Drilldown: Medicines

Famotidine (1)

Pepcid, Pepcid AC, Pepcid Complete (1)

[[:Category:Antisecretory_agents|Gastric acid suppressant]] (1) · [[:Category:H2_receptor_antagonists|Histamine H2 receptor antagonist]] (1)

'"`UNIQ--vote-00000255-QINU`"' Less potent and shorter-acting than PPIs but with faster on-effect; suitable for on-demand acid suppression. Largely renally cleared; dose-adjust in renal impairment to avoid CNS effects (confusion in elderly)'"`UNIQ--ref-00000256-QINU`"'. (1)

'"`UNIQ--vote-00000257-QINU`"', '"`UNIQ--vote-00000258-QINU`"', '"`UNIQ--vote-00000259-QINU`"', '"`UNIQ--vote-0000025A-QINU`"' (1)

20 mg PO twice daily, or 40 mg at bedtime (1)

None · 10 mg, 20 mg, 40 mg, 80 mg tablets · 2.5, 5, 10, 20 mg tabs · 5 mg, 10 mg tablets · 5, 10 mg tablets · 5, 10, 20, 40 mg tablets · 0.005% ophthalmic solution (50 mcg/mL); typical 2.5 mL bottle · 0.01%, 0.03% ophthalmic solution · 0.025%, 0.035% ophthalmic solutions · 0.1% (Patanol), 0.2% (Pataday once-daily original), 0.7% (Pataday 24-hour) ophthalmic solutions; 0.6% nasal spray · 0.1%, 0.15% intranasal spray; 0.05% ophthalmic solution; combination Dymista (azelastine 0.137 mg + fluticasone 50 mcg/spray) · 0.1%, 0.15%, 0.2% ophthalmic solutions; 0.33% topical gel; combinations with timolol (Combigan) and brinzolamide (Simbrinza) · 0.225%, 0.45%, 0.9%, 3%, 5% IV solutions; 0.9% nasal spray; 3% and 7% nebulizer solutions; oral tablets (1 g) · 0.25 mg, 0.5 mg, 1 mg, 2 mg tablets (immediate-release and orally disintegrating); 0.5 mg, 1 mg, 2 mg, 3 mg extended-release tablets; 1 mg/mL oral concentrate · 0.25 mg, 0.5 mg, 1 mg, 2 mg, 3 mg, 4 mg tablets · 0.25, 0.5 mcg oral capsules; 1 mcg/mL oral solution; 1 mcg/mL IV; 3 mcg/g topical ointment · 0.35 mg POP tablets; 5 mg tablets (Aygestin); component of COCs and combination HRT · 0.4 mg capsules · 0.4, 0.8, 1 mg OTC; 1 mg Rx; 5 mg/mL injection · 0.5 g, 1 g capsules

Other values:

Search

160 mg/d (Zollinger-Ellison); 80 mg/d for routine indications (1)

IV (1) · Oral (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:

Search

6-12 hours (1)

2.5-3.5 hours; longer in renal impairment'"`UNIQ--ref-0000025B-QINU`"' (1)

40-45% (oral; not significantly affected by food)'"`UNIQ--ref-0000025C-QINU`"' (1)

Generally considered safe; widely used. Cleared in lactation at low levels.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

OTC (10-20 mg) and [[USLegal:Prescription only|Rx-only]] (higher doses) in US (1)