Drilldown: Medicines

Dexmethylphenidate (1) · Doxepin (hydrochloride) (1) · Mirtazapine (1) · Norethindrone (norethisterone outside US) (1) · Sildenafil (1)

Aygestin (5 mg, Rx); Camila, Errin, Heather, Jolivette, Nor-QD, Ortho Micronor, Sharobel (0.35 mg POPs); component of many COCs (1) · Focalin, Focalin XR (1) · Remeron (US brand discontinued; generic widely available), Remeron SolTab (ODT) (1) · Sinequan (oral antidepressant, US brand discontinued), Silenor (low-dose for insomnia), Prudoxin / Zonalon (topical cream) (1) · Viagra, Revatio (1)

CNS stimulant (1) · NDRI (1) · PDE5 Inhibitor (1) · Psychostimulant (1) · [[:Category:Antidepressants|Antidepressant]] (2) · [[:Category:Antihistamines|Antihistamine (potent H1)]] (1) · [[:Category:Hormonal_contraceptives|Hormonal contraceptive]] (1) · [[:Category:Progestins|Progestin (synthetic progestogen)]] (1) · [[:Category:Sex_hormones|Sex hormone]] (1) · [[:Category:Sleep aids|Sleep aid (off-label)]] (1) · [[:Category:Sleep aids|Sleep aid (Silenor low-dose)]] (1) · [[:Category:Tetracyclic antidepressants|Tetracyclic antidepressant]] (1) · [[:Category:Tricyclic antidepressants|Tricyclic antidepressant (TCA)]] (1)

None (2) · 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-000013EE-QINU`"' Higher-dose Aygestin (5 mg) achieves more reliable ovulation suppression and is used for endometriosis and DUB. POP requires strict daily timing because the 24-hour cervical-mucus effect window is narrower than COC'"`UNIQ--ref-000013EF-QINU`"'. (1)

'"`UNIQ--vote-0000001B-QINU`"', '"`UNIQ--vote-0000001C-QINU`"', '"`UNIQ--vote-0000001D-QINU`"', '"`UNIQ--vote-0000001E-QINU`"', '"`UNIQ--vote-0000001F-QINU`"' (1) · '"`UNIQ--vote-0000001D-QINU`"', '"`UNIQ--vote-0000001E-QINU`"', '"`UNIQ--vote-0000001F-QINU`"', '"`UNIQ--vote-00000020-QINU`"', '"`UNIQ--vote-00000021-QINU`"', '"`UNIQ--vote-00000022-QINU`"' (1) · '"`UNIQ--vote-00000150-QINU`"', '"`UNIQ--vote-00000151-QINU`"' (1) · '"`UNIQ--vote-00000705-QINU`"', '"`UNIQ--vote-00000706-QINU`"' (1) · '"`UNIQ--vote-000013F0-QINU`"', '"`UNIQ--vote-000013F1-QINU`"', '"`UNIQ--vote-000013F2-QINU`"', '"`UNIQ--vote-000013F3-QINU`"', '"`UNIQ--vote-000013F4-QINU`"' (1)

None (1) · 15 mg PO at bedtime, titrate to 30-45 mg/day after 1-2 weeks. '''Counterintuitive dose paradox''': lower doses (7.5-15 mg) are more sedating than higher doses because H1 antihistamine effect dominates at low dose (1) · 50 mg ~1 h before sexual activity (ED); 20 mg TID (PAH) (1) · Depression: 25-75 mg/day to start, titrate to 75-150 mg/day at bedtime. Insomnia (Silenor): 3 mg PO 30 minutes before bedtime, max 6 mg. Topical (Prudoxin): apply to affected area every 3-4 hours (1) · POP: 0.35 mg PO daily continuously (no placebo week); high-dose 5 mg Aygestin for amenorrhea/endometriosis 5-10 mg/d (1)

None (1) · 0.35 mg POP tablets; 5 mg tablets (Aygestin); component of COCs and combination HRT (1) · 25, 50, 100 mg tabs (Viagra); 20 mg tabs and 10 mg/mL oral suspension (Revatio) (1) · Capsules 10, 25, 50, 75, 100, 150 mg; oral concentrate 10 mg/mL; Silenor tablets 3, 6 mg; topical cream 5% (Prudoxin, Zonalon) (1) · Tablets 7.5, 15, 30, 45 mg; orally disintegrating tablets (SolTab) 15, 30, 45 mg (1)

None (1) · 100 mg/d (ED); 20 mg TID (PAH) (1) · 300 mg/day (depression, hospitalized); 150 mg/day outpatient; 6 mg/day for insomnia (1) · 45 mg/day (1) · Indication-specific (1)

IV (Revatio) (1) · Oral (5) · topical (1)

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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24 hours (HS dosing) (2) · IR 4–6 h; XR 8–12 h (1) · ~24 hours per dose (strict timing required for POP — within 3-hour window each day) (1) · ~4 h (1)

2.2 h (IR parent); ~3 h (XR parent) (1) · 20-40 hours'"`UNIQ--ref-00000023-QINU`"' (1) · ~15 hours (parent); nordoxepin active metabolite ~30 hours'"`UNIQ--ref-00000020-QINU`"' (1) · ~4 h (1) · ~8 hours'"`UNIQ--ref-000013F5-QINU`"' (1)

~22–25% (1) · ~30% (oral)'"`UNIQ--ref-00000021-QINU`"' (1) · ~40% (1) · ~50% (oral; substantial first-pass)'"`UNIQ--ref-00000024-QINU`"' (1) · ~65% (oral)'"`UNIQ--ref-000013F6-QINU`"' (1)

Category B (1) · Category C (1) · Contraindicated in known pregnancy (Aygestin); the 0.35 mg POP is not teratogenic and does not need to be discontinued before conception planning.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Limited human data; some observational signals reassuring relative to other antidepressants.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · TCA class signal; limited human data specific to doxepin.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

Rx-only in US (1) · Schedule II (1) · [[USLegal:Prescription only|Rx-only]] in US (note: norgestrel 0.075 mg POP is now OTC as Opill since 2023, but norethindrone POP remains Rx) (1) · [[USLegal:Prescription only|Rx-only]] in US. Carries the antidepressant '''Boxed Warning''' for suicidality in children, adolescents, and young adults'"`UNIQ--ref-00000022-QINU`"' (1) · [[USLegal:Prescription only|Rx-only]] in US. Carries the antidepressant '''Boxed Warning''' for suicidality in children, adolescents, and young adults'"`UNIQ--ref-00000025-QINU`"' (1)