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Doctor insights on: Long Term Loratadine

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Is it safe to take loratadine long term, everyday, for allergies?

Is it safe to take loratadine long term, everyday, for allergies?

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

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Headache is getting worse. I have been on claritin, (loratadine) flonaz, and zyrtec but nothing seems to help long-term. Any suggestions?

Headache is getting worse. I have been on claritin, (loratadine) flonaz, and zyrtec but nothing seems to help long-term. Any suggestions?

Evaluation: I would recommend that you confirm with your provider if allergies are the reason for your headache. You have used allergy medications to treat your headache and apparently have not had benefit. I think it may be likely that your headache is not allergy related at this point. ...Read more

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I'm currently taking 8 claritin (loratadine) per day. It's entirely gotten rid of my allergies. Am I harming myself by doing this? Will it damage me long term?

I'm currently taking 8 claritin (loratadine) per day. It's entirely gotten rid of my allergies. Am I harming myself by doing this? Will it damage me long term?

Yes: This is an extremely high dose, and you won't benefit on the long or even the short term, although claritin (loratadine) is OTC, it doesn't mean you can overdose without a problem, you're personally liable and should follow the instructions carefully. As for your allergies, which I don't know their nature, there are other ways to control. Check aaaai.org or acaai.org for an allergist in your area, good luck ...Read more

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How long does it take for loratadine to work?

Same day: You should be able to hopefully notice some results withing the same day you take it. ...Read more

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How long Claritin (loratadine) stay in system?

Loratidine: The average half-life of loratidine (claritin) is about 8 hours. This means almost 90% of the drug is out of your system 24 hours after taking it (on average). ...Read more

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How long does Claritin (loratadine) take to work?

How long does Claritin (loratadine) take to work?

About 1.5 hours: The onset of clinical symptom relief is about 1.5 hours for claritin (loratadine). To read the study that compares this to zyrtec and Allegra go to: http://www.Ncbi.Nlm.Nih.Gov/pubmed/15176489. ...Read more

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How long does Claritin (loratadine) d take to work?

How long does Claritin (loratadine) d take to work?

Claritin (loratadine) D: Hello, this is a complicated answer in that claritin-d is a combination medication. The onset of Claritin is within 3 hours and the pseudofed will begin it's effects in the nasal cavity within 30 minutes. ...Read more

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How long it take for Claritin (loratadine) to work?

About 1.5 hours: Onset of clinical relief is about 1 hour for zyrtec and Allegra and about 1.5 hours for claritin (loratadine). To read the study, go to: http://www.Ncbi.Nlm.Nih.Gov/pubmed/15176489. ...Read more

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How long does Claritin (loratadine) d stay in your system?

How long does Claritin (loratadine) d stay in your system?

3-5 days: The average half-life of Claritin (loratadine) is 8 hours meaning that half the dose is gone/metabolized after 8 hours and after 8 more hours another half is gone. Doing the math, the Claritin (loratadine) is effectively out of a person's system in 3-5 days, except in geriatric patients it could possibly take up to 10 days. ...Read more

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For how long does Claritin (loratadine) stay in your system?

One day: Claritin (loratadine) 10 mg pill is dosed once daily. That's because it's effect will last about 24 hours, after that it's antihistamine effect wanes. However, Claritin is metabolized by the liver into another active compound called desloratadine, so the antihistamine effect can last a while. This is why most allergists have patients stop their Claritin a number of days before skin testing them. ...Read more

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How long should it take for my Claritin (loratadine) to work?

How long should it take for my Claritin (loratadine) to work?

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 more

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How long does it take childrens Claritin (loratadine) to work?

1-2 weeks: If there are absolutely no improvements in about a week, i tend to switch people over to zyrtec. It can be a little sedating for some, but I have found it to be much more effective than claritin (loratadine). ...Read more

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How long will it take for my Claritin (loratadine) to kick in?

About 1.5 hours: Onset of relief of symptoms will take about 1.5 hours for claritin (loratadine). This information can also be found at: http://www.Ncbi.Nlm.Nih.Gov/pubmed/15176489 other studies show that onset could take up to 3 hours. ...Read more

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How long after taking Claritin (loratadine) will you feel better?

1-2 hours: While Claritin (loratadine) is rapidly absorbed, it takes about1.2 hours to reach maximum concentration in the body. If taken with food this can delay it another hour. Therefore, about 1-2 hours. ...Read more

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What are the differences between loratadine and desloratidine in how well it works or how long it lasts?

What are the differences between loratadine and desloratidine in how well it works or how long it lasts?

Take one, get both: When you take loratidine, your liver breaks it down to desloratine which is actually responsible for the anti-histamine effects you need. Desloratidine has a much longer effect (28 hours) than loratidine (8 hours) which is why loratidine lasts such a long time. ...Read more

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How long after i take Claritin (loratadine) should the swelling go down?

Maybe 30 minutes: I am not sure this is the right medication to use for swelling, but usually Claritin (loratadine) starts kicking in within 30 minutes. ...Read more