Drilldown: Medicines

Dexmethylphenidate (1) · Quetiapine (1) · Sildenafil (1)

Focalin, Focalin XR (1) · Seroquel (1) · Viagra, Revatio (1)

CNS stimulant (1) · NDRI (1) · PDE5 Inhibitor (1) · Psychostimulant (1) · [[:Category:Dibenzothiazepines|Dibenzothiazepine]] (1) · [[:Category:Neuroleptics|Neuroleptic]] (1) · [[:Category:Second-generation neuroleptics|Second-generation (atypical) neuroleptic]] (1) · [[:Category:Serotonin-dopamine antagonists|Serotonin-dopamine antagonist]] (1)

Dopamine D2 and serotonin 5-HT2A receptor antagonist'"`UNIQ--ref-0000008D-QINU`"' '"`UNIQ--vote-0000008E-QINU`"' (1) · Norepinephrine–dopamine reuptake inhibition (DAT, NET), d-threo enantiomer of methylphenidate (1) · Selective inhibitor of phosphodiesterase type 5 (PDE5), preventing cGMP breakdown in vascular smooth muscle. In the corpus cavernosum, potentiates the NO/cGMP cascade triggered by sexual stimulation. (1)

'"`UNIQ--vote-0000008F-QINU`"', '"`UNIQ--vote-00000090-QINU`"', '"`UNIQ--vote-00000091-QINU`"', '"`UNIQ--vote-00000092-QINU`"' (1) · '"`UNIQ--vote-00000150-QINU`"', '"`UNIQ--vote-00000151-QINU`"' (1) · '"`UNIQ--vote-00000705-QINU`"', '"`UNIQ--vote-00000706-QINU`"' (1)

None (1) · 25 mg (schizophrenia, immediate-release); 50 mg (bipolar mania, immediate-release); 50 mg (Seroquel XR, schizophrenia or bipolar) (1) · 50 mg ~1 h before sexual activity (ED); 20 mg TID (PAH) (1)

None (1) · 25 mg, 50 mg, 100 mg, 200 mg, 300 mg, 400 mg immediate-release tablets; 50 mg, 150 mg, 200 mg, 300 mg, 400 mg extended-release tablets (Seroquel XR) (1) · 25, 50, 100 mg tabs (Viagra); 20 mg tabs and 10 mg/mL oral suspension (Revatio) (1)

None (1) · 100 mg/d (ED); 20 mg TID (PAH) (1) · 800 mg/day (1)

IV (Revatio) (1) · Oral (3)

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:

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6-8 h (immediate-release); 24 h (extended-release) (1) · IR 4–6 h; XR 8–12 h (1) · ~4 h (1)

2.2 h (IR parent); ~3 h (XR parent) (1) · ~4 h (1) · ~6 h (parent compound, immediate-release); ~9-12 h (active metabolite N-desalkylquetiapine, also called norquetiapine) (1)

Tablet ~100% relative to oral solution; extensive first-pass metabolism (1) · ~22–25% (1) · ~40% (1)

Category B (1) · Category C (1) · Pregnancy categories were retired by FDA in 2015. Quetiapine has reassuring active-comparator cohort data without consistent teratogenic signal; among the preferred neuroleptics when treatment is clinically necessary in pregnancy. See pregnancy_details for the full citation set. (1)

Rx-only in US (1) · Schedule II (1) · [[USLegal:Prescription only|Prescription only]]; not a controlled substance (1)