Sudafed with nyquil

Phenylephrine (brand name: Sudafed PE) Pseudoephedrine (brand name: Sudafed) Nose sprays and irrigations; Sore Throat. Throat lozenges (brand name: Halls, Cepaco) Sore throat sprays (brand name: Chloraseptic) Multi-Symptom Products. Nyquil Cold and Flu Relief; Robitussin DM; Sudafed Cold and Sinus; Theraflu Severe Cold and Congestion; Tylenol ...

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™ (updated 21 Apr 2024), ASHP (updated 10 Apr 2024) and others.A Food and Drug Administration advisory panel concluded last week that the decongestant phenylephrine, contained in many over-the-counter cold remedies — including some formulations of popular brands like Sudafed, Tylenol, and Nyquil — is ineffective when taken orally. The finding potentially upsets a significant part of the over-the-counter …TikToker Robbie Zukowski (@just_me_robble) made some waves with a viral video he posted two days ago pointing out that many stores are pulling popular cold medications such as Sudafed, DayQuil ...Beta blockers and angiotensin-receptor blockers. These blood pressure and migraine-prevention medications are known to cause a five- to seven-pound weight gain, says Dr. Agarwal. In fact, one 2016 ...Answers. Sudafed is a brand name product available over the counter to treat symptoms of the common cold, sinusitis and nasal congestion. There are several formulations that contain different active ingredients including pseudoephedrine, phenylephrine, oxymetazoline, xylometazoline, ibuprofen, caffeine, guaifenesin and paracetamol (acetaminophen).Potential benefits of taking NyQuil after Sudafed PE. Taking NyQuil after Sudafed PE have some potential benefits when you're dealing with multiple cold and flu symptoms. NyQuil can help manage symptoms like fever, pain, allergy symptoms, and cough (1). Phenylephrine can help with nasal congestion (2). Together these meds can control various ...If it contains alcohol as ingredient and you ingested the medication it will show as if you had been drinking. Explain to the authorities as you have done here, take the medication with you and show them. I do not know what else you can do besides getting a Dr.´s certificate stating you were prescribed NyQuil and currently under treatment for ...Taking more than you are told may raise your chance of very bad side effects. Do not take Nite-Time Cold/Flu (acetaminophen, dextromethorphan, doxylamine, and pseudoephedrine capsules) for longer than you were told by your doctor. Avoid driving and doing other tasks or actions that call for you to be alert until you see how Nite-Time Cold/Flu ...

We would like to show you a description here but the site won’t allow us.Decongestants can interfere with the effectiveness of certain blood pressure, epilepsy, heart, diabetes or thyroid medications, but also may affect the chronic condition itself. If you have any of the above …Vyvanse disease interactions. There are 10 disease interactions with Vyvanse (lisdexamfetamine) which include: cardiovascular. glaucoma. agitation. cardiac disease. hypertension. psychiatric disorders. substance abuse.Pseudoephedrine & milk supply: Thomas Hale Ph. D., a renowned breastfeeding pharmacologist (Breastfeeding Pharmacology), notes that "breastfeeding mothers with poor or marginal milk production should be exceedingly cautious in using pseudoephedrine" and that "it is apparent that mothers in late-stage lactation may be more sensitive to ...Side effects such as dry mouth, constipation, and confusion may be more likely in older adults. Common side effects of acetaminophen, dextromethorphan, doxylamine, and pseudoephedrine may include: drowsiness; constipation, diarrhea, upset stomach, vomiting; or. feeling restless or excited (especially in children).The F.D.A. will make its own decision on whether to remove medications containing the ingredient, phenylephrine, which is found in products like Sudafed P.E., NyQuil Severe Cold & Flu and Tylenol ...Sipping hot soup, taking a hot bath, breathing in steam, and using a dehumidifier may help. In some cases, sinus infections need medical treatment, including medicines such as antibiotics, nasal washes, and antihistamines. Chronic sinus problems may need further treatment, such as surgery to open sinus passages and allow adequate drainage.

