Stereochemistry | ABSOLUTE |
Molecular Formula | C25H27ClN2.2ClH |
Molecular Weight | 463.87 |
Optical Activity | UNSPECIFIED |
Defined Stereocenters | 1 / 1 |
E/Z Centers | 0 |
Charge | 0 |
SHOW SMILES / InChI
SMILES
Cl.Cl.CC1=CC=CC(CN2CCN(CC2)[C@@H](C3=CC=CC=C3)C4=CC=C(Cl)C=C4)=C1
InChI
InChIKey=VCTHNOIYJIXQLV-WLOLSGMKSA-N
InChI=1S/C25H27ClN2.2ClH/c1-20-6-5-7-21(18-20)19-27-14-16-28(17-15-27)25(22-8-3-2-4-9-22)23-10-12-24(26)13-11-23;;/h2-13,18,25H,14-17,19H2,1H3;2*1H/t25-;;/m0../s1
Meclizine, a piperazine-derivative H1-receptor antagonist similar to buclizine, cyclizine, and hydroxyzine, is used as an antivertigo/antiemetic agent. Meclizine is used in the management of nausea, vomiting, and dizziness associated with motion sickness and vertigo in diseases affecting the vestibular apparatus. Along with its actions as an antagonist at H1-receptors, meclizine also possesses anticholinergic, central nervous system depressant, and local anesthetic effects. Meclizine depresses labyrinth excitability and vestibular stimulation and may affect the medullary chemoreceptor trigger zone. It is sold under the brand names Bonine, Bonamine, Antivert, Postafen, Sea Legs, and Dramamine II.
CNS Activity
Approval Year
Doses
AEs
Sourcing
PubMed
Patents
Sample Use Guides
Usual Adult Dose for Vertigo
-25 to 100 mg orally per day in divided doses
Usual Adult Dose for Motion Sickness
-Initial Dose: 25 to 50 mg orally 1 hour before travel
-Maintenance Dose: Repeat dose every 24 hours if needed
Route of Administration:
Oral
SUBSTANCE RECORD