Allergic reaction to dayquil

Phenylephrine is found in common drugs including Sudafed PE, Benadryl Allergy Plus Congestion, Vicks Sinex, Mucinex, Dayquil, Tyenol Sinus, and Advil Sinus Congestion. "In my experience, patients who have relied on these over-the-counter medications to alleviate their allergy symptoms have not found relief," said Roberto …

Allergic reaction to dayquil. With allergic rhinitis, the overreaction of the immune system causes the passages to swell. This leads to sinusitis (sinus inflammation) and the development of sinus pain and pressure. Symptoms of a sinus headache can range from mild to severe and typically include: Pain, pressure, and fullness between the eyes and/or behind the cheeks or forehead.

Warnings. One ingredient in this product is acetaminophen. Taking too much acetaminophen may cause serious (possibly fatal) liver disease. Adults should not take more than 4000 milligrams (4 grams ...

What are the side effects of Dayquil Severe Cold & Flu (Oral)? Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue ...Hey everyone, and welcome back to Chain Reaction. In our Chain Reaction podcast this week, Anita and I chatted with Slow Ventures’ Jill Gunter on why there are so many dang blockch...In rare cases, Dayquil can cause an allergic reaction. Symptoms of an allergic reaction can include hives, itching, swelling, or difficulty breathing. If you experience any of these symptoms after taking Dayquil, it is important to seek medical attention immediately.Vicks Dayquil Severe Cold/Flu contraindications. You should not use this medicine if you have had an allergic reaction to acetaminophen (Tylenol®), or to any other ingredients in the medicine you are using. Do not give any over-the-counter (OTC) cough and cold medicine to a baby or child under 4 years old.The short answer is yes – it is generally considered safe to take allergy medicine with DayQuil, especially short-term. However, there are a few precautions regarding ingredients that are important to know. DayQuil is an over-the-counter cough and cold medication that contains acetaminophen (Tylenol) as a pain and fever reducer, plus ...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.ICD 10 code for Adverse effect of other anti-common-cold drugs, initial encounter. Get free rules, notes, crosswalks, synonyms, history for ICD-10 code T48.5X5A.

Nyquil and dayquil will help the systemic reaction, and the stress! Get a little loopy, you deserve a break. ... I had an all over body allergic reaction (urticaria) a few days after my second jab, doctors said it could be related to it, was on antihistamines and prednisolone for 2 weeks and tapered off, which to me makes sense as it’s an ...A recent meta-analysis of 259 patients undergoing oral challenge reported the prevalence of acetaminophen hypersensitivity reaction to be 10.1% in adult and 10.2% in pediatric patients. (1) Acetaminophen is classified as a NSAID and a weak cyclooxygenase inhibitor. There are also reports identifying reactions to acetaminophen in aspirin ... DayQuil COMPLETE + Vicks VapoCOOL Cold & Flu provides fast and effective, non-drowsy relief for 12 cold and flu symptoms, with a cooling flavour sensation that will ripple through your senses. DayQuil COMPLETE + Vicks VapoCOOL relieves nasal congestion and pain, chest congestion, cough due to cold, cough with phlegm, sore throat pain, headache ... Text-message reactions—a practice iPhone and iPad owners should be familiar with, where you long-press a message to append a little heart or thumbs up/thumbs down to something—are ...display only. muscle aches. tiredness. headache. shivering. fever. stomach pain. nausea. These side effects may affect your ability to do daily activities, but they should go away on their own in a few days.STANDARD SIZE. 236 ml. DayQuil™ Complete Cold and Flu Symptom Relief Liquid Medicine helps relieve cough, fever, sore throat, headache, and minor aches and pains to help you manage your day.Jun 27, 2018 ... “[Dextromethorphan] can very much cause people to feel very loopy,” he says. “It can cause dizziness, confusion, cognitive slowing, drowsiness, ...

Yes, DayQuil can have adverse effects just like any other medication. Symptoms that are frequently experienced include nausea, anxiety, dizziness, and trouble sleeping. Although they are uncommon, allergic reactions and extreme dizziness might have serious adverse effects. If you encounter serious or enduring adverse effects, consult a physician.Side Effects What are the side effects of Dayquil Cold & Flu (Oral)?. Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of ...Summary. 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 ...Yes, It is safe to take both Claritin and DayQuil together as there is no interaction between the two medications. Claritin (loratadine) is a second-generation antihistamine used to treat seasonal allergies and urticaria (hives). DayQuil Cold & Flu (acetaminophen; dextromethorphan; phenylephrine) is a combination product used to treat fever ...Tell all of your health care providers that you take DayQuil Multi-Symptom Cold/Flu (acetaminophen, dextromethorphan, and pseudoephedrine capsules and tablets). 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 ...An allergen is a substance that can cause an allergic reaction. In some people, the immune system recognizes allergens as foreign or dangerous. As a result, the immune system react...

