Life and health

Fencing response

Fencing response, or tonic posturing, is an involuntary posture after traumatic brain injury: one arm extends, the opposite flexes. Linked to the brainstem lateral vestibular nucleus; indicates moderate injury forces but not worse NFL recovery outcomes.

Fenclofenac

Fenclofenac (Flenac, RX 67408) is a withdrawn phenylacetic acid NSAID, cyclooxygenase inhibitor, introduced 1978 for rheumatic disorders and removed in 1985 after skin rashes, seven deaths, and 895 adverse effect reports.

Fenclozic acid

Fenclozic acid (Myalex, ICI 54,450), a 1960s ICI carboxylic acid NSAID for rheumatoid arthritis, was withdrawn from clinical development in 1971 after causing cholestatic hepatotoxicity in human trials at 400 mg/day, an effect not seen in animals.

Fenebrutinib

Fenebrutinib (GDC-0853, RG7845) is Roche/Genentech's oral, non-covalent, reversible BTK inhibitor in Phase III for relapsing and primary progressive MS; FDA NDA accepted under priority review 30 September 2026; also trialed in rheumatoid arthritis and lupus.

Fenestella

Fenestella is an extinct fenestrate bryozoan genus named by Lonsdale in 1839, type species F. antiqua, forming netlike lace colonies from the Ordovician to the Permian; validated by ICZN Opinion 622 in 1962 after a bivalve homonym.

Sep 29, 2026

Fenestrated branched endovascular aortic repair

Fenestrated branched endovascular aortic repair (F/BEVAR) is an endovascular technique that treats complex aortic aneurysms involving renal, visceral, or arch vessels with stent grafts preserving branch blood flow.

Fenestrated endothelial cell

Fenestrated endothelial cell (window cell, CL:0000666): an endothelial cell with 50-80 nm transcellular pores (fenestrae), usually diaphragmed via PLVAP, lining filtration and secretion beds such as kidney glomeruli, choroid plexus, gut mucosa, and endocrine glands.

Fenfluramine/phentermine

Fenfluramine/phentermine, or fen-phen, an off-label 1990s US weight-loss drug combination; fenfluramine (Pondimin) withdrawn September 1997 for serotonin-mediated valvular heart disease and pulmonary hypertension; phentermine remains available.

Fenfuram

Fenfuram (fenfurame, 2-methyl-3-furanilide, CAS 24691-80-3) is a systemic furan-carboxamide SDHI seed-treatment fungicide for cereal bunts and smuts, trade name Pano-ram; not approved in the EU and considered obsolete.

Sep 21, 2026

Feng Depei

Feng Depei (Te-Pei Feng) was a Chinese neurophysiologist, 1907 to 1995, known for the Feng effect and for first describing post-tetanic potentiation at the neuromuscular junction in 1941.

Sep 19, 2026

Feng Zhang

Feng Zhang (张锋, born 1981) is a Chinese-born American scientist at the Broad Institute and MIT who first adapted CRISPR-Cas9 to edit mammalian, including human, cells.

Sep 21, 2026

Fengbin Wang

Fengbin Wang is a Chinese-born structural biologist who uses cryo-electron microscopy to study protein filaments and is an assistant professor at the University of Alabama at Birmingham since 2022.

Fenghuang (凤凰)

Fenghuang (凤凰), the Chinese phoenix, a five-colored composite mythical bird symbolizing virtue and harmony, paired with the dragon for the empress; unlike the Western phoenix, it never burns or is reborn from ashes.

Fenhexamid

Fenhexamid (KBR 2738; Teldor, Elevate) is a hydroxyanilide protectant fungicide (CAS 126833-17-8, C14H17Cl2NO2) controlling Botrytis gray mold and Monilinia on grapes, berries, and stone fruit, with low mammalian toxicity and rapid soil degradation.

