Dayquil with mucinex

Key points. There are several safe cold/flu medications safe with Celexa (citalopram), and others you should use caution with. Safe medications include Tylenol (acetaminophen), antihistamines, and Mucinex. Dextromethorphan, NSAIDs (e.g. ibuprofen), and Sudafed should be used cautiously. Thanks so much for reaching out!

Dayquil with mucinex. Mucinex and Nyquil Cold & Flu are two common over-the-counter remedies. They can be taken together, but not at night. Mucinex can cause coughing, making it hard to get a good night’s sleep.

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Statins rarely cause liver damage, and doctors no longer check liver enzymes for people on statins routinely. Other common medications that may cause elevated liver enzymes include: The antibiotics synthetic penicillin, ciprofloxacin and tetracycline. The anti-seizure drugs carbamazepine and phenytoin and valproic acid.Well, let’s dive into the topic of whether you can take these two medications simultaneously. When it comes to combining Mucinex and Dayquil, it’s important to consider the active ingredients in each medication. Mucinex contains guaifenesin, which helps loosen mucus and phlegm in your respiratory tract. On the other hand, Dayquil contains a ...Bromfed DM, brompheniramine / dextromethorphan / pseudoephedrine, Mucinex D, Vicks Dayquil Cold & Flu Relief, Vanacof Images Capmist DM dextromethorphan 30 mg / guaifenesin 400 mg / pseudoephedrine 30 mg (CAP DM) View larger imagesTachycardia is a common side effect of many OTC medications, especially in decongestants that contain phenylephrine, such as Dayquil and Mucinex. Tachycardia is when the resting heartrate of an adult is more than 100 beats per minute, and can bring about: Lightheaded or dizziness. Shortness of breath. Chest pain.Q: Can I take Mucinex and benzonatate at the same time? By Sarah Lewis, PharmD. A: Yes. Doctors may combine Mucinex and benzonatate because they treat coughs in different ways. Mucinex is a brand name for guaifenesin, which is an expectorant. It thins mucus, making it easier to cough up. Benzonatate is an antitussive that …The main types are: Drug-drug interaction. This is when a medication reacts with one or more other drugs. For example, taking a cough medicine ( antitussive) and a drug to …They are generally considered safe to take together. However, it's important to note that both NyQuil and benzonatate can cause you to feel tired. NyQuil, the 'night' version of DayQuil, contains doxylamine, a sedating antihistamine. Most people start to feel the effects, including feeling tired, about 30 to 60 minutes after taking a dose.

Dayquil Cold and Flu is a combination of three active ingredients: acetaminophen (an analgesic), dextromethorphan (a cough suppressant), and phenylephrine (a decongestant). Dayquil Cold and Flu helps treat symptoms from the common cold and flu in adults and children. It can relieve stuffy nose, cough, sore throat, headache, aches, and fever.Brand names: DayQuil Severe Cold and Flu, Mucinex Children's Cold, Cough and Sore Throat, Sudafed PE Cold and Cough, Tylenol Cold and Flu Severe, ...Jun 22, 2022 · Mucinex can treat allergies in specific situations. Compared to medications like antihistamines, it doesn’t treat general allergy symptoms. Mucinex can only treat chest congestion or a cough caused by postnasal drip. If you have other symptoms — like a runny nose, watery eyes, or sneezing — Mucinex won’t make a difference. No! It is extremely dangerous to mix dayquil and Adderall together. I did it by mistake once and it was a horrible experience - eyes couldn't focus, heart racing, body twitching, very nauseous ...My son tested positive Sunday and I immediately started giving him Mucinex 3x a day, high dose vitamin c & d. He seemed to improve quickly, went through different phases, fever, congestion, the cough, now back to congestion.Some Mucinex products also contain other active ingredients besides guaifenesin. For instance, Mucinex DM has dextromethorphan, also found in NyQuil. Taking both medicines together could mean you're ingesting a double dose of this cough suppressant. Overdose of any medication can be harmful and lead to side effects or complications.Mucinex and Nyquil Cold & Flu are two common over-the-counter remedies. They can be taken together, but not at night. Mucinex can cause coughing, making it hard to get a good night’s sleep.Apr 21, 2020 · Chest congestion medications, like Robitussin and Mucinex, come in liquid, tablet, and capsule forms. Both work for multiple symptoms although some people may prefer Robitussin for a cough and ...

