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.
Yes. Claritin (loratadine) is considered "non-sedating" in doses of 10 mg or less per day. At doses higher than that, which have been used in europe, sedation can occur. That being said, even at low doses, some patients can have paradoxical sedation, but it is not common.

Related Questions

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...

Have really bad nose congestion and I took one Claritin (loratadine) d non drowsy. I am starting to feel really tired, is this normal? Also, there isnt much relief

Probably a cold. Probably a cold and only time will make it go away. The claritin (loratadine) d is only for allergy and some runny nose. Time will make you feel better and you might ask the pharmacist or your doctor the recommendations of over the counter cold preparations that is safe for you to take. Read more...
Yes but. Claritin can indeed cause drowsiness in a few people especially when the dose is doubled. On the other hand, th decongestant part (D) tends to keep people awake and thus your reaction is not common but not totally unexpected. We rarely use oral decongestant nowadays given that nasal steroid /nasal antihistamine are more effective with far less side effects. Read more...

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...