Drilldown: Medicines

Dexmethylphenidate (1) · Methotrexate (1) · Sildenafil (1)

Focalin, Focalin XR (1) · Trexall, Otrexup, Rasuvo, Xatmep, Rheumatrex (discontinued) (1) · Viagra, Revatio (1)

CNS stimulant (1) · NDRI (1) · PDE5 Inhibitor (1) · Psychostimulant (1) · [[:Category:Antifolates|Antifolate]] (1) · [[:Category:Antineoplastics|Antineoplastic]] (1) · [[:Category:DMARDs|DMARD]] (1) · [[:Category:Immunosuppressants|Immunosuppressant]] (1)

None (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-00000150-QINU`"', '"`UNIQ--vote-00000151-QINU`"' (1) · '"`UNIQ--vote-00000705-QINU`"', '"`UNIQ--vote-00000706-QINU`"' (1) · '"`UNIQ--vote-000007C1-QINU`"', '"`UNIQ--vote-000007C2-QINU`"', '"`UNIQ--vote-000007C3-QINU`"', '"`UNIQ--vote-000007C4-QINU`"', '"`UNIQ--vote-000007C5-QINU`"', '"`UNIQ--vote-000007C6-QINU`"', '"`UNIQ--vote-000007C7-QINU`"' (1)

None (1) · 50 mg ~1 h before sexual activity (ED); 20 mg TID (PAH) (1) · Rheumatologic: 7.5-15 mg PO or SC '''once weekly''' (not daily — daily dosing is a recognized fatal error); folic acid 1 mg PO daily on non-MTX days; oncology dosing is far higher and indication-specific (1)

None (1) · 2.5 mg tablets; 10-50 mg/mL injection; pre-filled subcutaneous autoinjectors (Otrexup, Rasuvo); 2.5 mg/mL oral solution (Xatmep) (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) · Rheumatologic ~25 mg/week; oncology indication-specific (1)

intramuscular (1) · intrathecal (1) · IV (1) · IV (Revatio) (1) · Oral (3) · subcutaneous (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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IR 4–6 h; XR 8–12 h (1) · Once-weekly dosing in rheumatology (1) · ~4 h (1)

2.2 h (IR parent); ~3 h (XR parent) (1) · 3-10 hours (low dose); 8-15 hours (high dose); much longer in third-space accumulation (pleural effusion, ascites)'"`UNIQ--ref-000007C8-QINU`"' (1) · ~4 h (1)

60-70% PO at low doses; saturable at high doses (parenteral routes preferred above 15-25 mg/week)'"`UNIQ--ref-000007C9-QINU`"' (1) · ~22–25% (1) · ~40% (1)

'''Contraindicated in pregnancy''' (Category X); abortifacient and teratogenic. Discontinuation 3-6 months before conception is standard.<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)