Sudafed PE. Mucinex. Sinex. Dayquil. Benadryl. Tylenol sinus. Advil sinus congestion. Lusonal. Many store brands such as Equate, Kroger, Walgreens, CVS, etc.Chest congestion: Guaifenesin, a mucolytic found in Mucinex and Robitussin (dextromethorphan), ... Phenylephrine is the active ingredient in Sudafed PE and many other OTC cold medicines, such as DayQuil. However, generations of pharmacists have recommended pseudoephedrine over phenylephrine for those who were cleared to take it.Famotidine Interactions. There are 296 drugs known to interact with famotidine, along with 2 disease interactions, and 1 alcohol/food interaction. Of the total drug interactions, 14 are major, 243 are moderate, and 39 are minor.Dayquil Cold and Flu relief actually contains the same cough suppressant as Mucinex DM (dextromethorphan). So, you would not take the two together.You can take plain Mucinex, which contains an expectorant and no cough suppressant, with Dayquil Cold and Flu/multi-symptom relief.Mucinex DM contains a larger amount of the cough suppressant (30 mg ...

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dextromethorphan hydrOXYzine. Applies to: Vicks NyQuil Severe Cold & Flu (acetaminophen / dextromethorphan / doxylamine / phenylephrine) and hydroxyzine. Using dextromethorphan together with hydrOXYzine may increase side effects such as dizziness, drowsiness, confusion, and difficulty concentrating. Some people, especially the elderly, may also ...Back to the days of notorious pardoner-in-chief Gerald Ford. Donald Trump has developed an appetite for one of the unchecked powers of the US presidency: the pardon. After 17 month...Irbesartan Interactions. There are 295 drugs known to interact with irbesartan, along with 8 disease interactions, and 2 alcohol/food interactions.Of the total drug interactions, 31 are major, 258 are moderate, and 6 are minor.As a pharmacist, I am often asked whether over-the-counter mucus secretion drugs are beneficial for people with COPD. Some people with COPD produce significant amounts of thick mucus, causing difficulties breathing.The most popular mucus-relieving drug on the market is guaifenesin, also known as Mucinex, Altarussin, and Tussin, among others.. These products are found over-the-counter, meaning ...Do medications that fight a cold's symptoms prolong the cold? - BBC Science Focus Magazine.Terbinafine disease interactions. There are 6 disease interactions with terbinafine which include: liver disease. neutropenia. depression. immunosuppression. lupus. renal dysfunction.

Reader Mark is planning a post-pandemic cruise from Singapore to Mumbai. Here's how he can cover business class airfare using points and miles. Update: Some offers mentioned below ...Jan 17, 2023 · It doesn’t matter which you take first, DayQuil or ibuprofen, but after you take one, wait until the middle of the four-hour dose before taking the other medication. And if you only want to take ... Cough medications: Expectorants (like Mucinex), cough suppressants (such as Robitussin or Vicks Formula 44), vapor rubs (like Vicks Vapo Rub) as well as most cough drops are considered safe during pregnancy, but ask your practitioner about dosing. ... Sudafed or DayQuil. Even those experts who say it's okay to take some decongestants will ...In general, it is not recommended to use both NyQuil and Claritin ( loratadine) together due to a duplication of therapy between the two medications and the possibility of increased side effects. Claritin is an antihistamine and NyQuil contains doxylamine, a sedating antihistamine. In most situations, it is not recommended to take two ...Mucinex DM should not be taken at the same time as 'Tylenol Cold And Head Congestion' as they both contain guaifenesin. Taking both medications together is a therapeutic duplication and could potentially increase the risk of side effects. It is important to always read the labels of the drugs you are looking to take, especially over-the-counter ...Mucinex extended-release tablets; Diabetic Tussin DM (also contains dextromethorphan) Robitussin Sugar-free, Dye-free, Cough+Chest Congestion DM (also contains dextromethorphan) Drinking plenty of water, including warm water, can also help thin mucus and relieve congestion. What to take for general cold symptoms. Related QuestionsThey can cause bleeding issues and taking them with methylprednisolone can cause some concerning gastrointestinal side effects. Unless otherwise directed by your doctor, do not take ibuprofen or naproxen with methylprednisolone. Acetaminophen is OK to take in most cases so that is what I would recommend. It is by far the most common ingredient ...It's available as a standalone medication and in combination products like NyQuil, Mucinex DM, and Theraflu Multi-Symptom Severe Cold. If you take Paxlovid and dextromethorphan at the same time, there's a chance you may experience slightly more dextromethorphan side effects. You don't need to avoid the combination, but it's a good idea ...Summary: Drug interactions are reported among people who take Xyzal and Dayquil. Common interactions among females include diplopia and dizziness. The phase IV clinical study analyzes what interactions people have when they take Xyzal and Dayquil together. It is created by eHealthMe based on data from the FDA, and is updated regularly.More about ( acetaminophen / dextromethorphan / doxylamine / phenylephrine ) Ratings & Reviews. Mucinex DM has an average rating of 5.1 out of 10 from a total of 21 ratings on Drugs.com. 32% of reviewers reported a positive effect, while 47% reported a negative effect. Vicks NyQuil Severe Cold & Flu has an average rating of 5.5 out of 10 from a ...Steam treatments: These treatments add moisture to the airways and loosen the cough. Menthol: When used as a rub, aromatherapy, or lozenge, menthol can help to decrease cough and sensation of airway irritation. Thyme and ivy leaf: When taken in syrup form or in tea, the combination of thyme and ivy leaf works well to decrease cough …Cough medications: Expectorants (like Mucinex), cough suppressants (such as Robitussin or Vicks Formula 44), vapor rubs (like Vicks Vapo Rub) as well as most cough drops are considered safe during pregnancy, but ask your practitioner about dosing. ... Sudafed or DayQuil. Even those experts who say it's okay to take some decongestants will ...