Sudafed (contains pseudoephedrine) - false positive for amphetamines, meth and ecstasy. Nyquil, false positive for amphetamines, heroin, opiates, morphine, meth, ecstasy, methadone. If you have your doctor´s prescription take it with you, and let them know before the test you are on this medication. Best of luck and take care. Votes: +3. IN.Typically, Nyquil is taken at night before you go to bed, and Dayquil is taken during the day. Dayquil is similar to Nyquil, except Nyquil contains doxylamine, which causes sleepiness. And unlike most Nyquil products, Dayquil contains phenylephrine. Phenylephrine is a nasal decongestant that helps with nasal and sinus congestion and pressure.Pseudoephedrine. Ephedrine. Phenylephrine. Naphazoline. Oxymetazoline. Also, check medicine labels for sodium content. Too much salt can raise blood pressure. If you have high blood pressure and need to treat cold symptoms, try these tips: Choose a cold medicine that's made for people with high blood pressure.3 days ago · Paxil is an SSRI (selective serotonin reuptake inhibitor) that does have a few drug interactions and considerations with over-the-counter medication that are important to be aware of. There are many that are safe to take. They include: Antihistamines (e.g. Claritin, Allegra, Benadryl, Zyrtec etc...) Tylenol (acetaminophen) Mucinex (guaifenesin ...

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It works on the brain to suppress your appetite. But it can also cause other stimulant effects, like high blood pressure and fast heartbeat. Phentermine can interact with pseudoephedrine, as can other appetite suppressants. This interaction can cause your blood pressure and heart rate to increase.Painkillers containing ibuprofen (like Advil) are Moment, Nurofen, and Brufen. Those with acetaminophen (like Tylenol, also known as paracetamol) are Tachipirina (pronounced tah|kee|pee|REE|nah) and Efferalgan. The ones containing naproxen (like Aleve) are Naprosyn, Momendol, and Naproxene. Aspirin is "aspirina" in Italian.Examples of commonly used decongestants include phenylephrine and pseudoephedrine.Often these ingredients are included in multisystem cold and flu preparations. Due to the nature of medications, it is important to always read label ingredients for medications and warnings on boxes to know what you are taking and whether it is the correct ...3. Antifungal medications . Certain oral or intravenous antifungal medications could cause your birth control pills to be less effective. Gris-peg (griseofulvin) —used to treat jock itch, ringworm, or athlete's foot—particularly can interact with oral contraceptives.Women should use another form of birth control for up to one month after the last dose of griseofulvin.Sep 12, 2023 · Phenylephrine — found in drugs including Sudafed PE, Vicks Nyquil Sinex Nighttime Sinus Relief and Benadryl Allergy Plus Congestion — is the most popular oral decongestant in the United States ... OTC Decongestants to Avoid: Some OTC decongestants tablets, capsules and nasal sprays to avoid if you have atrial fibrillation include ... DayQuil HBP Cold & Flu, NyQuil HBP Cold & Flu and Vicks VapoInhalers). One possible exception are those decongestant products with the active ingredient phenylephrine (e.g. Sudafed PE, …

NyQuil Cough omits the acetaminophen but has the dextromethorphan and doxylamine succinate to cut down on your coughing. DayQuil has acetaminophen like its more famous kin and the phenylephrine ...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™ (updated 21 Apr 2024), ASHP (updated 10 Apr 2024) and others.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™ (updated 21 Apr 2024), ASHP (updated 10 Apr 2024) and others.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!Sudafed: Congestion and pressure in the head, nose, and ears: Lightheadedness, wakefulness, nervousness, restlessness (jittery and shaky), increased blood pressure and heart rate; irregular heartbeat:First, Sudafed can increase the risk of drowsiness and dizziness, and taking Nyquil can amplify these effects. It's important to be aware of how these medication interactions might affect you before driving or operating machinery. Second, Sudafed can also increase blood pressure, and Nyquil may make this effect worse.Prednisone, a corticosteroid commonly prescribed for a wide variety of indications, is considered safe with most cough and cold medications. However, there is considered to be an interaction between prednisone and NSAIDs (non-steroidal anti-inflammatory drugs) and the use of both together is generally recommended to be avoided.Get ratings and reviews for the top 12 pest companies in Hillcrest Heights, MD. Helping you find the best pest companies for the job. Expert Advice On Improving Your Home All Proje...In this blog, I discuss my journey as a physician-scientist trainee to provide some insights to aspiring physician-scientists and in the hopes of encouraging others to consider pur...