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Summary. 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 ... DayQuil Severe Cold and Flu may also be used for purposes not listed in this medication guide. Side Effects Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.In rare cases, some individuals may experience allergic reactions to Dayquil Pills. Symptoms of an allergic reaction can include rash, itching, swelling, severe dizziness, or trouble breathing. If you suspect you are having an allergic reaction to Dayquil Pills, seek immediate medical attention.Side Effects. See also Warning section. Dizziness, drowsiness, headache, nausea, nervousness, or trouble sleeping may occur. If any of these effects last or get worse, contact...

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.Fleas are small insects that feed on warm-blooded humans and animals. Most people may not even know fleas have invaded their homes. So, it is necessary to recognize the signs and s...Fleas are small insects that feed on warm-blooded humans and animals. Most people may not even know fleas have invaded their homes. So, it is necessary to recognize the signs and s...DayQuil Severe Cold and Flu may also be used for purposes not listed in this medication guide. Side Effects Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.sore throat. headaches. congestion. cough. sinus pressure. minor body aches. This medication works quickly to provide daytime relief for colds and flu. Temporary relief from these conditions lasts ...Apr 2, 2023 · Allergic Reactions. Allergic reactions to Dayquil and Melatonin are rare but possible, especially if you have a history of allergies. Signs of an allergic reaction can include hives, itching, swelling, difficulty breathing, and chest tightness. DayQuil Cold & Flu is an over the counter medication used to treat the symptoms associated with a cold or the flu, including nasal congestion, cough, sore throat, headache, fever, and minor aches and pains.. It is a single product containing 3 ingredients: acetaminophen, dextromethorphan, and phenylephrine.Acetaminophen belongs to a …Warnings. Liver warning: This product contains acetaminophen. Severe liver damage may occur if you take • more than 4 doses (30 mL each) in 24 hours, which is the maximum daily amount for this product • with other drugs containing acetaminophen • 3 or more alcoholic drinks every day while using this product Allergy Alert: Acetaminophen may cause severe skin reactions. What are the side effects of Dayquil Allergy (Oral)? Get emergency medical help if you have hives; difficulty breathing; swelling of your face, lips, tongue, or throat. signs of an allergic reaction:

Warnings. Liver warning: This product contains acetaminophen. Severe liver damage may occur if you take • more than 4 doses in 24 hrs, which is the maximum daily amount for this product • taken with other drugs containing acetaminophen • 3 or more alcoholic drinks every day while using this product Allergy Alert: Acetaminophen may cause severe skin …

Uses. This combination medication is used to temporarily treat cough, chest congestion, fever, body aches, and stuffy nose symptoms caused by the common cold, flu, or other breathing illnesses ...DayQuil can be used during the day. NyQuil, it doesn’t contain the active ingredient doxylamine, which is an antihistamine that can cause allergic reactions in some people. It’s not clear how much of a difference it makes for people with allergies, but it’s certainly worth a try.Pharmacy Pharmacy online online Pharmacy Pharmacy Pharmacy Pharmacy The typical dose for adults is 500mg of amoxicillin every 8 hours, or 875mg every 12 hours for more severe infections. For children, the dosage is determined by their weight and is usually calculated as 20-45mg per kilogram of body weight per day, divided into two or three doses.Understanding the Side Effects of Dayquil. Dayquil is a commonly used over-the-counter medication that provides relief from symptoms of the common cold and flu. However, it's … In rare cases, you or your baby may develop an allergic reaction to the ingredients in DayQuil. Watch for signs of an allergic reaction, like a rash, difficulty breathing, or swelling. Seek immediate medical attention if you suspect an allergy. 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 (especially of the face/tongue/throat) severe dizziness; trouble breathing; This is not a complete list of possible side effects. DayQuil™. COLD & FLU. Acetaminophen, Phenylephrine HCl, Dextromethorphan HBr. Headache, Fever, Sore Throat, Minor Aches & Pains Nasal Congestion, Sinus Pressure Cough. Non-Drowsy Alcohol Free. 12 FL OZ (354 ml) VICKS DAYQUIL COLD AND FLUacetaminophen, dextromethorphan hydrobromide, and phenylephrine hydrochloride liquid. Liver warning: This product contains acetaminophen. Severe liver damage may occur if • adult takes more than 4 doses (30 mL each) in 24 hrs, which is the maximum daily amount for this product • child takes more than 4 doses (15 mL each) in 24 hrs, which is the maximum daily amount for this product • taken with other drugs containing acetaminophen • adult has 3 or more alcoholic drinks ...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.

