Drilldown: Medicines

None (1) · Methocarbamol (1)

Nuplazid (1) · Robaxin (oral, injectable) (1)

Selective 5HT2A inverse agonist (with weaker 5HT2C inverse agonism) (1) · [[:Category:Skeletal muscle relaxants|Skeletal muscle relaxant (centrally-acting)]] (1)

None (1) · 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)

Hallucinations and delusions associated with Parkinson's disease psychosis (PDP). Investigational for psychosis in other dementias and as augmentation for depression. (1) · '"`UNIQ--vote-00000015-QINU`"', '"`UNIQ--vote-00000016-QINU`"' (1)

34 mg PO once daily (1) · Oral: 1500 mg PO QID for 2-3 days (load), then 750-1500 mg QID maintenance. IV/IM: 1000 mg every 8 hours for acute spasm (1)

10 mg, 34 mg capsules/tablets (1) · Tablets 500, 750 mg; injection 100 mg/mL (1)

34 mg/d (1) · 8 g/day (oral, short-term load); 6 g/day (chronic) (1)

intramuscular (1) · intravenous (1) · Oral (2)

Benefit over weeks of dosing (1) · ~30 minutes (oral) (1)

4-6 hours (1) · Daily dosing (1)

None · ~12 hours · ~27 days · ~5 h (caffeine) · '''Autoinduction''': 25-65 hours initially, falling to 12-17 hours after 2-3 weeks of dosing as carbamazepine induces its own CYP3A4 metabolism. Major clinical implication: doses require re-titration after the autoinduction period'"`UNIQ--ref-0000001D-QINU`"' · 0.5-1.5 hours (plasma); pharmacodynamic effect persists 24+ hours'"`UNIQ--ref-000000DE-QINU`"' · 1-1.3 hours'"`UNIQ--ref-000001A1-QINU`"' · 1-1.5 hours'"`UNIQ--ref-00000DE3-QINU`"' · 1-2 hours (parent compound)'"`UNIQ--ref-00000029-QINU`"' · 1-2 hours (parent); 18-30 hours for active metabolite oxypurinol'"`UNIQ--ref-0000030F-QINU`"' · 1-2 hours'"`UNIQ--ref-00000017-QINU`"' · 1-3 days acute, 4-6 days chronic; 4-16 days for norfluoxetine'"`UNIQ--ref-0000004C-QINU`"' · 1-3 hours (normal liver); markedly prolonged in overdose with glutathione depletion'"`UNIQ--ref-00000022-QINU`"' · 1-3 minutes (very short)'"`UNIQ--ref-00000C0F-QINU`"' · 1.4 hours (parent); 13-24 hours for active metabolite canrenone'"`UNIQ--ref-00000354-QINU`"' · 1.5-2 hours (longer in renal failure)'"`UNIQ--ref-00000222-QINU`"' · 1.5-2 hours'"`UNIQ--ref-00000020-QINU`"' · 10-11 hours (benazeprilat, the active metabolite)'"`UNIQ--ref-00000A22-QINU`"' · 11-13 h (immediate-release); 11-16 h (extended-release) · 11-15 hours'"`UNIQ--ref-00000842-QINU`"'

Other values:

Search

Not characterized; oral dosing once daily (1) · ~100% (oral; near-complete absorption)'"`UNIQ--ref-00000018-QINU`"' (1)

Limited data; avoid (1) · Limited human data.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (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. Not a controlled substance, distinguishing it from carisoprodol which is Schedule IV'"`UNIQ--ref-00000019-QINU`"' (1)