In our recent question and also answer, the pharmacist discusses whether or no there is a medicine interaction between Claritin (Loratadine) and DayQuil.

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Brit asked

Is it safe to integrate Claritin and also DayQuil?


Claritin (loratadine) is a 2nd generation antihistamine offered to law seasonal allergies and also urticaria (hives). DayQuil Cold & Flu (acetaminophen/dextromethorphan/phenylephrine) is a mix product used to act fever, cough and sinus congestion.

it is for sure to take both Claritin and DayQuil together as there is no interaction in between the two medications. Let"s take a watch at each product an ext closely.


As a second generation antihistamine, Claritin (loratadine) is commonly non-sedating and does not cause drowsiness. Claritin (loratadine) works on the symptom of runny nose, itchy, watery eyes and also sneezing. It comes in 12 and also 24 hour formulations and effects deserve to be felt within 1 come 3 hours. That is commonly a fine tolerated medication through the most common side effects being headache, drowsiness, fatigue and dry mouth. Patients with well-known kidney or liver special needs or condition should inspect with their medical professional or various other health treatment provider before using.


DayQuil is a combination product that consists of different drugs depending on which formulation is being used. The adhering to DayQuil formulations might be available:

DayQuil HBP Cold and Flu: acetaminophen for fever/pain and Dextromethorphan for cough suppressantDayQuil Cold and also Flu Relief Caps: acetaminophen for fever/pain, Dextromethorphan for sneeze suppressant and phenylephrine because that nasal congestionDayQuil serious Cold and Flu: acetaminophen for fever/pain, Dextromethorphan for cough suppressant, phenylephrine because that nasal congestions and also guaifenesin because that expectorantDayQuil Cough and also Congestion Liquid: Dextromethorphan for sneeze suppressant and also guaifenesin for expectorantDayQuil cough Suppressant: Dextromethorphan for cough suppressant

Below, we comment on each ingredient in the above DayQuil products in detail:

Ingredients contained In DayQuil Products


Acetaminophen is offered as a heat reducer and also for pain. If acquisition DayQuil with other drugs, it is vital not to exceed the maximum dose of acetaminophen. Acetaminophen has been associated with acute liver failure. Doses should not exceed 4 grams daily in adults. Be mindful when combining v other drugs that contain paracetamol so as to not exceed the 4 grams maximum daily dose.


Dextromethorphan is a sneeze suppressant provided to aid control a cough. The is commonly a well tolerated medication. The most common side effects that have been reported space drowsiness, nausea, vomiting and also stomach upset.


Phenylephrine is a decongestant that helps relieve nasal and also sinus congestion. Patients through high blood push should examine with their doctor or various other health care provider prior to taking. It can increase blood pressure and cause love stimulation consisting of palpitations, fast heart beat and also arrhythmias. Other possible side results include insomnia, anxiety, dizziness, headache and upset stomach.


Guaifenesin isan expectorant provided to loosen mucus and also make a cough an ext productive. The most typical side effects are dizziness, drowsiness, headache, nausea, vomiting and also stomach pain.

once taking combination products, it can be rather easy to take it too lot of drug if combine with other products. That is necessary for patient to establish what they space taking and also which drugs are in a details formulation. If there is any type of confusion or questions, questioning the pharmacist or an additional health treatment provider for assist determining i m sorry product formulations room most proper for the symptoms you space trying come treat.

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Taking Claritin (loratadine) and DayQuil Cold & Flu (acetaminophen/dextromethorphan/phenylephrine) is safe. Including Claritin (loratadine) to DayQuil Cold & Flu will also give relief to any allergy symptoms current such together runny nose, watery, itchy eyes and sneezing.