DayQuil. Delsym Adult Cough Suppressant Liquid. Dimetapp. Halls cough drops. NyQuil Cold & Flu. Ricola cough drops. ... Mucinex Children's Cough Mini-Melts. Zarbee's Naturals Cough Syrup. The bottom line. The CARES Act expanded the list of HSA- and FSA-eligible items to include OTC drugs. You no longer need a prescription to buy these items ...

Medications to be avoided or used with caution in all patients with Parkinson's disease. typical antipsychotics. They. dopamine receptors. The. typical antipsychotics. Note: If an antipsychotic that blocks dopamine receptors needs to be used, atypical antipsychotics are better choices than typical antipsychotics.Tell all of your health care providers that you take Mucinex Fast-Max (acetaminophen, dextromethorphan, guaifenesin, phenylephrine caps & tabs). This includes your doctors, nurses, pharmacists, and dentists. Do not take more than what your doctor told you to take. Taking more than you are told may raise your chance of very bad side …Summary: Drug interactions are reported among people who take Mucinex dm and Dayquil. Common interactions among females include bronchitis and gastritis. Common interactions among males include nausea and fatigue. The phase IV clinical study analyzes what interactions people have when they take Mucinex dm and Dayquil together.You can use Mucinex throughout the day, but you typically use NyQuil at night to help you sleep and let your body recover. The ingredient doxylamine in NyQuil …So while medications like DayQuil and NyQuil and Mucinex can feel like the fastest and easiest way to feel better quicker, they may do more harm than good — especially if you want to avoid that fuzzy brain feeling. In most cases, you'll be better off taking more pills, specifically targeted to your particular symptoms, because, yes, your ...Rosuvastatin (Crestor) is a common statin medication used to treat high cholesterol.It works in the liver to lower the amount of low-density lipoprotein (LDL, or "bad cholesterol"). This can help lower your risk of heart-related complications, like heart attacks or strokes.. As with all medications, there are a few things to keep in mind about rosuvastatin if you're taking it.Both Mucinex and Dayquil contain multiple active ingredients, some of which may overlap. For instance, both medications can include an expectorant or cough suppressant. Combining them without proper guidance could lead to an excessive intake of certain components, potentially causing side effects or interactions with other medications you may ...

