Is it safe to take nyquil with benadryl

Dr. Robert Kwok answered. Claritin (loratadine) is a once-a-day medication, and does wear off some by night time. If nyquil, with its own antihistamine, is taken at night time, there should not be a big problem. Nyquil is usually used for just a few days during cold or flu symptoms. A doctor can evaluate prolonged or bothersome symptoms, to see ...

Is it safe to take nyquil with benadryl. Is it safe to shop online with a debit card? In this article by HowStuffworks.com, find out if it's safe to shop online with a debit card. Advertisement When it comes to spending m...

Let's review a few possible losartan interactions you should know about. 1. Medications that raise potassium levels. Potassium is an electrolyte that's commonly found in the body. Medical conditions, your diet, and even medications can cause higher potassium levels than normal. This is called hyperkalemia.

As mentioned in this answer, most over-the-counter cold medications are fine to take with Claritin. Below are some safe options to use with Claritin, depending on your symptoms: Congestion: Sudafed (pseudoephedrine) typically works well to treat these symptoms. Cough: You can use a cough suppressant, like Delsym (dextromethorphan), to help ...Melatonin is a hormone that regulates the body's circadian rhythm (the sleep-wake cycle). It's also available as a dietary supplement. Like Benadryl, it's often used for sleep disturbances like insomnia (trouble falling or staying asleep). There's some controversy over whether these two medicines are safe to take together.nausea, pain in your upper stomach pain, itching, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes). Common side effects of Nyquil Cold and Flu may include: headache, sleep problems (insomnia); upset stomach, diarrhea or constipation; dry eyes, blurred vision, dry mouth or nose;Question: Are stable-value funds a safe investment? —Rexford, Syracuse, New York Answer: That depends on what you mean by safe. Stable-value funds, which are available… By c...For sinus infections, I'd use the big guns -Sudafed, chased that with Benadryl (active sleep agent in most OTC combo drugs). Also avoid OTC combinations drugs (sinus and FEVER). The NSAID (typically ibuprofen) are usually in the fever component. NyQuil doesn't contain any NSAIDs. I could be mistaken but do you think that your Tylenol Sinus ...

When taking medications, it’s important to be cautious and informed. Many people wonder if it is safe to take Benadryl and Nyquil together. Let’s delve into this topic and explore the potential risks and considerations. Understanding the ingredients: Benadryl and Nyquil are over-the-counter medications commonly used for different purposes.Jul 6, 2023 · The specific dosages, as well as the ingredients, can vary between products. NyQuil is generally taken at bedtime since it can cause drowsiness. But you can take NyQuil up to 4 times in 24 hours, with each dose separated by 4 or 6 hours (depending on which product you take). NyQuil is available OTC as a brand-name medication. Dec 27, 2022 · Benadryl (diphenhydramine) is also a first-generation antihistamine that can cause sedation or drowsiness. It is considered to be in the same class of drugs as the doxylamine that is found in NyQuil. Benadryl can also be used as a short-term sleeping aid, but it is also commonly used to treat allergies, allergic reactions, and itching. The specific dosages, as well as the ingredients, can vary between products. NyQuil is generally taken at bedtime since it can cause drowsiness. But you can take NyQuil up to 4 times in 24 hours, with each dose separated by 4 or 6 hours (depending on which product you take). NyQuil is available OTC as a brand-name medication.We would like to show you a description here but the site won't allow us.May 18, 2019 · The Big No No. Although there are options available to those who wish to take a sleeping pill on the plane, there is one thing you absolutely should never do. "None of these medications should be mixed with alcohol," said Dr. Contacessa. "There is an additive effect that can be very dangerous, leading to oversedation or dangerous behavior." Verywell Health / Michela Buttignol. Key Takeaways. People who experience shortness of breath from COVID-19 should avoid Nyquil or other medications that can …However, the combination drug Benadryl D can increase blood pressure because it contains diphenhydramine and pseudoephedrine. Nasal sprays. Steroid nasal sprays reduce swelling in the nasal passages to alleviate congestion. These include fluticasone (Flonase) and triamcinolone (Nasacort). ... Nyquil and high blood pressure. Nyquil is a popular ...

