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Doctor insights on: Does Loratadine Cause Drowsiness

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Can Claritin (loratadine) non-drowsy antihistamine still cause drowsiness?

Can Claritin (loratadine) non-drowsy antihistamine still cause drowsiness?

Yes: Claritin is a second generation antihistamine which causes much less drowsiness than first generation antihistamine, like benadryl (diphenhydramine). The number of people who feel drowsy on Claritin is so low that it is labeled "non-drowsy". But each of us is unique. I have plenty of patients who feel drowsy on claritin, especially petite women. ...Read more

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Dr. Marsha Davis
425 doctors shared insights

Drowsiness (Definition)

Being tired is common during pregnancy, especially in the first few months and then towards the end. Exercise, rest, and proper diet all may reduce the degree of tiredness that you feel. It may help to take ...Read more


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Why would Claritin (loratadine) make someone drowsy?

Claritin (loratadine): Loratidine, while described as a non-sedating antihistamine, can still cause drowsiness in some individuals. It is still an antihistamine. ...Read more

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Does Claritin (loratadine) non-drowsy make you hyper?

Antihistamine: Antihistamines can still cause drowsiness even if it says, non-drowsy, especially loratadine. Paradoxical effects of hyperactivity can be a side effect of antihistamines, though it tends to happen mostly in the very young or old. If you took a decongestant with it, then that can also cause hyperactivity. ...Read more

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Non drowsy Claritin (loratadine) is making me hyper, why?

Individual variance: Any medication can produce non-typical effects on some of the population that is not seen in others. Claritin (loratadine) does not seem to cross into the brain in most people, allowing for a lack of sedation for most.However, all of us have some differences in how our body reacts to some medications ant this can be one of them. For you, the medication likely reaches your brain and causes stimulation. ...Read more

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Should i take non-drowsy Claritin (loratadine) at night or in the morning?

Should i take non-drowsy Claritin (loratadine) at night or in the morning?

Either: It can be taken either day or night. However Claritin (loratadine) d which contains a decongestant can keep some people up at night. ...Read more

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My 6mo old was prescribed loratadine/ambroxol. she seems very drowsy, why? and how long will it stay i her system?

My 6mo old was prescribed loratadine/ambroxol. she seems very drowsy, why? and how long will it stay i her system?

Mgt: If your baby is more drowsy/lethargic, not feeding well, please see your ED. This may not be related to the medications, but rather to an illness. The ambroxol should be discontinued until further evaluation is completed. For excessive mucus production, nasal saline drops and gentle suction is the only treatment advised in this age group, unless there is a tracheostomy or some other problem. ...Read more

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How come non-drowsy Claritin (loratadine) still makes you tired?

How come non-drowsy Claritin (loratadine) still makes you tired?

Claritin (loratadine): Hello, I have treated many people with allergy with antihistamines. Even though they are listed as non sedating, some people react to these medications in an unexpected fashion. Sedation may still occur and if this is present, i usually recommend using this medication if needed at night before sleep. It will still work for 24 hours and may help with allergy and sleep. ...Read more

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Loratadine makes me drowsy, should I try cetirizine to see if that doesn't do the same thing?

Loratadine makes me drowsy, should I try cetirizine to see if that doesn't do the same thing?

You can: Loratadine & Cetirizine are both in a class of medications known as non-drowsy long acting anti-histamines. Although they are in the same class, i still have patients that experience drowsiness (usually more from cetirizine); however, i would try it because everyone responds differently to the same medications. Take it before bed so if drowsy you can go to sleep anyway. ...Read more

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Since childhood I am very sensitive to desloratadine (makes me drowsy in an hour) while I am immune to loratadine. Will I ever outgrow this?

Since childhood I am very sensitive to desloratadine (makes me drowsy in an hour) while I am immune to loratadine. Will I ever outgrow this?

Unknown: Actually the desloratadine is associated with less somnolence than the loratadine on a general basis. Certainly side-effects that we experienced as children may not be present as adults but there is not was to say with certainty that you will "out grown" it. If loratadine helps your symptoms and gives you fewer side-effects stick with that! Good Luck! ...Read more

Dr. Masoud Sadighpour
269 doctors shared insights

Sleepiness (Definition)

Somnolence is a condition of drowsiness and is a symptom associated with many conditions including sleep apnea, ...Read more