Drilldown: Medicines

Acetaminophen (paracetamol, APAP) (1) · Aspirin (acetylsalicylic acid; ASA) (1)

Bayer, Ecotrin, Bufferin, St. Joseph (low-dose 81 mg), Excedrin (with acetaminophen and caffeine) (1) · Tylenol, Panadol (international), Ofirmev (IV); huge OTC presence (1)

Research material · Classic Psychedelic · Stimulant · Opioid · Sedative-Hypnotic · Phenethylamine · Tryptamine · Benzodiazepine · Botanical · [[:Category:Antihypertensives|Antihypertensive]] · Dissociative · Anticonvulsant · Antidepressant · Plant Medicine · Analgesic · Antipsychotic · Antiparkinsonian · Empathogen · Neuroleptic · Cathinone

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None (2)

'"`UNIQ--vote-0000001F-QINU`"', '"`UNIQ--vote-00000020-QINU`"', '"`UNIQ--vote-00000021-QINU`"', '"`UNIQ--vote-00000022-QINU`"', '"`UNIQ--vote-00000023-QINU`"', '"`UNIQ--vote-00000024-QINU`"', '"`UNIQ--vote-00000025-QINU`"', '"`UNIQ--vote-00000026-QINU`"' (1) · '"`UNIQ--vote-000006A2-QINU`"', '"`UNIQ--vote-000006A3-QINU`"', '"`UNIQ--vote-000006A4-QINU`"' (1)

325-1000 mg PO every 4-6 hours as needed; maximum 4 g/d in healthy adults, 3 g/d in regular users or hepatic risk; pediatric 10-15 mg/kg every 4-6 hours (1) · Antiplatelet: 81 mg PO once daily. Acute MI/stroke: 162-325 mg chewed. Analgesic: 325-650 mg PO every 4-6 hours as needed (1)

325, 500, 650 mg tablets; 80, 160 mg chewables; 160 mg/5 mL pediatric liquid; 325 mg suppository; 1000 mg/100 mL IV (Ofirmev); fixed-dose combinations with opioids, decongestants, antihistamines (1) · Tablets 81 (low-dose), 325, 500, 650 mg; chewable 81 mg; enteric-coated tablets; effervescent tablets; suppositories (1)

4 g/d in healthy adults; 3 g/d conservative limit; 2 g/d in cirrhosis or chronic alcohol use (1) · 4000 mg/day (analgesic) (1)

None · Oral · IV · topical · IM · intranasal · rectal · Subcutaneous · topical ophthalmic · ophthalmic · intramuscular · intravenous · transdermal · vaginal · Subcutaneous (abdomen · sublingual · thigh · Inhaled · intra-articular · nebulized

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Antiplatelet effect within 30-60 minutes; analgesic effect 30-60 minutes (1) · PO: 30-60 minutes; IV: minutes (1)

'''Antiplatelet effect lasts the platelet's lifetime (~7-10 days)''' due to irreversible COX-1 acetylation; analgesic 4-6 hours (1) · 4-6 hours (1)

1-3 hours (normal liver); markedly prolonged in overdose with glutathione depletion'"`UNIQ--ref-000006A5-QINU`"' (1) · Aspirin 15-30 minutes; salicylate metabolite 2-3 hours (concentration-dependent, saturable at high doses)'"`UNIQ--ref-00000027-QINU`"' (1)

~50% (oral; reduced by buffering and enteric coating but onset clinically similar)'"`UNIQ--ref-00000028-QINU`"' (1) · ~85-98% (oral)'"`UNIQ--ref-000006A6-QINU`"' (1)

Long the preferred analgesic-antipyretic in pregnancy; recent observational studies have raised speculative neurodevelopmental signals that remain under investigation.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Low-dose (81 mg) safe and indicated for preeclampsia prophylaxis after 12 weeks in high-risk patients per USPSTF; high-dose aspirin avoid third trimester due to premature ductus arteriosus closure and bleeding risk (1)

OTC and [[USLegal:Prescription only|Rx-only]] (IV, combination products) in US (1) · [[USLegal:Over-the-counter|OTC]] in US at all standard strengths (1)