No one likes to fall ill with cold or flu. Unpleasant and annoying symptoms of these diseases prevent us from doing our everyday work as well as upset our routine for about a week or so. That is why as soon as we feel the first symptoms of the oncoming disease, we consider it better to take the medicine, which will help us get rid of them practically in no time. Nyquil is one of such cold and flu drugs, produced by Vicks. Though this over-the-counter medicine is extremely popular in the US, its sale is controlled in the country, since it is frequently reported to lead to abuse.This medication is available in the liquid form or in the form of capsules. It is designed to help people get rid of the basic flu and cold symptoms, such as fever, headache, running nose, body aches and weakness. The active ingredients of this drug are acetaminophen (reduces fever and provides pain relief), dextromethorphan (prevents coughing), doxylamine succinate (antihistamine) and pseudoephedrine (nasal decongestant).

Unfortunately, this effective medication, just like any other drug, is reported to cause a wide range of adverse reactions. That is why you should be aware of them prior to taking it. The thing is that active ingredients of this drug are frequently associated with liver damage, emotional instability (up to psychotic episodes) and abuse, especially if alcohol is taken along with this medication. Among the most commonly claimed nyquil side effects, the following ones should be mentioned here: constipation, diarrhea, vomiting, nausea, weakness, sleeping problems, anxiety, and drowsiness. These are only slight health problems, which were experience by some people, who took this drug. However, this medication is also assumed to cause more severe health complications, which require urgent medical treatment. They involve allergic reactions (hives, rash, itching), hallucinations and seizures, mood swings, dizziness, vision problems, jaundice, changes in heart rhythm etc.

Though cold and flu medications are not typically taken by children, some parents still consider this treatment possible. Consequently, some adverse reactions were observed in children as well. They included paradoxical excitement, tremors, nervousness, insomnia, heart palpitations, hallucinations etc. This medication is also supposed to increase the risk of hypotension (especially among senior people) and drowsiness not to mention potential anticholinergic effects, including pain during urination, dryness of throat, nose and mouth, disuria etc.

Now, as you are aware of the potential adverse reactions associated with this medication, you should understand that no self-treatment is admissible. This aspect especially concerns people, who suffer from frequent allergic reactions, glaucoma, asthma, chronic bronchitis, prostatic hypertrophy etc. Obviously, if you do not want to experience the above mentioned conditions, it is a must for you to get your doctor’s consultation prior to taking this drug.