People 12 years and older: The typical dose is 1 or 2 tablets by mouth every 12 hours. Don't take more than 4 tablets in a 24-hour period. Children under age 12: Don't use., Learn about the potential side effects of Mucinex DM and how Nao Medical can help you manage them. Book an appointment today., Mucinex Dosage and Administration. do not crush, chew, or break tablet. take with a full glass of water. this product can be administered without regard for the timing of meals. adults and children 12 years of age and over: 1 or 2 tablets every 12 hours. Do not exceed 4 tablets in 24 hours. children under 12 years of age: do not use., Take Mucinex in the Morning to Avoid Sleep Disturbance. To stop Mucinex …, Mucinex is an over-the-counter medication whose active ingredient is guaifenesin. Guaifenesin is an expectorant, meaning it helps to thin and loosen mucus in the airways, making it easier to cough up. This action can provide relief from chest congestion and a phlegmy cough often associated with colds, bronchitis, and other …, severe dizziness or anxiety, feeling like you might pass out. Common side effects of Mucinex Cough and Chest Congestion may include: dizziness, drowsiness; sleep problems ( insomnia ); diarrhea; or. feeling nervous, restless, anxious, or irritable. This is not a complete list of side effects and others may occur., Common side effects of Mucinex DM may include: dizziness, drowsiness; sleep problems ( insomnia ); diarrhea; or. feeling nervous, restless, anxious, or irritable. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. See more, Mucinex Dosage and Administration. do not crush, chew, or break tablet. take with a full glass of water. this product can be administered without regard for the timing of meals. adults and children 12 years of age and over: 1 or 2 tablets every 12 hours. Do not exceed 4 tablets in 24 hours. children under 12 years of age: do not use., Mucinex DM temporarily relieves cough due to minor throat and bronchial irritation as may occur with the common cold or inhaled irritants, the intensity of coughing, and the impulse to cough to help you get to sleep. Mucinex DM is available over-the-counter (OTC). Common side effects of Mucinex DM include dizziness, drowsiness, nausea, and ... , Find patient medical information for Mucinex DM oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings., Common side effects of Mucinex DM may include: dizziness, drowsiness; sleep problems ( insomnia ); diarrhea; or. feeling nervous, restless, anxious, or irritable. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088., Nightshift® Sinus Liquid. Formulated with 4 maximum-strength medicines to relieve your worst nighttime sinus and nasal congestion symptoms. One liquid dose helps clear your runny nose and sinus pressure, relieve itchy, watery eyes and your nagging body pain or headache, and control coughing to help you get to sleep at night., Mucinex DM temporarily relieves cough due to minor throat and bronchial irritation as may occur with the common cold or inhaled irritants, the intensity of coughing, and the impulse to cough to help you get to sleep. Mucinex DM is available over-the-counter (OTC). Common side effects of Mucinex DM include dizziness, drowsiness, nausea, and ... , Take Mucinex in the Morning to Avoid Sleep Disturbance. To stop Mucinex …, severe dizziness or anxiety, feeling like you might pass out. Common side effects of Geri-Tussin DM may include: dizziness, drowsiness; sleep problems ( insomnia ); diarrhea; or. feeling nervous, restless, anxious, or irritable. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects., Common side effects of Mucus Relief DM may include: dizziness, drowsiness; sleep problems ( insomnia ); diarrhea; or. feeling nervous, restless, anxious, or irritable. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088., According to Drugs.com, drowsiness is a common side effect of Mucinex. The medication contains dextromethorpan, a chemical that is known to cause sleepiness, as explained by Nation..., Not getting enough sleep can feel brutal when you need to get up and on with your day. Insomnia can affect how well you function and take a toll on your health. But there are simpl...