sunlight in the morning. exercise in the morning, especially hard exercise like cardio or weights. in the evenings, dim all the lights. close your eyes, and even sit in a pitch-black room or put something over your eyes, and take slow, deep breaths. Honestly this this the best trick, I don’t know why it works so well, but it does.Melatonin is a hormone that regulates the body's circadian rhythm (the sleep-wake cycle). It's also available as a dietary supplement. Like Benadryl, it's often used for sleep disturbances like insomnia (trouble falling or staying asleep). There's some controversy over whether these two medicines are safe to take together.Is it safe to buy things from Amazon? Visit HowStuffWorks to learn if it's safe to buy things from Amazon. Advertisement Have you ever wondered why Amazon greets you by name or how...Benadryl. The maximum dosage that you can take to use Benadryl as a sleep aid is 50 mg. This dose will then take effect within an hour and will stay active for four to six hours. Side Effects and Safety ZzzQuil. This sleep aid is safe for occasional use. However, if you want to take it for more than two weeks, you'll want to consult with your ...

Amstar lake mary.

Can I take Benadryl together with fluoxetine? Can I take Nyquil together with fluoxetine? Can I take Ambien together with fluoxetine? What is fluoxetine? Fluoxetine is an antidepressant medication used to treat depression, obsessive-compulsive disorder, and bulimia. It is an SSRI (Selective Serotonin Reuptake Inhibitor), which means that it ...Rather, it can be found in over 600 different drugs (via FDA), including other popular OTC cold and flu relief medicines like NyQuil or Dayquil, reports MedlinePlus. It can also be found in ...Stop use and ask a healthcare provider if: Pain or cough worsens or lasts more than seven days. Fever worsens or lasts more than three days. Redness or swelling is present in area causing pain. New symptoms occur. Cough returns or occurs with a rash or headache that won't go away.Can you drink alcohol while taking antihistamines? Ten risks of mixing Benadryl and alcohol. Takeaway. Benadryl is an antihistamine some people take to …

Sleep aids: The options. Sleep aids available without a prescription are widely available. Common choices and the potential side effects include: Diphenhydramine (Benadryl). Diphenhydramine is a sedating antihistamine. Side effects might include daytime drowsiness, dry mouth, constipation and urinary retention. Doxylamine (Unisom).I maintain that no one needs to be warned not to eat chicken cooked in cold medicine. Dear Food and Drug Administration: You need to start asking me what things are real and what t...Answer. There is not a drug interaction between Benadryl (diphenhydramine) and Paxil (paroxetine). However, using both medications together can increase the risk of sedation and drowsiness. Therefore, due to the risk of additive sedation, the combination should be used with caution. In most cases, Benadryl administration should only be done in ...Can i take benadryl (diphenhydramine) and nyquil together? A doctor has provided 1 answer. Dr. Paul Grin answered. Specializes in Pain Management. You can, but: Not recommended due to drug interactions. Both drugs increase sedation and drowsiness. Dr Kent agreed. Answered 5/3/2021. 4.5k views.Benadryl (diphenhydramine) CoQ10 (ubiquinone) Crestor (rosuvastatin) Cymbalta (duloxetine) Eliquis (apixaban) ... Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. Unknown: No interaction information available.Tylenol. Benadryl Cold/Flu. Alka-Seltzer Plus Cold & Flu. Theraflu Severe Cold & Cough. NyQuil. Coricidin HBP Cold & Flu. Vicks DayQuil Cold & Flu. Tylenol (or generic acetaminophen) can be combined with ibuprofen. You can also take Tylenol while taking naproxen.Benadryl (diphenhydramine) Claritin (loratadine) Concerta (methylphenidate) Cymbalta (duloxetine) Fish Oil (omega-3 polyunsaturated fatty acids) ... Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. Unknown: No interaction information available.Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. ... diphenhydramine, Benadryl, guaifenesin, dextromethorphan, Mucinex, chlorpheniramine, Promethazine DM, Vicks NyQuil Cold & Flu Nighttime Relief, Vicks DayQuil Severe ...

