Comparison of non sedating antihistamines
Loratadine is also the main active ingredient in these other OTC brands: Fexofenadine is the main active ingredient in Allegra.
It helps relieve runny nose, sneezing, itchy and watery eyes, and itching of the nose or throat due to hay fever or other upper respiratory allergies.
Some of the common side effects of Allegra can include: If you’re not sure which medication might be best for you, talk to your doctor or pharmacist.
And if you take other medications to treat allergy symptoms, make sure that the active ingredients are not the same or in the same drug class as the active ingredient in the antihistamine you want to take.
You don’t want to take too much of any particular drug.
To help prevent this, always check with your doctor or pharmacist.
Older ones in the tca class (elavil, anafranil, etc), trazodone and even a more modern one like Remeron (mirtazapine) do so which can lead to increased sleepiness and appetite.
As far as potency, they're not as effective as sudafed in fighting a cold. Read more See 1 more doctor answer Claritin is a second generation antihistamine which causes much less drowsiness than first generation antihistamine, like benadryl (diphenhydramine).
They also don’t last as long in your system, so they require more frequent dosing than the newer generations.
Other common brands with chlorpheniramine as a main active ingredient include: All of these side effects are more common in older people.
If you have an enlarged prostate that makes it difficult for you to urinate, you should talk to your doctor before using first-generation antihistamines. You should also talk to your doctor before using these drugs if you have any of these health concerns: If you take other drugs that can make you drowsy, such as sedatives or tranquilizers, talk to your doctor before using first-generation antihistamines.
Cetirizine is the main active ingredient in Zyrtec.
It helps relieve runny nose, sneezing, itchy and watery eyes, and nose or throat itching from hay fever and other upper respiratory allergies.