Doctor insights on:
How Long Does It Take For Claritin To Start Working
Pretty Quickly: Most antihistamines will start to work within the first 30-40 minutes. ...Read more
3 days to reach peak: Claritin (loratadine) (loratidine) takes 3 days to reach a steady state, so it could take that long for it to work on hives. Other non-drowsy antihistamines are a better choice: Allegra (fexofenadine) reaches peak effect within 2 hours and Zyrtec (cetirizine) reaches peak effect in 1-2 hours. If you see no benefit at all within 5 hours of taking these, they probably will not work for you. ...Read moreSee 2 more doctor answers
How many weeks does it take for claritin (loratadine) 10mg to work? How long should I give it a try before deciding to switch to a different antihistamine?
A few hours: Claritin (loratadine) should start working within a couple of hours. If it doesn't not help at all, then switching to another won't do you much good. If it does help somewhat, then you may try the other alternatives which may possess more antihistamine effect than Claritin (loratadine). ...Read more
Not unsafe: but what are you treating? if it isn't working at the regular dose for whatever problem, you'd better see your doctor, best wishes ...Read more
Up to 1 hour: Claritin (loratadine) can work relatively quickly in most people. That is, it usually works within 30 minutes. However, in some people it may take up to 60 minutes to have its full effect. If it is not working within that time, or if the duration of effect becomes less and less, seeing an allergy specialist for allergy testing would be recommended as other treatments may be more effective. ...Read moreSee 1 more doctor answer
I just took a Claritin (loratadine) D and I feel as if it's not working, can I safely take a benedryl at this point? Its been about 2 hours since the Claritin (loratadine) D.
Prob ok: Antihistamines have been around for decades, and certainly many more potent than loratadine. They say worldwide the most common drug taken is diphenhydramine, mostly for the sedative properties (as a sleep aid). Antihistamines can affect certain types of glaucoma, and accentuate urine retention in those with prostate issues and dry mucous membranes, but usually not so much with loratadine per say. ...Read more
Yes: But if you continue to have bothersome symptoms despite taking two 24-hour antihistamines in one day, you should see your physician for further advice. ...Read more
See details: I would not avoid taking them in the same day. Choose one or the other. ...Read more
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