Sept. 12, 2023. An advisory panel to the Food and Drug Administration agreed unanimously on Tuesday that a common decongestant ingredient used in many over-the-counter cold medicines is ...

Allegra D 12 Hour Allergy and Congestion: pseudoephedrine and fexofenadine. Alka-Seltzer Plus Flu: aspirin, chlorpheniramine, and dextromethorphan. Benadryl Allergy and Cold: acetaminophen, diphenhydramine, and phenylephrine. Children’s Dimetapp Cold and Cough: brompheniramine, dextromethorphan, and …These antihistamines are generally only used for the treatment of allergy symptoms, whereas Benadryl can be used for a variety of reasons including allergies, insect bites, poison ivy, sleep, and motion sickness. Atorvastatin Info. Lipitor (atorvastatin) is a statin medication, otherwise known as an HMG-CoA reductase inhibitor.Dr. Langan says NyQuil can have phenylephrine, a nasal ... Dr. Ruiz says Benadryl and loratadine are generally safe to take during pregnancy. And Dr. Langan adds that most cold medications are ...Applies to: Vicks DayQuil Severe Cold & Flu (acetaminophen / dextromethorphan / guaifenesin / phenylephrine) 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 ...Can you take OTC cold and flu medicines like NyQuil with Paxlovid? Yes. In general, it's OK to take over-the-counter (OTC) cold and flu medicines with Paxlovid. OTC cold and flu medicines usually contain one or more of these ingredients: Dextromethorphan, a cough suppressant. Guaifenesin, an expectorant. An antihistamine like doxylamine or ...Drug interactions are reported among people who take Nyquil and Doxycycline. Common interactions among females include fall and gait disturbance. Common interactions among males include abnormal behaviour and cerebrovascular accident. The phase IV clinical study analyzes what interactions people have when they take Nyquil and Doxycycline together.Current drug doses: Benadryl, I dose, NyQuil severe, 1 dose. No recreational drugs/ non-smoker I wasn’t sure where else to ask this, but I’ve been really sick and have aches all over and my feet are killing me, I was wondering if I could take that mixture of medication, benedryl because my doctor said it’s probably allergies as to why I ...Look on the back of your Delsym bottle. If the active ingredient is listed as dextromethorphan, then yes, you can safely take it with diphenhydramine as there is no known drug interaction between the two and it should be safe to take these medications together in most individuals. If you see other active ingredients besides dextromethorphan on ...Jun 23, 2022 · Benadryl is better at treating most allergy symptoms, such as runny nose and sneezing. Mucinex may be helpful if your allergies are causing a cough from postnasal drip. Mucinex has very few side effects. Benadryl often causes drowsiness, dry mouth, and constipation. You can take Mucinex and Benadryl at the same time if you need to.

Halloween creepy easy scary drawings.

Costco gasoline simi valley ca.