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What causes the rash? Broadly, the drug reaction causing the rash can be thought of as nonallergic or allergic in origin. Nonallergic rashes. There are ...48 DAYQUIL LIQUICAPS™ VICKS® NyQuil™ ULTRA CONCENTRATED. COLD & FLU. Acetaminophen, Doxylamine Succinate, Dextromethorphan HBr Headache, Fever, Sore Throat, Minor Aches & Pains. Sneezing, Runny Nose. Cough. 25% SMALLER* EASY TO SWALLOW. Nighttime Relief. 48 DAYQUIL LIQUICAPS™ 48 NYQUIL LIQUICAPS™ 96 TOTAL LIQUICAPS™Warnings. Liver warning: This product contains acetaminophen. Severe liver damage may occur if you take • more than 4 doses in 24 hrs, which is the maximum daily amount for this product • taken with other drugs containing acetaminophen • 3 or more alcoholic drinks every day while using this product Allergy Alert: Acetaminophen may cause severe skin …DayQuil works to mitigate my cold symptoms (runny nose, body aches, and headache) every time. The only downside is that as soon as 4 hours are up, my symptoms return. It then becomes a question of how long to wait until …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 …Vicks DayQuil Cold & Flu Liquid comes in a non-drowsy formula so you can get on with your day. When you need fast relief, this powerful, daytime multi-symptom relief medicine treats headache, fever, sore throat, minor aches and pains, nasal congestion, sinus pressure, and cough due to minor throat and bronchial irritation. Nothing works faster ...Nausea, vomiting, trouble sleeping, dizziness, headache, or nervousness may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Stop taking this medication ...Some manufacturers have been adding sesame flour to their products in the wake of a new labeling law. Sesame is now considered to be one of the major allergens that need to appear ...Use DayQuil Multi-Symptom Cold/Flu (acetaminophen, dextromethorphan, and pseudoephedrine capsules and tablets) as ordered by your doctor. Read all information given to you. ... Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; ...A single dose can relieve pain for up to 12 hours. Still, there are potential risks associated with taking Aleve: Stomach problems: Naproxen can cause an upset stomach or mild heartburn in some people. Cardiovascular risk: Long-term use or high doses of naproxen may increase the risk of stroke or heart attack.In this edition of Ask the Ecz-perts, Ari Zelig, MD, allergist and immunologist at the Asthma and Allergy Associates of Florida, answers questions about allergy shots, patch testin...Benadryl is more commonly used as a sleep aid and to help stem mild allergic reactions. While you can take Benadryl with DayQuil, the reason why people take DayQuil is to be alert during the day. Again, Benadryl may cause problems here. Alternatives To Benadryl ….