Yes, you can take Nyquil and Sudafed together, but it's important to follow certain guidelines to ensure your safety and avoid potential side effects. Here are some key points to consider: Check the ingredients : Both Nyquil and Sudafed contain active ingredients that may overlap. It's essential to read the labels and check for any duplications ...

How NyQuil, the over-the-counter cold medicine of choice for millions of sniffling people, innovated by combining a bunch of drugs together in a novel way. ... records, either. Codeine syrup, often used as a cough suppressant, has a reputation for abuse in the modern day. And Sudafed, with its active ingredient of pseudoephedrine, gained such a ...Find information on pseudoephedrine use, treatment, drug class and molecular formula. Skip to main content. ... Brand names: Children's Nyquil, Rhinosyn-DM, Vicks 44M Pediatric, Creomulsion Cough/Cold/Allergy, Creomulsion Pediatric Drug class: upper respiratory combinations.DePalma co-authored guidelines released in 2017 by the American Heart Association and American College of Cardiology focusing on the management of high blood pressure in adults. Both decongestants and non-steroidal anti-inflammatories (NSAIDs), found in many cold medicines, were listed as medications that could increase …Advil multi symptom cold and flu; has ibuprofen, decongestant, and an anti histamine to control nose running. And it has no dextromethorphan that would be dangerous for someone on Zoloft. It's a life saver. My doctor told me to take DayQuil but not NyQuil. Don't take nsaids and dxm, I think you can take paracetamol.Pseudoephedrine taken orally will have systemic effects, therefore not only will you have vasoconstriction in the nose, but also throughout the peripheral nervous system. Furthermore, beta activation (beta-1) leads to increase heart rate (increased Cardiac Output= increased BP). ... Day/Nyquil both use drugs evaluated by the FDA as effective in ...These products contain ibuprofen plus a nasal decongestant to provide relief for symptoms including: headache, fever, minor body aches and pains, sinus pressure, and nasal congestion. For further questions concerning your use of Advil products, please speak with a healthcare provider. If your symptoms continue to persist or get worse, please ...Keep in mind 1 level teaspoon equals 5 ml and that ½ teaspoon equals 2.5 ml. ADULT DOSE. 50 mg. HOW OFTEN. Repeat every 6 hours as needed. CHILDREN'S BENADRYL FASTMELTS. Each fastmelt tablet equals 12.5 mg. They are dosed the same as chewable tablets. Dr. Natalie in Yorkville, Illinois practices Integrative Medicine that includes traditional ...The concern with using NyQuil and Zyrtec at the same time is the potential for additive side effects from each, which could include: Drowsiness. Dry mouth. Dry eyes. Sedation. This interaction, for most people, wouldn't be considered too serious, but it is a drug interaction nonetheless, so is important to be aware of.

