Drilldown: Medicines
Use the filters below to narrow your results.
generic:
Brivaracetam (1) ·
Cannabidiol (1) ·
Cenobamate (1) ·
Cetirizine (1) ·
Clobazam (1) ·
Eslicarbazepine (1) ·
Ethosuximide (1) ·
Felbamate (1) ·
Fenfluramine (1) ·
Fexofenadine (1) ·
Fosphenytoin (1) ·
Lacosamide (1) ·
Levocetirizine (1) ·
Loratadine (1) ·
Perampanel (1) ·
Phenobarbital (1) ·
Phenytoin (1) ·
Rufinamide (1) ·
Stiripentol (1) ·
Tiagabine (1) ·
Valproic acid (1) ·
Vigabatrin (1) ·
Zonisamide (1)
brand:
Allegra, Allegra Allergy 24 Hour, Mucinex Allergy (combo) — all now OTC in US (1) ·
Aptiom (1) ·
Banzel (1) ·
Briviact (1) ·
Cerebyx (1) ·
Claritin, Alavert, Tavist ND (1) ·
Depakote (1) ·
Diacomit (1) ·
Dilantin (1) ·
Epidiolex (1) ·
Felbatol (1) ·
Fintepla (1) ·
Fycompa (1) ·
Gabitril (1) ·
Luminal (1) ·
Onfi (1) ·
Sabril (1) ·
Vimpat (1) ·
Xcopri (1) ·
Xyzal, Xyzal Allergy 24HR (OTC) (1) ·
Zarontin (1) ·
Zonegran (1) ·
Zyrtec, Zyrtec-D (1)
classes: (Click arrow to add another value)
mechanism:
AMPA receptor antagonist (1) ·
GABA enhancer; sodium channel blocker; histone deacetylase inhibitor (1) ·
GABA reuptake inhibitor (GAT-1 blocker) (1) ·
GABAA positive allosteric modulator (1) ·
GABAA positive allosteric modulator; lactate dehydrogenase inhibitor (1) ·
GABAA potentiator and direct activator (1) ·
Irreversible GABA-T inhibitor (1) ·
Multiple mechanisms; GPR55 antagonist; TRPV1 agonist (1) ·
NMDA antagonist; GABAA potentiator (1) ·
Prodrug of phenytoin; sodium channel blocker (1) ·
Serotonin releaser; sigma-1 agonist (1) ·
Slow-inactivation sodium channel enhancer; CRMP-2 ligand (1) ·
Sodium channel blocker (2) ·
Sodium channel blocker; GABAA positive allosteric modulator (1) ·
Sodium channel modulator (1) ·
Sodium/T-type calcium channel blocker; carbonic anhydrase inhibitor (1) ·
SV2A ligand (higher affinity than levetiracetam) (1) ·
T-type calcium channel blocker (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) ·
'"`UNIQ--vote-00000950-QINU`"' Mostly renally cleared unchanged; dose-reduce in renal impairment. Like cetirizine, retains slightly more sedation than fexofenadine in some users'"`UNIQ--ref-00000951-QINU`"'. (1) ·
'"`UNIQ--vote-00000CC9-QINU`"' Mostly excreted unchanged in feces and urine; P-glycoprotein substrate (the basis of the fruit-juice interaction). (1)
uses:
None (19) ·
'"`UNIQ--vote-00000393-QINU`"', '"`UNIQ--vote-00000394-QINU`"', '"`UNIQ--vote-00000395-QINU`"' (1) ·
'"`UNIQ--vote-0000061F-QINU`"', '"`UNIQ--vote-00000620-QINU`"' (1) ·
'"`UNIQ--vote-00000952-QINU`"', '"`UNIQ--vote-00000953-QINU`"' (1) ·
'"`UNIQ--vote-00000CCA-QINU`"', '"`UNIQ--vote-00000CCB-QINU`"' (1)
starting dose:
preparations:
None (19) ·
10 mg tablets; 5 mg ODT and chewables; 1 mg/mL oral syrup; combo Claritin-D (with pseudoephedrine, behind-counter) (1) ·
30, 60, 180 mg tablets; 30 mg ODT; 6 mg/mL oral suspension; all OTC (1) ·
5 mg tablets; 2.5 mg/5 mL oral solution; OTC (1) ·
5 mg, 10 mg tablets; 5 mg, 10 mg chewables; 1 mg/mL oral syrup; OTC (1)
fda max:
onset:
duration:
halflife:
None (19) ·
8-10 hours (longer in elderly and renal impairment)'"`UNIQ--ref-00000396-QINU`"' (1) ·
~14 hours'"`UNIQ--ref-00000CCC-QINU`"' (1) ·
~8 hours (longer in elderly and renal impairment)'"`UNIQ--ref-00000954-QINU`"' (1) ·
~8 hours (parent); ~28 hours (desloratadine, the active metabolite, marketed separately as Clarinex)'"`UNIQ--ref-00000621-QINU`"' (1)
bioavailability:
None (19) ·
High (oral); not significantly affected by food'"`UNIQ--ref-00000397-QINU`"' (1) ·
High (oral; food prolongs absorption modestly)'"`UNIQ--ref-00000622-QINU`"' (1) ·
~33% (oral; fruit juices including grapefruit, orange, and apple reduce absorption substantially via OATP1A2 inhibition — distinctive interaction not seen with most other H1s)'"`UNIQ--ref-00000CCD-QINU`"' (1) ·
~85-90% (oral; not significantly affected by food)'"`UNIQ--ref-00000955-QINU`"' (1)
pregnancy:
None (19) ·
Generally considered safe; loratadine and cetirizine have more pregnancy data and are typically preferred.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Generally considered safe; widely used. Cetirizine and loratadine remain the more-studied alternatives.<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)
legal:
Showing below up to 23 results in range #1 to #23.