Drilldown: Medicines
Use the filters below to narrow your results.
generic:
brand:
classes:
Dual orexin receptor antagonist (DORA) (1) ·
Selective 5HT2A inverse agonist (with weaker 5HT2C inverse agonism) (1) ·
[[:Category:Antiasthmatic_agents|Antiasthmatic]] (1) ·
[[:Category:Antihistamines|Antihistamine]] (2) ·
[[:Category:Beta-3_agonists|β3 adrenergic agonist]] (1) ·
[[:Category:H1_receptor_antagonists|Histamine H1 receptor antagonist (second-generation)]] (2) ·
[[:Category:Leukotriene_receptor_antagonists|Leukotriene receptor antagonist]] (1) ·
[[:Category:Overactive_bladder_medications|Overactive bladder medication]] (1)
mechanism:
None (3) ·
Selective inverse agonist at 5HT2A receptors with weaker activity at 5HT2C. Has no significant dopamine D2 affinity, unique among approved antipsychotics. Inverse agonism (rather than antagonism) reduces constitutive 5HT2A receptor activity below baseline. (1) ·
'"`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)
uses:
Hallucinations and delusions associated with Parkinson's disease psychosis (PDP). Investigational for psychosis in other dementias and as augmentation for depression. (1) ·
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)
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) ·
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) ·
34 mg PO once daily (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) ·
10 mg, 34 mg capsules/tablets (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) ·
~50 hours'"`UNIQ--ref-00000C4E-QINU`"' (1) ·
~57 hours (parent), ~200 h (active metabolite) (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; food prolongs absorption modestly)'"`UNIQ--ref-00000622-QINU`"' (1) ·
Not characterized; oral dosing once daily (1) ·
~62% (1) ·
~64% (oral; not significantly affected by food)'"`UNIQ--ref-0000015F-QINU`"' (1)
pregnancy:
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 (2)
legal:
OTC in US (2) ·
Rx, Schedule IV (US) (1) ·
Rx. FDA black-box warning for increased mortality in elderly patients with dementia-related psychosis (class warning shared with all antipsychotics) (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.