If you have allergies to any of the ingredients in Theraflu or DayQuil, you should not take these medications. Some people may experience an allergic reaction, which can range from mild to severe. Symptoms of an allergic reaction may include: Hives or rash; Itching; Swelling of the face, lips, tongue, or throat; Difficulty breathing; Chest ...Symptoms of an allergic reaction can include rash, hives, itching, swelling, and difficulty breathing. It is important to seek medical attention immediately if an allergic reaction occurs. In summary, while it may be tempting to mix DayQuil and coffee to combat cold or flu symptoms, it is important to understand the potential risks and side ...Both DayQuil and NyQuil contain active ingredients that can lead to side effects if not used as directed. Common side effects may include dizziness, drowsiness, nausea, and nervousness. It is essential to monitor for any adverse reactions and seek medical advice if these effects persist or worsen.VICKS DAYQUIL HIGH BLOOD PRESSURE COLD AND FLUacetaminophen, dextromethorphan liquid. Product Information. Product Type. HUMAN OTC DRUG. Item Code (Source) NDC:69423-972. Route of Administration. ORAL. Active Ingredient/Active Moiety.Side Effects. See also Warning section. Dizziness, drowsiness, headache, nausea, nervousness, or trouble sleeping may occur. If any of these effects last or get worse, …Warnings. Liver warning: This product contains acetaminophen. Severe liver damage may occur if you take • more than 4 doses (30 mL each dose) in 24 hrs, which is the maximum daily amount for this product • with other drugs containing acetaminophen • 3 or more alcoholic drinks every day while using this product Allergy Alert: Acetaminophen may …Is your dog sick, or dealing with a human allergy? Anyone who lives with allergies knows how deeply unpleasant they can be, knocking you out with a range of symptoms affecting you ...Dayquil can cause various side effects, including dizziness, upset stomach, and nervousness. These symptoms can be exacerbated when combined with Vyvanse, making it essential to monitor your body’s reactions. Common Dayquil Side Effects: Dizziness: Dayquil may lead to dizziness or lightheadedness, affecting your balance.Apr 2, 2023 · Allergic Reactions. Allergic reactions to Dayquil and Melatonin are rare but possible, especially if you have a history of allergies. Signs of an allergic reaction can include hives, itching, swelling, difficulty breathing, and chest tightness. Sep 20, 2023 ... Drug eruptions can appear as a variety of skin rashes, including pink-to-red papules (small, solid bumps), urticaria (hives), vesicles (small ... Allergic reaction to dayquil, Warnings. One ingredient in this product is acetaminophen. Taking too much acetaminophen may cause serious (possibly fatal) liver disease. Adults should not take more than 4000 milligrams (4 grams ..., In rare cases, an individual may develop an allergic reaction to Dayquil. Signs of an allergic reaction may include: Hives or rash. Swelling of the face, lips, or throat. Difficulty breathing or wheezing. If you experience any of these symptoms, seek immediate medical attention or call emergency services. , 48 DAYQUIL LIQUICAPS™ VICKS® NyQuil™ ULTRA CONCENTRATED. COLD & FLU. Acetaminophen, Doxylamine Succinate, Dextromethorphan HBr Headache, Fever, Sore Throat, Minor Aches & Pains. Sneezing, Runny Nose. Cough. 25% SMALLER* EASY TO SWALLOW. Nighttime Relief. 48 DAYQUIL LIQUICAPS™ 48 NYQUIL LIQUICAPS™ 96 TOTAL LIQUICAPS™, A recent meta-analysis of 259 patients undergoing oral challenge reported the prevalence of acetaminophen hypersensitivity reaction to be 10.1% in adult and 10.2% in pediatric patients. (1) Acetaminophen is classified as a NSAID and a weak cyclooxygenase inhibitor. There are also reports identifying reactions to acetaminophen in aspirin ..., Found out I'm allergic to nyquil/ cold medicine. I hope this helps people out there. Here's a little history. Started about 10 years ago, I usually get sick from the common cold. Just like a normal person I would go to the pharmacy and buy some nyquil/dayquil and take it at night to knock me out. I have this brown looking bruise on my back and ... , In rare cases, you or your baby may develop an allergic reaction to the ingredients in DayQuil. Watch for signs of an allergic reaction, like a rash, difficulty breathing, or swelling. Seek immediate medical attention if you suspect an allergy., Feeling nervous and excitable. Not able to sleep. These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-332-1088., Newer antihistamines like Allegra and Claritin are generally safe for daily use. But allergy medications with decongestants, such as Claritin-D or Benadryl-D, could make your allergies worse with long-term use. An allergist or immunologist can offer alternative treatments such as immunotherapy or allergen desensitization., COLD & FLU. Acetaminophen, Phenylephrine HCl, Doxylamine Succinate, Dextromethorphan HBr. Headache, Fever, Sore Throat Minor Aches & Pains Nasal Congestion, Sinus Pressure Sneezing, Runny Nose Cough. Nighttime Relief. Alcohol 10% 2 bottles – 1 DAYQUIL/1 NYQUIL 12 FL OZ (354 mL) EACH; TOTAL 24 OZ (708 mL) …, Dayquil can cause various side effects, including dizziness, upset stomach, and nervousness. These symptoms can be exacerbated when combined with Vyvanse, making it essential to monitor your body’s reactions. Common Dayquil Side Effects: Dizziness: Dayquil may lead to dizziness or lightheadedness, affecting your balance., 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 …, Is your dog sick, or dealing with a human allergy? Anyone who lives with allergies knows how deeply unpleasant they can be, knocking you out with a range of symptoms affecting you ..., Pharmacy Pharmacy online online Pharmacy Pharmacy Pharmacy Pharmacy The typical dose for adults is 500mg of amoxicillin every 8 hours, or 875mg every 12 hours for more severe infections. For children, the dosage is determined by their weight and is usually calculated as 20-45mg per kilogram of body weight per day, divided into two or three doses., The DayQuil basically is used for the common cold and following are all the detailed indications of the DayQuil. Fever; A cough; A headache; A sore throat; Pain; Nasal congestion; All above are the symptoms that are present along with the common cold and that is why the DayQuil is indicated in this condition so it will be relieving all the ..., Summary. 