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Different brands of Mucinex Sinus-Max (acetaminophen, dextromethorphan, guaifenesin, phenylephrine caps & tabs) may be for use in different ages of children. Talk with the doctor before giving Mucinex Sinus-Max (acetaminophen, dextromethorphan, guaifenesin, phenylephrine caps & tabs) to a child.It’s the generic form of Mucinex and is a component in DayQuil Complete and Robitussin Severe Multi-Symptom Cough Cold and Flu. See guaifenesin interactions here. Phenylephrine. This ingredient …Mucinex (guaifenesin) omeprazole; prednisone; Synthroid (levothyroxine) tramadol; Tylenol (acetaminophen) Vitamin B12 (cyanocobalamin) Vitamin D3 (cholecalciferol) Zofran (ondansetron) Zoloft (sertraline) Zyrtec (cetirizine) Z-Pak disease interactions. There are 4 disease interactions with Z-Pak (azithromycin) which include:Multi-symptom cold medicine is a popular choice for those suffering from the common cold and flu. Mucinex ® Fast-Max ® (All-in-One) liquid provides multi-symptom cold & flu relief for up to 9 symptoms and is 50% more concentrated (per mL) vs the leading liquid daytime severe cold and flu remedy* (*Source: Nielsen latest 52-weeks ending 10/ ...The most commonly used OTC cough medication is dextromethorphan, a drug that is in a multitude of products, including Delsym, DayQuil, and Robitussin DM. Benzonatate and dextromethorphan do work differently in some ways and do not have an interaction with one another. Benzonatate works by reducing the cough reflex in the lungs and air passages.From Bitcoin to Liquid Money perfume to Warren Buffett pinups: Use this holiday gift guide for a friend who loves cold, hard cash. By clicking "TRY IT", I agree to receive newslett...JPMORGAN CORPORATE BOND FUND CLASS A- Performance charts including intraday, historical charts and prices and keydata. Indices Commodities Currencies StocksMucinex (Guaifenesin) Mucinex (guaifenesin) is generally considered OK to use. It can help thin out excess mucus and relieve chest congestion.​​ Ibuprofen/Naproxen. Both ibuprofen and naproxen are considered NSAID (non-steroidal anti-inflammatory) medications. They are considered to be safe to take with Adderall.Abiraterone: learn about side effects, dosage, special precautions, and more on MedlinePlus Abiraterone is used in combination with prednisone to treat a certain type of prostate c...Mucinex (guaifenesin) is safe to take with DayQuil Cold & Flu. There is no interaction between them. Some DayQuil products already contain guaifenesin, such as DayQuil Severe. Mucinex should not be taken with products that already contain guaifenesin.DayQuil Cold & Flu is a combination product that contains the active ingredients acetaminophen, dextromethorphan, and phenylephrine. It temporarily treats symptoms of the common cold and flu. ….