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However, the same document noted that the OTC alternative to phenylephrine, pseudoephedrine, is only available "behind the counter" by asking a store employee. This is because the drug can be used ...Treatment for Colds. Since most colds are caused by a virus, taking antibiotics won't help you feel better. Antibiotics only treat infections that are caused by bacteria such as strep throat or whooping cough. A good way to treat a cold is by getting enough rest. Adults should get about 7 to 9 hours of sleep every night.It's found in common medications like Sudafed PE (not regular Sudafed), Theraflu, Tylenol Sinus, Advil Congestion, NyQuil Severe Cold and Flu products and more.The combination of antidepressants and cold medicine may increase serotonin levels, which could cause Serotonin Syndrome. This syndrome causes high blood pressure, change in body temperature, issues with muscle movement, and mood changes. Cold medicine also may intensify the typical side effects of antidepressants.Best option: Antihistamine. Less-sedating options: cetirizine (Zyrtec); loratadine (Claritin) More-sedating options: chlorpheniramine (Chlor-Trimeton); diphenhydramine (Benadryl) For a stuffy nose, oral decongestants—including pseudoephedrine, phenylephrine and phenylpropanolamine—can increase both blood glucose and blood pressure and ...Dr. Heidi Fowler answered. Specializes in Psychiatry. Not enough info: There are many types of Nyquil and many types of sudafed PE (each containing different drugs). Ther are moderate potential side effects btwn diphenhydramine & doxylamine (Sudafed PE Nighttime Cold). Also moderate potential for dextromethorphan & diphenhydramine.The standard for cold relief is "liquid green death"—or, rather, NyQuil. If you don't feel like sitting in a coma for the better half of the day (or just hate NyQuil), try food web...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™ (updated 21 Apr 2024), ASHP (updated 10 Apr 2024) and others.NyQuil and Advil can be safely together, but it may not be necessary as NyQuil already contains the pain reliever acetaminophen (which is the active ingredient in Tylenol).NyQuil contains 3 active ingredients (NyQuil Severe contains 4):. acetaminophen (pain reliever/fever reducer); doxylamine (sedating antihistamine); dextromethorphan (cough suppressant) ...Best option: Antihistamine. Less-sedating options: cetirizine (Zyrtec); loratadine (Claritin) More-sedating options: chlorpheniramine (Chlor-Trimeton); diphenhydramine (Benadryl) For a stuffy nose, oral decongestants—including pseudoephedrine, phenylephrine and phenylpropanolamine—can increase both blood glucose and blood pressure and ...Two commonly used OTC options are Sudafed and Nyquil. But you might be wondering, “Can I take both Sudafed and Nyquil for the flu?” It seems like we’ve all … ….

Side effects such as dry mouth, constipation, and confusion may be more likely in older adults. Common side effects of acetaminophen, dextromethorphan, doxylamine, and pseudoephedrine may include: drowsiness; constipation, diarrhea, upset stomach, vomiting; or. feeling restless or excited (especially in children).Combining Sudafed and NyQuil could lead to dangerous cardiovascular effects if someone already has hypertension or heart-related issues. Patients with heart conditions or high blood pressure should exercise caution and consult a healthcare professional before using medications.For now, it looks like Ola can have its cake and eat it too. Uber Eat’s abrupt disappearance from India’s food-delivery scene yesterday (Jan. 21) has put all eyes on its rival, Ola...If NyQuil and Sudafed are taken simultaneously, the stimulant effect of Sudafed will compete with the NyQuil antihistamine's drowsy effect. The results are unexpected and likely to be unpleasant; there could be an energized feeling, drowsiness, or somewhere between them.Claritin-D disease interactions. There are 7 disease interactions with Claritin-D (loratadine / pseudoephedrine) which include: cardiovascular disease. renal/liver disease. GI narrowing. PKU.Decongestants such as pseudoephedrine , which can only be purchased behind the counter in the pharmacy, and phenylephrine , decrease the fluid in the nasal passages and allow for easier breathing. Take OTC antihistamines; Antihistamines dry up mucous membranes of the nose and other areas such as mouth and eyes.Both Mucinex and NyQuil are brands that make several products. Many of their products already contain ibuprofen and pseudoephedrine, the active ingredients in Advil