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 ...Is it safe for an adult to take 75 mg of benadryl (diphenhydramine)? A doctor has provided 1 answer. Dr. John Goldman answered. Specializes in Rheumatology. Yes: It is OK but we need other information about you to justify this on a regular basis. Dr Fowler and 3 doctors agreed. Answered 10/17/2018. 3.8k views. Thank.Key takeaways: Cyclobenzaprine (Amrix) is a muscle relaxant that can interact with many medications. This includes many antidepressants, sedatives, and anticholinergic medications like diphenhydramine (Benadryl). Cyclobenzaprine interactions raise the risk of side effects. These include serotonin syndrome, sleepiness, and dry mouth.You should only take Benadryl for a short amount of time, unless your doctor tells you to take it for longer. If you use Benadryl for two weeks or longer, your body can start to become dependent ...Typical dosing for Nyquil Cough (dextromethorphan / doxylamine) Each 30 mL (2 tablespoons) of liquid solution contains 30 mg of dextromethorphan and 12.5 mg of doxylamine. Adults and children 12 years and older: The typical dose is 30 mL (2 tablespoons) by mouth every 6 hours. Don't take more than 120 mL (8 tablespoons) in …There is no reported or listed interaction between Nyquil and omeprazole (brand name Prilosec). They are considered to be safe to take together. Having said that, one of the ingredients in Nyquil may exacerbate symptoms of heartburn and acid reflux. Nyquil And Acid Reflux. Nyquil contains the following ingredients: Acetaminophen …Applies to: Vicks NyQuil Severe Cold & Flu (acetaminophen / dextromethorphan / doxylamine / phenylephrine) and albuterol. Using phenylephrine together with albuterol may increase cardiovascular side effects such as elevations in heart rate and blood pressure or irregular heart rhythm. Talk to your doctor if you have any questions or concerns ...Answer. There is no known drug interaction between azithromycin (Z-Pak) and Nyquil (acetaminophen, dextromethorphan, and doxylamine). They can be safely taken together. 'NyQuil Severe', which contains one additional ingredient when compared to the 'original' NyQuil, is also safe to take with a Z-Pak. Below, I discuss each medication in more detail.The two main ingredients in OTC cough medications to look for are: Guaifenesin, which loosens mucus. Dextromethorphan, which quiets your cough. You can use these medications separately, or you can find them combined. Some common combination cough medications for people with diabetes include: Robitussin Sugar-Free.The U.S. Food and Drug Administration (FDA) is warning that taking higher than recommended doses of the common over-the-counter (OTC) allergy medicine diphenhydramine (Benadryl) can lead to ...Mushrooms are pretty safe drugs on the body. eat something because both lowers blood pressure. I’ll use it for one night, but yeah it’s got side effects. Took the nyquil and I didnt die, thanks everybody. I'm never tripping sick again. My congestion was super distracting and took away from the experience. ….