Sudafed PE. Mucinex. Sinex. Dayquil. Benadryl. Tylenol sinus. Advil sinus congestion. Lusonal. Many store brands such as Equate, Kroger, Walgreens, CVS, etc.Mucinex extended-release tablets; Diabetic Tussin DM (also contains dextromethorphan) Robitussin Sugar-free, Dye-free, Cough+Chest Congestion DM (also contains dextromethorphan) Drinking plenty of water, including warm water, can also help thin mucus and relieve congestion. What to take for general cold symptoms. Related QuestionsMucinex side effects. Get emergency medical help if you have signs of an allergic reaction to Mucinex: hives; difficult breathing; swelling of your face, lips, tongue, or throat. Common side effects of Mucinex may include: stomach upset. This is not a complete list of side effects and others may occur.Mucinex (guaifenesin) omeprazole; prednisone; Synthroid (levothyroxine) tramadol; Tylenol (acetaminophen) Vitamin B12 (cyanocobalamin) Vitamin D3 (cholecalciferol) Zofran (ondansetron) Zoloft (sertraline) Zyrtec (cetirizine) Z-Pak disease interactions. There are 4 disease interactions with Z-Pak (azithromycin) which include:Mucinex is an expectorant that helps loosen mucus while providing relief from chest congestion. Theraflu is a multi-symptom cold and flu medication that addresses various symptoms like fever, headache, congestion, and coughing. Both Mucinex and Theraflu come in different formulations for specific symptoms or time of day usage.There are 9 disease interactions with diltiazem which include: aortic stenosis. bradyarrhythmia/AV block. cardiogenic shock/hypotension. coronary artery disease. liver disease. CHF/AMI. accessory AV tracts. ventricular tachycardia.Mucinex (Guaifenesin) Mucinex is an expectorant that can help to relieve chest congestion, ease respiration and reduce post-nasal drip. Mucinex has very few drug interactions and is safe to use with Paxil. Zinc/Vitamin C. Zinc and vitamin C do not interact with Paxil. They are considered safe to use. Cold Meds To Be Cautious With NSAIDsDayQuil Severe contains all the ingredients in 'original' DayQuil and also adds in the expectorant guaifenesin (the active ingredient in Mucinex). NyQuil is similar to DayQuil, as it is intended for use as a cough/cold medication. However, it contains a sedating antihistamine to help individuals sleep at night. Dayquil with mucinex, Normally, you can. But keep the following tips in mind beforehand. Don't take Mucinex and Sudafed when you are using MAO inhibitors in the last 14 days, such as selegiline, rasagiline, phenelzine, etc. When taken together, serious drug interactions can occur, leading to side effects and complications. Don't drink alcoholic beverages or ..., Mucinex DM by Adams Respiratory Therapeutics Active Ingredients (per extended release tablet): DXM HBr extended release 30 mg, Guaifenesin 600 mg. PediaCare Children's Long-Acting Cough Liquid by McNeil-PPC Active Ingredients (per teaspoonful/5mL): DXM HBr 7.5 mg., A few medicines that you can get without a prescription (called over-the-counter or OTC medicines) can potentially increase seizures in people with epilepsy. They could even trigger a seizure for the first time. The most common OTC medicine that could do this is probably diphenhydramine, the active ingredient in medicines like Benadryl, which ..., Answer. Yes, oral antihistamines can be used in conjunction with nasal antihistamines, although current data suggests that the combination of the two is no more effective than using a nasal antihistamine as the sole treatment. Below, we discuss the data available in regard to whether or not there is benefit in combining an oral antihistamine ..., Using buPROPion and nicotine together can cause an increase in blood pressure. This can cause dizziness, confusion, uneven heartbeats, and chest pain. If you take both medications together, tell your doctor if you have any of these symptoms. You may need a dose adjustment or need your blood pressure checked more often if you take both medications., Yes, you can take Benadryl (diphenhydramine) and Dayquil together as they do not interact. However, most people take Dayquil to alleviate cough/cold symptoms without sedation, and taking Benadryl would defeat that purpose (since Benadryl tends to cause drowsiness)., Mucinex®, Robitussin® (plain) Combination products with dextromethorphan are also allowed: Robitussin DM®, Tab Tussin DM™, Coricidin HBP Chest Congestion and Cough® , Equate Tussin DM® X AVOID decongestants like pseudoephedrine (Sudafed®) or phenylephrine (Sudafed PE®) Constipation Docusate, Senna, Psyllium, Bisacodyl, Polyethylene glycol, There are 105 drugs known to interact with Alavert (loratadine), along with 1 disease interaction, and 1 alcohol/food interaction. Of the total drug interactions, 94 are moderate, and 11 are minor., There are many Mucinex equivalents in France, including Mucomyst and Rhinathiol. It's useful in the case of a wet cough. 8. Sudafed . A similar formulation of drugs as those found in DayQuil, NyQuil, and Alka Seltzer, this antihistamine is known as Humex in France. Humex is both an antihistamine and a vasoconstrictor, meant to help the common ..., 11. Sort by: bubblegumpuma. • 7 yr. ago. Don't listen to the last two comments, DayQuil and Mucinex have no antihistamines in them. The ingredient of concern here is the acetominophen in the DayQuil. Drinking + that = liver damage possibility. If you want to be safest, do not take DayQuil. 