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Doctor insights on: 12 Hour Claritin

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Dr. Ashraf Abdel Azeem
537 doctors shared insights

Claritin (Definition)

Claritin is a non-sedating antihistamine which is a kind of antihistamine type drug (common ...Read more


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Can i take 10 mg zyrtec (cetirizine) after 12 hours?

Can i take 10 mg zyrtec (cetirizine) after 12 hours?

Not advised: Zytrtec is fda approved for only once a day dosing. See an allergist for additional symptom relief. ...Read more

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Can you take clariton d 12 hour twice a day?

Can you take clariton d 12 hour twice a day?

Yes...but....: Claritin (loratadine) -d 12 hr can be taken twice a day but the 'd', or decongestant, in this drug may keep you awake if taken in the evening. ...Read more

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Can I take Claritin D 12 hour (pseudoephedrine and loratidine) with NyQuil?

Not recommended: both have decongestants in them so I would not. Claritin (loratadine) D is an antihistamine and decongestant combined, NyQuil typically has decongestants and cough suppressants. ...Read more

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Can i take Claritin d 12 hour (pseudoephedrine and loratidine) at morning and night every day?

Claritin-D: Claritin (loratadine)-d 12 hour can be taken twice daily chronically but it can have side effects. Taking a decongestant can lead to hypertension or insomnia. I would recommend trying claritin-d in the morning and just standard Claritin (loratadine) at night. This would give you the best treatment with minimal side effects. ...Read more

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Took claritin-d over 12 hours ago can I take one benadryl (diphenhydramine)?

Took claritin-d over 12 hours ago can I take one benadryl (diphenhydramine)?

yes: Benadryl (diphenhydramine) can make you drowsy, but i would not expect any untoward effects from a "non-sedating" antihistamine like Claritin in combination with benadryl (diphenhydramine). ...Read more

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Would i really need to wait 12 hours to take Claritin (loratadine) 12 hour allergy medicine?

Would i really need to wait 12 hours to take Claritin (loratadine) 12 hour allergy medicine?

Yes: Unless it has a decongestant, it is generally considered safe to take even up to 10 mg of Claritin (loratadine) 4 x a day if needed even though this is 4x the dose approved. But we do use as much as 4x the dose for those who have hives. ...Read more

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I took the wrong allegra (fexofenadine) for my symptoms 16 hours ago (allegra (fexofenadine) (fexofenadine) 24 hour). Now i want to take allegra (fexofenadine) d 12 hour. Is it safe to take allegra (fexofenadine) d now?

I took the wrong allegra (fexofenadine) for my symptoms  16 hours ago (allegra (fexofenadine) (fexofenadine) 24 hour). Now i want to take allegra (fexofenadine) d 12 hour. Is it safe to take allegra (fexofenadine) d now?

It is ok: Allegra (fexofenadine) 24 hours is a slow release non drowsy anthistamine. Allegra (fexofenadine) d 12 hours has a decongestant, sudafed or pseudo ephedrine. D stands for decongestant. Allegra (fexofenadine) itself is pretty safe even if the dose is doubled. However, avoid exceeding the dose of decongestant as it can make you hyper and also keep you awake at night. You may also see an allergist to treat the cause of the problem. ...Read more

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Taking 2 Excedrin 12 hr after taking 4 advil (ibuprofen)?

Taking 2 Excedrin 12 hr after taking 4 advil (ibuprofen)?

Yes, you can: However, neither medication should be taken more than 4 times daily. f you your pain is not relieved with these OTC medications, see your doctor for evaluation and treatment. ...Read more

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Claritin (loratadine) 12 hour and nyquil safe to take together?

Antihistamines: Both medications have antihisstamines. Not sure what you are treating, but if you need both on the same day, then it may be better to see an allergist and get another type of medication to control your symptoms. You should be able to take them together but over time the strategy is not effective. ...Read more

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I accidentally took 2 clairiton d 12 hour 4 hours apart will I be ok?

Yes: But be cautious later, the problem isn't with the claritin (loratadine) part , it is rather the "d" that is the ? Problem, it is the pseudoephedrine, the "d"econgestant, it can lead to temporary elevation of blood pressure, or other side effects. Skip the next dose for the day, as you don't want to exceed 240 mg of pseudoephedrine in 24 hours from all sources, good luck ...Read more

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Is it safe to take zyrtec 12 hours adter claritin (loratadine)?

Would wait....: Claritin (loratadine) lasts 24 hrs. Would wait another 12 hours before taking it. ...Read more

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If i took an allegra at 11am, can I take Benadryl (diphenhydramine) 12 hours later?

If i took an allegra at 11am, can I take Benadryl (diphenhydramine) 12 hours later?

Yes: Benedryl has some benefits as a really tenacious antihistamine that binds well with histamine & is very effective in that work.Its drawback is sedation which occurs because it enters the brain & messes with messages between nerve cells. You can take benedryl along with a non-sedating antihistamine as long as you can handle the side effects. ...Read more

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Could you really need to wait 12 hours to take Claritin (loratadine) 12 hour allergy medicine?

Not really: The Claritin (loratadine) reditab 5 mg will last about 12 hours, but there is no harm to taking one sooner or just go for the 10 mg reditab for 24 hour relief. ...Read more