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, …, Yes, It is safe to take both Claritin and DayQuil together as there is no interaction between the two medications. Claritin (loratadine) is a second-generation antihistamine used to treat seasonal allergies and urticaria (hives). DayQuil Cold & Flu (acetaminophen; dextromethorphan; phenylephrine) is a combination product used to …, If you use expired, potentially contaminated, liquid medications, especially on sensitive tissues like your eyes, you can very likely cause an infection. Liquid medications often have more specific storage requirements and instructions than pills or tablets. Nitroglycerine, for example, is extremely sensitive to heat and sunlight, so it is ..., Compare to Vicks ® DayQuil ® Cold & Flu active ingredients. DAYTIME. NON-DROWSY. ALCOHOL FREE. Cold & Flu. Pain Reliever, Fever Reducer, Cough Suppressant, Nasal Decongestant. Multi-Symptom Relief • Acetaminophen – Aches, Fever • Dextromethorphan HBr – Cough • Phenylephrine HCl – Nasal congestion. Antihistamine …, DayQuil COMPLETE + Vicks VapoCOOL Cold & Flu provides fast and effective, non-drowsy relief for 12 cold and flu symptoms, with a cooling flavour sensation that will ripple through your senses. DayQuil COMPLETE + Vicks VapoCOOL relieves nasal congestion and pain, chest congestion, cough due to cold, cough with phlegm, sore throat pain, …, Dayquil can cause various side effects, including dizziness, upset stomach, and nervousness. These symptoms can be exacerbated when combined with Vyvanse, making it essential to monitor your body’s reactions. Common Dayquil Side Effects: Dizziness: Dayquil may lead to dizziness or lightheadedness, affecting your balance., Vicks DayQuil Cold & Flu Liquid comes in a non-drowsy formula so you can get on with your day. When you need fast relief, this powerful, daytime multi-symptom relief medicine treats headache, fever, sore throat, minor aches and pains, nasal congestion, sinus pressure, and cough due to minor throat and bronchial irritation. Nothing works faster ..., Allergic Reactions: In rare cases, azithromycin can cause an allergic reaction. Symptoms may include rash, itching, swelling, severe dizziness, and difficulty breathing. If any signs of an allergic reaction occur, immediate medical attention should be sought. Liver Function Abnormalities: In rare instances, azithromycin can affect liver ..., However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble ..., Acetaminophen may cause severe skin reactions. Symptoms may include: skin reddening; blisters; rash; If a skin reaction occurs, stop use and seek medical help right away. Sore throat warning: If sore throat is severe, persists for more than 2 days, is accompanied or followed by fever, headache, rash, nausea, or vomiting, consult a doctor promptly., However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble ..., Discover Vicks Cough, Cold, Flu and allergy medicine to get effective relief for symptoms like sinus & nasal congestion, sore throat, fever, and more., One serious side effect of DayQuil is an allergic reaction. Symptoms include: rash; hives; itching; red, peeling, or blistering skin; itchiness; difficulty breathing; trouble swallowing, Dayquil can be dangerous if taken in high enough dosages. One of the primary reasons medical professionals don’t recommend more than 4 doses of Dayquil in a single day is because both Dayquil and Nyquil can be potentially addictive. This is because of one of their shared ingredient dextromethorphan. This chemical ingredient alleviates …, Dayquil can be dangerous if taken in high enough dosages. One of the primary reasons medical professionals don’t recommend more than 4 doses of Dayquil in a single day is because both Dayquil and Nyquil can be potentially addictive. This is because of one of their shared ingredient dextromethorphan. This chemical ingredient alleviates …, Find medical information for Vicks DayQuil Cold & Flu on epocrates online, including its dosing, contraindications, drug interactions, and pill pictures., Discover Vicks Cough, Cold, Flu and allergy medicine to get effective relief for symptoms like sinus & nasal congestion, sore throat, fever, and more., new or worsening symptoms; an ongoing cough with a rash or headache; or. liver problems--loss of appetite, stomach pain (upper right side), tiredness, itching, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes). Common side effects may include: upset stomach; confusion; or. drowsiness. This is not a complete list of side ..., Dayquil can cause various side effects, including dizziness, upset stomach, and nervousness. These symptoms can be exacerbated when combined with Vyvanse, making it essential to monitor your body’s reactions. Common Dayquil Side Effects: Dizziness: Dayquil may lead to dizziness or lightheadedness, affecting your balance.