Cold and Sinus. Some also contain phenylephrine, a medication that works very similarly to pseudoephedrine. Taking Advil Cold and Sinus (ibuprofen / pseudoephedrine) with other ...Nyquil is a medication that is used to treat cold and flu symptoms. It can be bought over the counter and is relatively safe to take. However, there are some interactions that can occur if Nyquil is taken with other medications, including sleep aids. Sleep aids are typically not recommended for use with Nyquil. Sudafed with nyquil, Key takeaways: Sudafed (pseudoephedrine) and Zyrtec (cetirizine) are both over-the-counter (OTC) medications that can help with allergy symptoms. They work in different ways: Sudafed is a decongestant, and Zyrtec is an antihistamine. You can take Sudafed and Zyrtec together, as long as it's safe for you to take either one alone., 6.25 mg of doxylamine. 5 mg of phenylephrine. The children's dosage for NyQuil Severe Honey is as follows: Ages 6 to 11: Give 15 mL by mouth every 4 hours as needed. Don't give more than 4 doses (60 mL) in 24 hours. Ages 4 to 5: Speak to your child's healthcare provider before giving., 6.25 mg of doxylamine. 5 mg of phenylephrine. The typical adult dosage of NyQuil Severe is 2 pills or 30 mL by mouth every 4 hours as needed. Don’t take more than 4 doses (8 pills or 120 mL) in 24 hours. It’s important to note that the VapoCOOL version contains 10% alcohol, whereas the other flavors are alcohol free., 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!, NyQuil Cough omits the acetaminophen but has the dextromethorphan and doxylamine succinate to cut down on your coughing. DayQuil has acetaminophen like its more famous kin and the phenylephrine ..., Nyquil ingredients. NyQuil is an over-the-counter non-prescription drug used to treat cold, cough, allergies and flu symptoms. It contains four main components: acetaminophen, doxylamine, dextromethorphan and pseudoephedrine. These combined components help relieve sick patients of their symptoms and provide a sleeping aid to them., NyQuil, designed for nighttime use, helps with symptoms like cough, runny nose, and fever, thanks to ingredients like acetaminophen, dextromethorphan, and doxylamine. DrWinders, Expert. Sudafed, containing pseudoephedrine, is a decongestant that eases nasal congestion by narrowing blood vessels. Customer., Medications containing Phenylephrine or Pseudoephedrine (decongestants) are, among others: Sudafed; Tylenol Cold Multi-Symptom; Alka-Seltzer Plus; NyQuil; Robitussin Multi-Symptom; Make sure not to mix medications containing phenylephrine, pseudoephedrine, or other decongestants. Look at the active ingredients to ensure your safety., The federal tax agency received 700,000 applications for just 500 advertised positions With Nigeria’s economy, the largest in Africa, mired in its first recession in decades, unemp..., Two commonly used OTC options are Sudafed and Nyquil. But you might be wondering, “Can I take both Sudafed and Nyquil for the flu?” It seems like we’ve all heard different things growing up, especially advice our mothers gave us, which may or may not be based in science., can i take claritin d 12 hour (pseudoephedrine and loratidine) with nyquil?: Not recommended: both have decongestants in them so I would not. Clar., Nasacort disease interactions. There are 4 disease interactions with Nasacort (triamcinolone nasal) which include: hyperadrenocorticism. infections. ocular herpes simplex. ocular toxicities., 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 ..., Typically, Nyquil is taken at night before you go to bed, and Dayquil is taken during the day. Dayquil is similar to Nyquil, except Nyquil contains doxylamine, which causes sleepiness. And unlike most Nyquil products, Dayquil contains phenylephrine. Phenylephrine is a nasal decongestant that helps with nasal and sinus congestion and pressure., Until 2006, NyQuil Cold/Flu Multisymptom Relief and NyQuil Sinus contained pseudoephedrine (30 mg/15 mL), a nasal decongestant that also formed the active ingredient in Sudafed. Following the passage of the Combat Methamphetamine Epidemic Act in 2006, in the United States all pseudoephedrine-containing medications must be kept behind a pharmacy ..., Sipping hot soup, taking a hot bath, breathing in steam, and using a dehumidifier may help. In some cases, sinus infections need medical treatment, including medicines such as antibiotics, nasal washes, and antihistamines. Chronic sinus problems may need further treatment, such as surgery to open sinus passages and allow adequate drainage., Sudafed is a