Drilldown: Medicines

Dexmethylphenidate (1) · Glipizide (1) · Sildenafil (1)

Focalin, Focalin XR (1) · Glucotrol, Glucotrol XL (1) · Viagra, Revatio (1)

CNS stimulant (1) · NDRI (1) · PDE5 Inhibitor (1) · Psychostimulant (1) · [[:Category:Antihyperglycemic_agents|Antihyperglycemic agent]] (1) · [[:Category:Insulin_secretagogues|Insulin secretagogue]] (1) · [[:Category:Sulfonylureas|Sulfonylurea (second-generation)]] (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-000002D7-QINU`"' Hypoglycemia is the central risk, especially in elderly and renally impaired patients (glipizide has shorter half-life than glyburide, which is one reason it is preferred in older adults). CYP2C9 substrate; weight gain typical. (1)

'"`UNIQ--vote-00000150-QINU`"', '"`UNIQ--vote-00000151-QINU`"' (1) · '"`UNIQ--vote-000002D8-QINU`"' (1) · '"`UNIQ--vote-00000705-QINU`"', '"`UNIQ--vote-00000706-QINU`"' (1)

None (1) · 5 mg PO once daily, 30 minutes before breakfast; XL: 5 mg with breakfast (1) · 50 mg ~1 h before sexual activity (ED); 20 mg TID (PAH) (1)

None (1) · 25, 50, 100 mg tabs (Viagra); 20 mg tabs and 10 mg/mL oral suspension (Revatio) (1) · 5 mg, 10 mg immediate-release tablets; 2.5 mg, 5 mg, 10 mg extended-release tablets (1)

None (1) · 100 mg/d (ED); 20 mg TID (PAH) (1) · 40 mg/d (IR; doses >15 mg given as divided BID); 20 mg/d (XL) (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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IR 4–6 h; XR 8–12 h (1) · ~12-24 hours (1) · ~4 h (1)

2-5 hours'"`UNIQ--ref-000002D9-QINU`"' (1) · 2.2 h (IR parent); ~3 h (XR parent) (1) · ~4 h (1)

~100% (oral; food delays absorption, hence pre-meal dosing for IR)'"`UNIQ--ref-000002DA-QINU`"' (1) · ~22–25% (1) · ~40% (1)

Avoid; switch to insulin. Hypoglycemia in newborn reported.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Category B (1) · Category C (1)

Rx-only in US (1) · Schedule II (1) · [[USLegal:Prescription only|Rx-only]] in US (1)