Drilldown: Medicines
Use the filters below to narrow your results.
generic:
brand:
classes:
Dual orexin receptor antagonist (DORA) (1) ·
[[:Category:Antiasthmatic_agents|Antiasthmatic]] (1) ·
[[:Category:Antihistamines|Antihistamine]] (2) ·
[[:Category:Beta-3_agonists|β3 adrenergic agonist]] (1) ·
[[:Category:Expectorants|Expectorant]] (1) ·
[[:Category:H1_receptor_antagonists|Histamine H1 receptor antagonist (second-generation)]] (2) ·
[[:Category:Leukotriene_receptor_antagonists|Leukotriene receptor antagonist]] (1) ·
[[:Category:Mucolytics|Mucolytic]] (1) ·
[[:Category:Overactive_bladder_medications|Overactive bladder medication]] (1)
mechanism:
None (3) ·
'"`UNIQ--vote-00000391-QINU`"' Minimal CYP metabolism; mostly renally cleared unchanged. Cetirizine is the active racemate; levocetirizine is the active R-enantiomer marketed separately'"`UNIQ--ref-00000392-QINU`"'. (1) ·
'"`UNIQ--vote-0000061E-QINU`"' Less reliably anticholinergic than first-generation H1s; minimal antiemetic effect. Desloratadine (Clarinex) is the active enantiomer-of-metabolite version marketed as a Rx alternative. (1) ·
'"`UNIQ--vote-0000104D-QINU`"' Adequate hydration is at least as important as the drug in producing the expectorant effect clinically. Used in combination with dextromethorphan, decongestants, or antihistamines in many proprietary OTC cold preparations. (1)
uses:
Insomnia (sleep onset and/or sleep maintenance) in adults (FDA-approved Jan 2022) (1) ·
'"`UNIQ--vote-0000015B-QINU`"', '"`UNIQ--vote-0000015C-QINU`"', '"`UNIQ--vote-0000015D-QINU`"' (1) ·
'"`UNIQ--vote-00000393-QINU`"', '"`UNIQ--vote-00000394-QINU`"', '"`UNIQ--vote-00000395-QINU`"' (1) ·
'"`UNIQ--vote-0000061F-QINU`"', '"`UNIQ--vote-00000620-QINU`"' (1) ·
'"`UNIQ--vote-00000C4C-QINU`"', '"`UNIQ--vote-00000C4D-QINU`"' (1) ·
'"`UNIQ--vote-0000104E-QINU`"', '"`UNIQ--vote-0000104F-QINU`"' (1)
starting dose:
10 mg PO once daily (1) ·
10 mg PO once daily (5 mg in older adults or if sedation occurs) (1) ·
10 mg PO once daily in the evening (adults); 4-5 mg in children (1) ·
200-400 mg PO q4h (IR); 600-1200 mg PO q12h (Mucinex 12-Hour ER) (1) ·
25 mg PO at bedtime (no titration); may increase to 50 mg if 25 mg inadequate (1) ·
25 mg PO once daily; titrate to 50 mg after 4-8 weeks if needed (1)
preparations:
10 mg tablets; 4 mg, 5 mg chewables; 4 mg granules (1) ·
10 mg tablets; 5 mg ODT and chewables; 1 mg/mL oral syrup; combo Claritin-D (with pseudoephedrine, behind-counter) (1) ·
100, 200, 400 mg IR tablets; 600 mg, 1200 mg Mucinex ER tablets; many liquid formulations and combination products with dextromethorphan, pseudoephedrine, antihistamines (1) ·
25 mg, 50 mg tablets (1) ·
25, 50 mg ER tablets; 8 mg/mL granules for oral suspension (Myrbetriq Granules, pediatric) (1) ·
5 mg, 10 mg tablets; 5 mg, 10 mg chewables; 1 mg/mL oral syrup; OTC (1)
fda max: (Click arrow to add another value)
routes:
onset:
duration:
halflife:
2.7-5.5 hours'"`UNIQ--ref-0000015E-QINU`"' (1) ·
8-10 hours (longer in elderly and renal impairment)'"`UNIQ--ref-00000396-QINU`"' (1) ·
~1 hour'"`UNIQ--ref-00001050-QINU`"' (1) ·
~50 hours'"`UNIQ--ref-00000C4E-QINU`"' (1) ·
~8 hours (parent); ~28 hours (desloratadine, the active metabolite, marketed separately as Clarinex)'"`UNIQ--ref-00000621-QINU`"' (1) ·
~8 hours (shorter than suvorexant and lemborexant) (1)
bioavailability:
25 mg: ~29%; 50 mg: ~35%; food reduces absorption'"`UNIQ--ref-00000C4F-QINU`"' (1) ·
High (oral); not significantly affected by food'"`UNIQ--ref-00000397-QINU`"' (1) ·
High (oral)'"`UNIQ--ref-00001051-QINU`"' (1) ·
High (oral; food prolongs absorption modestly)'"`UNIQ--ref-00000622-QINU`"' (1) ·
~62% (1) ·
~64% (oral; not significantly affected by food)'"`UNIQ--ref-0000015F-QINU`"' (1)
pregnancy:
Generally considered acceptable.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Generally considered safe; pregnancy registries do not show increased major malformation risk.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Generally considered safe; widely used. Levocetirizine (the R-enantiomer) is an alternative with similar safety.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Generally considered safe; widely used. Loratadine and cetirizine are the most-recommended 2nd-gen H1s in pregnancy and lactation.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Limited data.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Limited data; avoid (1)
legal:
OTC in US (3) ·
Rx, Schedule IV (US) (1) ·
[[USLegal:Prescription only|Rx-only]] in US (1) ·
[[USLegal:Prescription only|Rx-only]] in US. '''FDA Boxed Warning (2020):''' neuropsychiatric events including agitation, depression, sleep disturbance, and suicidal thoughts; benefit-risk should be reassessed regularly'"`UNIQ--ref-00000160-QINU`"'. (1)
Showing below up to 6 results in range #1 to #6.