We would like to show you a description here but the site won’t allow us.Yes, Mucinex and Nyquil can be taken together because they contain different ingredients, but Mucinex DM and Nyquil should not be taken together because they share a common ingredient, dextromethorphan. Instead of taking Mucinex DM and Nyquil together you should just take Nyquil. Mucinex contains guaifenesin which is an expectorant and its main purpose is to thin out the mucus in your airways ...Is it safe to buy things from Amazon? Visit HowStuffWorks to learn if it's safe to buy things from Amazon. Advertisement Have you ever wondered why Amazon greets you by name or how...Specializes in Allergy and Immunology. Many: Many other otc antihistamines can be tried. Allergy to Benadryl (diphenhydramine) is rare and i wonder if you are referring to the drowsiness often associated with Benadryl (diphenhydramine) and this is not considered an allergic reaction. Dr Baez agreed. Answered 11/9/2016.Mar 27, 2024 ... If you've ever had trouble catching zzz's, you might've considered taking Benadryl to sleep. But is using Benadryl safe as a sleep aid?Yes, you can take Nyquil and sleep aid together. Nyquil is a cold and flu medicine that contains the antihistamine diphenhydramine. Sleep aid is a medication that contains the antihistamine doxylamine. Both of these medications can help you fall asleep. You shouldn't take Nyquil and a sleep aid together because it can make you feel very …Answer. It is generally not recommended to take promethazine with codeine and NyQuil together, for numerous reasons.. Both Drugs Contain Antihistamines. First and foremost, NyQuil contains the antihistamine doxylamine, which is similar to Benadryl in that it is classified as a sedating "first-generation" antihistamine.. Promethazine is also an antihistamine, with very similar effects to ...5 tips. How long it takes to work. When to take it. With or without food. Drug interactions. Side effects. Bottom line. References. skynesher/E+ via Getty Images. No …Stop use and ask a healthcare provider if: Pain or cough worsens or lasts more than seven days. Fever worsens or lasts more than three days. Redness or swelling is present in area causing pain. New symptoms occur. Cough returns or occurs with a rash or headache that won't go away.This includes nosebleeds, unexplained bruising, and bleeding in your urine or gums. If you're taking warfarin, you may have more frequent blood tests while you're taking trazodone. This will help your provider decide if your warfarin dose needs to be adjusted. 3. Medications that affect trazodone metabolism. Is it safe to take nyquil with benadryl, Published on July 6, 2023. Key takeaways: NyQuil is a brand name for several over-the-counter (OTC) cough and cold products. The specific dosages, as well as the …, Can I take tramadol and NyQuil? I have a frequent cough and arthritic pain in my knees I took NyQuil for the coughing and now I need to know if I can take tramadol for the pain in my knees . Updated 20 Jan 2016 5 answers. Will taking a cough syrup (Vicks Nyquil) show up in a drug test?, As mentioned above, it is safe to take Benadryl with Theraflu, as long as the specific Theraflu product you are using doesn't also contain an antihistamine. Summary. If you plan to take Benadryl and a Theraflu product together, be aware that nighttime formulations of TheraFlu products all contain diphenhydramine already, and if you're using ..., Ninjacof disease interactions. There are 7 disease interactions with Ninjacof (chlophedianol / pyrilamine) which include: depression. anticholinergic effects. asthma/COPD. cardiovascular. renal/liver disease. glaucoma. liver disease., A doctor has provided 1 answer. i took allegra d at 4 pm yesterday and then took nyquil at 10 pm. i then woke up with chest pains at 3:30 am and i could barely move or breathe.: Many conditions: Many conditions may cause chest pain. Among these are., Published on July 6, 2023. Key takeaways: NyQuil is a brand name for several over-the-counter (OTC) cough and cold products. The specific dosages, as well as the …, Donation. 15 Days Left. Prednisone is widely used to reduce inflammation in various conditions. It works by suppressing the immune response and reducing the production of inflammatory substances in the body. Prednisone can effectively manage inflammation associated with autoimmune diseases, allergies, and certain respiratory conditions., They can raise your blood pressure. • Pseudoephedrine is not safe for kidney patients. Medications for cough and chest congestion . Okay to use: • Guaifenesin (Mucinex and Robitussin DM ) for cough and chest congestion. • The cough suppressant dextromethorphan (Delsym DM , Vicks Nyquil Cough Liquid )., Applies to: Vicks Nyquil Cough (dextromethorphan / doxylamine) Alcohol can increase the nervous system side effects of doxylamine 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 doxylamine., No, you shouldn't take NyQuil and ZzzQuil at the same time. Both NyQuil and ZzzQuil contain a sedative antihistamine - Diphenhydramine . If you take the meds together at the same time, you will end up overdosing on Diphenhydramine and the most concerning side effect would be excess sedation. NyQuil does contain other active ingredients ..., There are safe ways to invest family savings. In this article, learn about 5 safe ways to invest family savings by HowStuffWorks.com. Advertisement For most of us, the day we start..., diphenhydrAMINE tiZANidine. Applies to: Benadryl (diphenhydramine) and tizanidine. Using tiZANidine 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 coordination., Pros: Helps you sleep. Cons: You're taking a bunch of other stuff you don't need like Tylenol and Dextromethorphan, tolerance