decongestant that contains pseudoephedrine, while Nyquil is a combination medication that typically includes acetaminophen (a pain reliever), dextromethorphan (a cough suppressant), and doxylamine succinate (an antihistamine). While these medications treat different symptoms, they may overlap in certain areas., September 12, 2023 · 3 min read. 5. Phenylephrine, the key drug used in leading decongestant brands such as Sudafed, Allegra and Dayquil, is nothing more than a placebo when taken orally, according to the latest research from a Food and Drug Administration panel. Advisers to the FDA voted on Tuesday against the effectiveness of the drug, which ..., pseudoephedrine (Sudafed®, Actifed®, Contrex®, and Nyquil®) phenylephrine (Neo-Synephrine®) ephedrine (also known as “ma huang”) or any kind of appetite suppressant (such as Metabolife®) One of the biggest dangers to those with heart problems is sodium which causes your body to retain extra fluid. , Sudafed and Methotrexate . ... DayQuil, which contains a mix of acetaminophen, dextromethorphan, and phenylephrine, and NyQuil, which is made from acetaminophen, dextromethorphan, and doxylamine ..., 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 cold., Potential benefits of taking NyQuil after Sudafed PE. Taking NyQuil after Sudafed PE have some potential benefits when you’re dealing with multiple cold and flu symptoms. NyQuil can help manage symptoms like fever, pain, allergy symptoms, and cough (1). Phenylephrine can help with nasal congestion (2). Together these meds can control various ..., 6.25 mg of doxylamine. 5 mg of phenylephrine. The typical adult dosage of NyQuil Severe is 2 pills or 30 mL by mouth every 4 hours as needed. Don’t take more than 4 doses (8 pills or 120 mL) in 24 hours. It’s important to note that the VapoCOOL version contains 10% alcohol, whereas the other flavors are alcohol free., Yes, you can take Nyquil and Sudafed together, but it's important to follow certain guidelines to ensure your safety and avoid potential side effects. Here are some key points to consider: Check the ingredients : Both Nyquil and Sudafed contain active ingredients that may overlap. It's essential to read the labels and check for any duplications ..., Can sudafed, and inhaler, and nyquil make you test positive for meth on a urine test? ... Sudafed was from behind counter and this was taken twice a day. Updated 27 Oct 2017 2 answers. How many milligrams of pseudoephedrine in sudafed 96 count 30mgs hci? Updated 14 April 2015 3 answers., Ars Praefectus. 21y. 3,096. Dec 22, 2005. #3. AFAIK, they're making a brand of NyQuil without pseudoephedrine, but they are still making the regular brand with it. Just look around a little as I'm ..., Decongestants, such as pseudoephedrine (Sudafed) and phenylephrine, are medications used to relieve nasal congestion by narrowing blood vessels in the nasal passages. However, they can have adverse effects on COPD patients, as they may also constrict blood vessels in the lungs, making it harder to breathe. ... Nyquil; Theraflu; Robitussin; 10 ..., 3 doctors weighed in across 2 answers. i took nyquil about an hour ago but still really congested is it ok to take sudafed too?: Yes but migh affect: Yes but it might effect your sleep. Pseudoephedri., little or no urination; or. liver problems --nausea, upper stomach pain, itching, tiredness, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes). Side ..., You can always make a case to regularly retool your account - and this year, it's especially important. Normally I rebalance my 401(k) at the… By clicking "TRY IT", I agree ..., Over-the-counter (OTC) sinus infection drugs treat sinusitis or other sinus-related infections to relieve fever, runny nose, itchy throat, or other symptoms. However, with many options, such as antihistamines and decongestants, users should know what differentiates these drugs., NyQuil is a popular over-the-counter (OTC) cold and flu medication. Learn about the potential dangers, risks, and side effects when drinking alcohol while taking NyQuil in this article from GoodRx. ... Pseudoephedrine (Sudafed): Like phenylephrine, pseudoephedrine is used to relieve a stuffy nose. But combining pseudoephedrine with alcohol may ..., Doxylamine, the sedating antihistamine in Nyquil that causes drowsiness, is associated with worsening symptoms from acid reflux. Doxylamine is similar to Benadryl and is classified as a first generation antihistamine. First generation antihistamines have fairly strong anticholinergic effects, which includes drying of bronchial secretions and ...