Fenhua Yangtijia

粉花羊蹄甲 (Bauhinia variegata var. candida), also called 白花宫粉羊蹄甲 or 大白花, is the white-flowered variety of the orchid tree B. variegata, a 5–8 m legume tree blooming March–May, cultivated in South China and Southeast Asia and eaten as a wild flower vegetable in Yunnan.

Feni (liquor)

Feni (Fenny) is Goa's GI-protected heritage spirit, distilled from fermented cashew apple juice or coconut toddy in traditional bhatti pot stills, typically 40-45% ABV, with urrak as the first-distillation drink.

Fennec fox

Fennec fox (Vulpes zerda), smallest canid, native to the Sahara and Arabia; huge 4–6 inch ears for heat loss and hearing sand-buried prey, no need to drink, IUCN Least Concern.

Fennel

Fennel (Foeniculum vulgare, fennel seeds, Florence fennel) is an Apiaceae herb native to the Mediterranean to W. Nepal, grown for aniseed-flavored bulb, leaves, and fruits; estragole content limits its oil, and it is invasive in California.

Fenobucarb

Fenobucarb (BPMC, 2-sec-butylphenyl methylcarbamate, CAS 3766-81-2) is a WHO Class II carbamate insecticide used on rice, a reversible acetylcholinesterase inhibitor, not EU-approved, chiral with R-form more active and less toxic.

Fenofibrate

Fenofibrate, a PPARα-agonist fibrate prodrug of fenofibric acid, treats severe hypertriglyceridemia (TG ≥500 mg/dL) and primary hyperlipidemia; it lowers triglycerides 30–50% but did not reduce cardiovascular events in FIELD or ACCORD-Lipid.

Fenofibric acid

Fenofibric acid, active moiety of fenofibrate and a PPAR-alpha fibrate; marketed as Trilipix (2008) and Fibricor; adjunct to diet for hypercholesterolemia and hypertriglyceridemia, often with statins.

Oct 15, 2026

Fenoldopam

Fenoldopam, sold as Corlopam and known as SKF 82526, is a short-acting benzazepine drug given by intravenous infusion in hospitals to rapidly lower severe high blood pressure while preserving kidney blood flow.

Fenoprofen

Fenoprofen (brand Nalfon, Fenopron) is a propionic acid NSAID, C15H14O3, FDA-approved in 1976 as the calcium salt for rheumatoid arthritis, osteoarthritis, and mild to moderate pain, dosed up to 3,200 mg daily.

Fenoprop

Fenoprop (silvex, 2,4,5-TP, 2,4,5-TCPPA), CAS 93-72-1, is an obsolete phenoxypropionic herbicide and synthetic auxin first reported in 1945, banned in the USA by 1985 and not EU-approved, formerly used against woody plants and aquatic weeds.

Fenothiocarb

Fenothiocarb (Panocon) is a thiocarbamate acaricide, C13H19NO2S, registered in Japan in 1986 for mandarin oranges, not approved in the EU, with an ADI of 0.015 mg/kg bw/day.

Fenoverine

Fenoverine, marketed as Spasmopriv, is a phenothiazine-derived antispasmodic drug that modulates calcium flow across gastrointestinal smooth muscle membranes to treat spasmodic conditions including irritable bowel syndrome.

Fenoxaprop

Fenoxaprop, sold in the EU as fenoxaprop-P-ethyl, is a chiral post-emergence herbicide for annual grass weeds in cereals; the 2024 EFSA renewal review flagged endocrine disruption and aquatic risk concerns.

Fenoxaprop p ethyl

Fenoxaprop-P-ethyl (AE F046360, CAS 71283-80-2) is an aryloxyphenoxypropionate ACCase-inhibiting herbicide used post-emergence against grass weeds in cereals; EFSA's 2024 review flags endocrine and aquatic concerns.

Fenoxycarb

Fenoxycarb (CAS 72490-01-8) is a carbamate juvenile hormone analog insect growth regulator, first registered in 1985 for fire ant bait; banned in the EU since 2021 but used in the USA, UK, and Australia.