10., It is especially important that you do not use any medicine with dextromethorphan if you take a selective serotonin reuptake inhibitor (SSRI) such as Prozac (fluoxetine), Zoloft (sertraline), or Lexapro (escitalopram). The combination can cause a serious interaction called serotonin syndrome. Like other antidepressants, monoamine oxidase ..., The short answer is that it’s generally safe to take Mucinex and Dayquil together, as long as you follow the recommended dosage guidelines for each medication. However, it’s …, Delsym has an average rating of 3.3 out of 10 from a total of 240 ratings on Drugs.com. 16% of reviewers reported a positive effect, while 68% reported a negative effect. Mucinex has an average rating of 6.1 out of 10 from a total of 152 ratings on Drugs.com. 54% of reviewers reported a positive effect, while 35% reported a negative effect., Terbinafine disease interactions. There are 6 disease interactions with terbinafine which include: liver disease. neutropenia. depression. immunosuppression. lupus. renal dysfunction., Answer. Yes, antihistamines and mucus relief products (e.g. expectoranst such as Mucinex) are safe to take together. They are often beneficial to combine as they can work synergistically together. Antihistamines can help to dry mucus secretions and prevent post-nasal drip. Expectorants thin secretions and reduce their adhesiveness in the ..., Dr Martin's camera pans to an array of branded products to illustrate her point - NyQuil, DayQuil and Mucinex. These products claim to ease headaches, congestion, body aches and sore throats. ..., Can you take dayquil with norco? Updated: 9/7/2023. Wiki User. ∙ 12y ago. Best Answer. Not sure., Sleep Aids. Shop our selection of medicines and treatments and save with your FSA account. Make the most of your savings benefits today., Back to the days of notorious pardoner-in-chief Gerald Ford. Donald Trump has developed an appetite for one of the unchecked powers of the US presidency: the pardon. After 17 month..., If needed, you could even take both Mucinex and Delsym at the same time as Tamiflu. As discussed earlier, these cough medications don’t interact with Tamiflu. Just read all OTC labels carefully. Some products in the Mucinex and Delsym lines contain other ingredients that might be in other products you’re taking. 10., The answer is yes, but caution should be exercised. Dayquil and Mucinex are over-the-counter medications that alleviate cold and flu symptoms. Dayquil contains ingredients such as acetaminophen for pain relief, dextromethorphan for cough suppression, and phenylephrine as a decongestant. On the other hand, Mucinex is known for its active ..., The Moleskine won the battle of the fancy designer notebooks by a mile last month here at Lifehacker. If you want to measure your existing Moleskine addiction—or just get an intro ..., When I get a cold, I armor up with DayQuil so I can do my job without drowning in mucus. Now my killjoy co-worker says taking cold medicine actually makes you sick longer. ... Speaking of Mucinex ..., Mucinex DM Pill Images. Note: Multiple pictures are displayed for those medicines available in different strengths, marketed under different brand names and for medicines manufactured by different pharmaceutical companies. Multi-ingredient medications may also be listed when applicable. What does Mucinex DM maximum strength look like?, Drugs.com provides accurate and independent information on more than 24,000 prescription drugs, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. Data sources include Micromedex (updated 1 Apr 2024), Cerner Multum™ …, Company Announcement. FOR IMMEDIATE RELEASE - January 24, 2024 - Warren, NJ, Haleon is voluntarily recalling eight lots of Robitussin Honey CF Max Day Adult and Robitussin Honey CF Max ..., Bromfed DM, brompheniramine / dextromethorphan / pseudoephedrine, Mucinex D, Vicks Dayquil Cold & Flu Relief, Vanacof Images Capmist DM dextromethorphan 30 mg / guaifenesin 400 mg / pseudoephedrine 30 mg (CAP DM) View larger images, Mucinex DM 12Hr 1200mg Maximum Strength Cough Medicine For Adults, Cold And Cough Medicine for Excess Mucus Relief, Guaifenesin & Dextromethorphan HBr Chest Decongestant for Adults, 42ct Tablets ... Sore Throat, Aches and Pains, Fever | Compare to Dayquil (Daytime, 48 Count) 48 Count (Pack of 1) 4.7 out of 5 stars. 2,756. $8.99 $ 8. 99 ($0.19 ..., 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., The Food and Drug Administration's independent Nonprescription Drugs Advisory Committee Sept. 12 by unanimous vote declared oral phenylephrine ineffective as a decongestant. Phenylephrine is a common active ingredient in over-the-counter medications sold under the Nyquil, Tylenol, Advil, Robitussin, Sudafed and Benadryl brands, to name a few., Summary: Drug interactions are reported among people who take Dayquil and Mucinex. Common interactions among females include sinusitis and sleep apnoea syndrome. …, Common Side Effects: Both Mucinex and Dayquil can cause similar side effects such as drowsiness, dizziness, dry mouth, and nausea. Combining these medications may increase the likelihood and severity of these side effects. 3. Overlapping Functions: While Mucinex helps with mucus reduction and clearing airways, Dayquil …, DEAR MAYO CLINIC: I have used decongestants over the years when I'm ill, but my doctor recently said that I should be cautious because nonprescription decongestants can have significant side effects.Is this true? ANSWER: While many people rely on nasal decongestants to help ease nasal symptoms of a cold or flu, these medications can sometimes cause more harm than good, especially if used ...