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The long-acting, over-the-counter medication lasts up to 24 hours per dose, according to the Food and Drug Administration (FDA). It reaches peak concentration in your body an hour after you take ...
Loratadine's peak effect occurs after 1–2 hours, and its biological half life is on average eight hours (range 3 to 20 hours) with desloratadine's half-life being 27 hours (range 9 to 92 hours), accounting for its long-lasting effect. [34] About 40% is excreted as conjugated metabolites into the urine, and a similar amount is excreted into ...
Cetirizine acts as a highly selective antagonist of the histamine H 1 receptor. [3] The K i values for the H 1 receptor are approximately 6 nM for cetirizine, 3 nM for levocetirizine, and 100 nM for dextrocetirizine, indicating that the levorotatory enantiomer is the main active form. [3]
An H 3-antihistamine is a classification of drugs used to inhibit the action of histamine at the H 3 receptor. H 3 receptors are primarily found in the brain and are inhibitory autoreceptors located on histaminergic nerve terminals, which modulate the release of histamine .
A Clarinase Repetab tablet contains 5 mg loratadine in the tablet coating and 120 mg pseudoephedrine sulfate equally distributed between the tablet coating and the barrier-coated core.
Data requirements can also be identified in the contract via special contract clauses (e.g., DFARS), which define special data provisions such as rights in data, warranty, etc. SOW guidance of MIL-HDBK-245D describes the desired relationship: "Work requirements should be specified in the SOW, and all data requirements for delivery, format, and ...
Cetirizine/pseudoephedrine (Zyrtec-D) is an antihistamine and decongestant formulation. It is a fixed-dose combination drug containing 5 mg cetirizine hydrochloride and 120 mg pseudoephedrine hydrochloride for symptoms related to seasonal allergic rhinitis .
Terfenadine acts as a peripherally-selective antihistamine, or antagonist of the histamine H 1 receptor. [3] It is a prodrug , generally completely metabolized to the active form fexofenadine in the liver by the enzyme cytochrome P450 3A4 .