to doxylamine (the ingredient that help you sleep) can occur after prolonged use (FDA does not recommend doxylamine to be used for longer than 2 weeks), you're wasting your money you could be saving by buying something like generic Unisom (Doxylamine) or Benadryl ..., Pain and Fever Reducers. Pain relievers and fever reducers that are safe to take while breastfeeding include: Tylenol (acetaminophen) Advil, Motrin (ibuprofen) Aleve (naproxen) Acetaminophen and NSAIDs (ibuprofen, naproxen) can be taken together. However, avoid taking more than one NSAID or more than one product containing …, please tell me, could i take nyquil and allergy medicine together?: Antihistamine: Nyquil has Diphenhydramine in it, i believe, which is B. What We Treat. Allergies; Antibiotics; ... Can i take one cup of nyquil for my cold, and two benadryl's for my allergies? A doctor has provided 1 answer. A member asked:, Unisom And Benadryl. As stated above, the two medications should not be taken at the same time because the side effect of drowsiness will likely be severe. In addition, the risk of the following side effects increases: If you want to take both Benadryl and Unisom the same day, they should be separated by at least 6 hours between doses., Antihistamines are considered safe to use. They are used for a wide range of symptoms including post nasal drip, congestion, and allergy symptoms. Claritin, Zyrtec, and Allegra all last 24 hours and are good options to combine with Wellbutrin if needed. While most antihistamines are considered safe with Wellbutrin, one exception may be Benadryl., dextromethorphan food. Applies to: Vicks NyQuil HBP Cold & Flu (acetaminophen / dextromethorphan / doxylamine) 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., Answer. It is not safe to take ZzzQuil with NyQuil as both contain sedating "first generation" antihistamines. Using both together would be considered a therapeutic duplication and can increase the risk of side effects. ZzzQuil contains diphenhydramine, the same active ingredient in Benadryl. NyQuil contains doxylamine, also a sedating "first ..., Find patient medical information for Vicks NyQuil Severe Cold-Flu oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings., Let's review a few possible losartan interactions you should know about. 1. Medications that raise potassium levels. Potassium is an electrolyte that's commonly found in the body. Medical conditions, your diet, and even medications can cause higher potassium levels than normal. This is called hyperkalemia., No, you shouldn't take NyQuil and ZzzQuil at the same time. Both NyQuil and ZzzQuil contain a sedative antihistamine - Diphenhydramine . If you take the meds together at the same time, you will end up overdosing on Diphenhydramine and the most concerning side effect would be excess sedation. NyQuil does contain other active ingredients ..., NSAIDs (non-steroidal anti-inflammatory drugs) and analgesics. acetaminophen (Tylenol) aspirin (Bayer’s) ibuprofen (Advil/Motrin) naproxen (Naprosyn) Advil PM, Tylenol PM. (Most “PM” medications contain diphenhydramine) Most OTC pain meds are safe to fly as long as the underlying condition is acceptable. Aches and Pains. , Maximum dose: 50mg. Motion sickness: 25mg to 50mg up to three or four times a day as needed. Maximum: 300 mg/day. Note that these dosages are for adults who are otherwise healthy and are on no interacting medicines. The dosage of diphenhydramine may need reducing in those with certain medical conditions or taking certain medicines., 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!, Antihistamines are considered safe to use. They are used for a wide range of symptoms including post nasal drip, congestion, and allergy symptoms. Claritin, Zyrtec, and Allegra all last 24 hours and are good options to combine with Wellbutrin if needed. While most antihistamines are considered safe with Wellbutrin, one exception may be Benadryl., Answer. Benadryl (diphenhydramine) and Norco should be used at the same time with caution as the potential for additive sedative effects could be dangerous. However, it is considered safe to take hydrocodone (which is contained in Norco) about 6 hours after taking Benadryl as the effects will have worn off by that time., Can you take OTC cold and flu medicines like NyQuil with Paxlovid? Yes. In general, it's OK to take over-the-counter (OTC) cold and flu medicines with Paxlovid. OTC cold and flu medicines usually contain one or more of these ingredients: Dextromethorphan, a cough suppressant. Guaifenesin, an expectorant. An antihistamine like doxylamine or ..., Benadryl is an antihistamine that can be used to treat allergic reactions, relieve motion sickness, as a sleep aid, and relieve some symptoms of Parkinson's disease. Sedation is a common side effect. 5. Tips. Benadryl may be taken with or without food. Take exactly as directed., Is it safe to buy things from Amazon? Visit HowStuffWorks to learn if it's safe to buy things from Amazon. Advertisement Have you ever wondered why Amazon greets you by name or how..., Can i take benadryl (diphenhydramine) and nyquil together? A doctor has provided 1 answer. Dr. Paul Grin answered. Specializes in Pain Management. You can, but: Not recommended due to drug interactions. Both drugs increase sedation and drowsiness. Dr Kent agreed. Answered 5/3/2021. 4.5k views., 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., Common diphenhydramine side effects may include: dizziness, drowsiness, loss of coordination; dry mouth, nose, or throat; constipation, upset stomach; dry eyes, blurred vision; or. day-time drowsiness or "hangover" feeling after night-time use. This is not a complete list of side effects and others may occur.