Head-to-head comparisons of medication uses, side effects, warnings, and more.
Tylenol Cold and Flu Severe (acetaminophen/dextromethorphan/guaifenesin/phenylephrine) and Alka-Seltzer Plus Severe Cold and Flu (acetaminophen/chlorpheniramine/dextromethorphan/phenylephrine) are both over-the-counter medications used to relieve symptoms of the common cold and flu, such as cough, congestion, and fever. Both medications contain acetaminophen for pain relief and fever reduction, dextromethorphan as a cough suppressant, and phenylephrine as a decongestant. However, Tylenol Cold and Flu Severe includes guaifenesin, an expectorant that helps loosen mucus, while Alka-Seltzer Plus Severe Cold and Flu contains chlorpheniramine, an antihistamine that helps with runny nose and sneezing. Tylenol Cold and Flu Severe is available in liquid and tablet forms, while Alka-Seltzer Plus comes in capsules, effervescent tablets, and liquid. Side effects aren't common with Tylenol Cold and Flu Severe, but some people get nausea or headache. Alka-Seltzer Plus Severe Cold and Flu may affect your sleep, and some people also experience dry mouth or dizziness. You should avoid taking either medication with other products containing similar ingredients to prevent overdose, especially acetaminophen. Do not monoamine oxidase inhibitors (MAOIs) with either medication due to the risk of serotonin syndrome.
Tylenol Cold and Flu Severe is an over-the-counter (OTC) combination medication containing acetaminophen (pain killer), dextromethorphan (cough suppressant), guaifenesin (expectorant), and phenylephrine (decongestant). It's used to temporarily relieve multiple cold and flu symptoms, like sore throat, cough, congestion, fever, and minor aches, for people 12 years and older. Tylenol Cold and Flu Severe is typically taken by mouth every 4 hours as needed. This medication doesn't commonly cause side effects, but watch out for nausea, belly discomfort, and headache.
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. Besides Dayquil Cold and Flu, this medication is available under many other brand names and as a generic. It's available as pills and a liquid that's typically taken every 4 hours. Side effects aren't common but can include stomach upset and nervousness.
Short-term relief of common cold and flu symptoms, including:
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