Doctor insights on:
Long Term Effects Of Claritin
What are the long term effects of being on nasonex (mometasone) and allergy meds (switch between different ones... Zyrtec, allegra, claratin) it's been many years?
Not to worry : There are no significant reported long term adverse effects of nasal steroids in studies. Direct , local effects are more common like irritation in the nose, crustiness, nosebleeds. You just take a short break from the rx for these. There are no major reported concerns about long term use of antihistamines.- zyrtec, claritin, allegra, etc. ...Read more
Is it safe to take claritin-d every day? Are there long term side effects and what does pseudoephedrine interact with, if anything?
Allergies: In general, it it safe to take antihistamines everyday for allergies. Claritin-d includes the decongestant as you mentioned, and i tend to avoid that for people on a long term basis. It increases vasoconstriction and this has a variety of effects including more work for the heart and elevated blood pressure. There are other medications that can help with congestion. See ent/allergist. ...Read moreSee 1 more doctor answer
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
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
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
I have had dry mouth and little chest pains side effects from loratadine for a day and a half, how long will it take for the side effects to leave?
8 hour half life: The half life is 8 hours, so within several days there should be hardly any active metabolites of this medicine in your system. Best wishes. ...Read more
How long does"24-hour" loratidine (i.E. Claritin) really stay with you? Maybe 16 hours, you think?
Great question!: Loratidine is metabolized to it's active metabolite, desloratidine which has a half life of 28 hours (range 9-96). This is very long acting but there is variability among individuals based on how your liver metabolizes it which is genetically determined. If you take a drug for 5 half lives, you develop a steady state blood level ie it's more effective if you take it every day than just occ doses. ...Read more
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
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
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 moreSee 1 more doctor answer
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