Doctor insights on:
Zyrtec 24 Hour Side Effects
Took Zyrtec (cetirizine) last night, within a few hours, itchy throat. Possible side effect? Besides the side effects it does help. After much resesrch , many complaints with Zyrtec (cetirizine) causing itchiness. Is it safe?
Sleepiness: The major side-effect of zyrtec (cetirizine) is sedation - sleepiness, fatigue, and slowed reaction time. This occurs in 1 out of 10 or 1 out of 12 users. Compare to Benadryl (diphenhydramine) 1 of 3 users or clariting 1 in 50 users. Also occasionally reported are stomachache, headache, diarrhea, constipation & dry mouth & throat. In older men zyrtec can sometimes cause difficulty with urination. ...Read more
Drowsiness: Most likely will be drowsy. There can be respiratory suppression, at which point he would need to been evaluated in an emergency center. However, call poison control in your area to see if they have any other suggestions. Otherwise effects will wear off over time. ...Read more
I have been giving my son of 4years old 80 drops of zyrtec (cetirizine) per day for 5 days . What are the side effects?
At bedtime: It may make him slept, so best to give it before bedtime. ...Read more
Possibly: Alcohol causes sedation (sleepiness). Zyrtec (cetirizine) can cause sedation (not in everyone, but in many). Mixing the two can compound the effect - making you extra sedated. Extra sleepy. But then that can translate to greater impairment in judgement. Meaning - not thinking clearly.... ...Read more
Are there any side effects to taking Zyrtec, (cetirizine) lysozyme, kaloba long term in children 2-4 years old?
How long can a 3 year old use zyrtec (cetirizine) for? Is it safe to use it for few months or longer? Any side effects to look out for?
Gave my 5 yr old Zyrtec (cetirizine) last night 1 tsp at 7 and forgot gave to him this morning @ 9:30 1tsp. What side effects should i look fo since a extra dose?
None: It is unlikely he will experience any effect from 1 extra dose. All the best. ...Read more
I take zyrtec (cetirizine) for chronic hives, but it has caused me to lose a lot of hair...Is there another medicine I can take without the side effects?
I think my 2 yr old has allergies. I bought childrens zyrtec (cetirizine) but im afraid of side effects. Is it more common for insomnia?
Not really: Zyrtec (cetirizine) is able to cross into the brain and effect the thinking process.Most kids or adults are actually sedated by its actions, which is why they advise giving it in the evening. A percentage of folks will have the opposite effect, probably 1/20, which could interfere with sleep.The response is unique to each & consistent.You can try it once and see if the kid gets hyper.If not it should work fine ...Read more