Drilldown: Medicines

Dexmethylphenidate (1) · Fexofenadine (1) · Glimepiride (1) · Sildenafil (1)

Allegra, Allegra Allergy 24 Hour, Mucinex Allergy (combo) — all now OTC in US (1) · Amaryl (1) · Focalin, Focalin XR (1) · Viagra, Revatio (1)

CNS stimulant (1) · NDRI (1) · PDE5 Inhibitor (1) · Psychostimulant (1) · [[:Category:Antihistamines|Antihistamine]] (1) · [[:Category:Antihyperglycemic_agents|Antihyperglycemic agent]] (1) · [[:Category:H1_receptor_antagonists|Histamine H1 receptor antagonist (second-generation)]] (1) · [[:Category:Insulin_secretagogues|Insulin secretagogue]] (1) · [[:Category:Sulfonylureas|Sulfonylurea (third-generation)]] (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-00000CC9-QINU`"' Mostly excreted unchanged in feces and urine; P-glycoprotein substrate (the basis of the fruit-juice interaction). (1)

'"`UNIQ--vote-00000150-QINU`"', '"`UNIQ--vote-00000151-QINU`"' (1) · '"`UNIQ--vote-00000491-QINU`"' (1) · '"`UNIQ--vote-00000705-QINU`"', '"`UNIQ--vote-00000706-QINU`"' (1) · '"`UNIQ--vote-00000CCA-QINU`"', '"`UNIQ--vote-00000CCB-QINU`"' (1)

None (1) · 1-2 mg PO once daily with breakfast; titrate by glycemic response (1) · 50 mg ~1 h before sexual activity (ED); 20 mg TID (PAH) (1) · 60 mg PO BID or 180 mg PO once daily (1)

None (1) · 1 mg, 2 mg, 4 mg tablets (1) · 25, 50, 100 mg tabs (Viagra); 20 mg tabs and 10 mg/mL oral suspension (Revatio) (1) · 30, 60, 180 mg tablets; 30 mg ODT; 6 mg/mL oral suspension; all OTC (1)

None (1) · 100 mg/d (ED); 20 mg TID (PAH) (1) · 180 mg/d (adults) (1) · 8 mg/d (1)

None · Oral · IV · Topical · IM · Intranasal · rectal · subcutaneous · Topical ophthalmic · ophthalmic · intramuscular · intravenous · transdermal · vaginal · Subcutaneous (abdomen · sublingual · thigh · inhaled · intra-articular · nebulized

Other values:

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

2.2 h (IR parent); ~3 h (XR parent) (1) · ~14 hours'"`UNIQ--ref-00000CCC-QINU`"' (1) · ~4 h (1) · ~5-9 hours (parent and active metabolites combined)'"`UNIQ--ref-00000492-QINU`"' (1)

~100% (oral; not significantly affected by food)'"`UNIQ--ref-00000493-QINU`"' (1) · ~22–25% (1) · ~33% (oral; fruit juices including grapefruit, orange, and apple reduce absorption substantially via OATP1A2 inhibition — distinctive interaction not seen with most other H1s)'"`UNIQ--ref-00000CCD-QINU`"' (1) · ~40% (1)

Avoid; switch to insulin. Neonatal hypoglycemia 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) · Generally considered safe; loratadine and cetirizine have more pregnancy data and are typically preferred.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

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