Drilldown: Medicines

None (3) · Loratadine (1) · Vardenafil (1)

Belsomra (1) · Claritin, Alavert, Tavist ND (1) · Dayvigo (1) · Levitra, Staxyn (1) · Quviviq (1)

Dual orexin receptor antagonist (DORA) (3) · PDE5 Inhibitor (1) · the first approved (1) · [[:Category:Antihistamines|Antihistamine]] (1) · [[:Category:H1_receptor_antagonists|Histamine H1 receptor antagonist (second-generation)]] (1)

None (1) · Competitive antagonist at OX1R and OX2R. Faster receptor association/dissociation kinetics than suvorexant (~16 sec dissociation vs ~57 sec) hypothesized to support sleep onset, with sufficient duration for maintenance. (1) · Competitive antagonist at OX1R and OX2R. First-in-class DORA. Receptor dissociation slower than lemborexant or daridorexant. (1) · Selective inhibitor of PDE5. Slightly higher PDE5/PDE6 selectivity vs sildenafil (less visual side effect) but more PDE1 cross-activity (occasional QT effects at high doses). (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)

Insomnia (sleep onset and/or maintenance) in adults (FDA-approved August 2014). Also studied for insomnia in mild-moderate Alzheimer disease. (1) · Insomnia (sleep onset and/or maintenance) in adults (FDA-approved Dec 2019) (1) · Insomnia (sleep onset and/or sleep maintenance) in adults (FDA-approved Jan 2022) (1) · '"`UNIQ--vote-0000061F-QINU`"', '"`UNIQ--vote-00000620-QINU`"' (1) · '"`UNIQ--vote-00000669-QINU`"' (1)

10 mg PO 30 min before bedtime (with ≥7 hours of sleep planned) (1) · 10 mg PO once daily (1) · 10 mg ~1 h before sexual activity (1) · 25 mg PO at bedtime (no titration); may increase to 50 mg if 25 mg inadequate (1) · 5 mg PO at bedtime; may increase to 10 mg if inadequate (1)

10 mg tablets; 5 mg ODT and chewables; 1 mg/mL oral syrup; combo Claritin-D (with pseudoephedrine, behind-counter) (1) · 2.5, 5, 10, 20 mg tabs (Levitra); 10 mg ODT (Staxyn) (1) · 25 mg, 50 mg tablets (1) · 5 mg, 10 mg tablets (1) · 5 mg, 10 mg, 15 mg, 20 mg tablets (1)

10 mg/d (1) · 10 mg/d (adults) (1) · 20 mg/d (2) · 50 mg/d (1)

None · Oral · IV · Topical · IM · intranasal · rectal · Subcutaneous · topical ophthalmic · ophthalmic · intramuscular · intravenous · transdermal · vaginal · Subcutaneous (abdomen · sublingual · thigh · Inhaled · SC · intra-articular

Other values:

Search

None · Hours · 30-60 minutes · 1-2 hours · ~30 min · LDL lowering at 2 weeks, max by 4 weeks · ~1 hour · 15-30 minutes · 15–30 min · 1–2 h · 30–60 min · Antidepressant effect emerges over 1-2 weeks · BP and symptomatic LUTS improvement within 1-2 weeks · BP effect within 1-2 weeks · Clinical improvement within 24-72 hours · Days · Motor improvement over days at therapeutic dose · Over weeks · Postprandial glucose effect within days; HbA1c by 12 weeks · Sleep effect from first dose; antidepressant effect over 1-4 weeks

Other values:

Search

24 hours (1) · 4–5 h (1) · ~7-8 hours (3)

4–5 h (1) · ~12 hours (1) · ~17-19 hours (longer than daridorexant) (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)

High (oral; food prolongs absorption modestly)'"`UNIQ--ref-00000622-QINU`"' (1) · ~15% (extensive hepatic first-pass) (1) · ~44% (1) · ~62% (1) · ~82% (1)

Category B (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.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Limited data; avoid (3)

OTC in US (1) · Rx, Schedule IV (US) (3) · Rx-only in US (1)