levo-

Ornidazole (Levo-) (Levornidazole) is the levo-isomer of Ornidazole.

β-Elemene (Levo-β-elemene) is a natural product isolated from Curcuma wenyujin, with an antitumor activity and induce cell apoptosis.

GED-0507-34 Levo ((S)-3-(4-Aminophenyl)-2-methoxypropanoic acid), an orally available PPARγ modulator for amelioration of inflammation-driven intestinal fibrosis, decreased the expression of the pro-fibrotic genes Acta2, COL1a1, and Fn1, reduced the protein levels of α-SMA and collagen I-II, the main markers of fibrosis, as well as the major components of the TGFβ/Smad pathway, and decreased the expression of IL-13, CTGF, TGFB and ACTA1, and inhibited TGF-β-induced activation of fibroblasts and IECs cell lines.

Levoleucovorin, as a folate analog, consists of the pharmacologically active isomer of leucovorin.

(2R,3R)-Butane-2,3-diol (levo-2,3-Butanediol) is a constitutional isomer of butanediol found in cocoa and cocoa products, as well as isolated from cocoa butter and the roots of Ruta graveolens (rue). This stereoisomer is produced by various microorganisms through butanediol fermentation.

Levorotation nimorazole phosphate ester TFA is an anti-anaerobic and anti-parasitic agent.

Levosemotiadil(SA 3212) is a novel calcium antagonist and a very potent inhibitor of low-density lipoprotein oxidation.Levosemotiadil may be used to prevent lethal cardiac arrhythmias.

Levovirin (L-Ribavirin), the L-enantiomer of ribavirin, is a guanosine nucleoside analog with immunomodulatory activity and is used in the study of hepatitis C virus infection.

Alalevonadifloxacin is a DNA gyrase and DNA topoisomerase inhibitor and a novel antibacterial compound of the quinolone class targeting MRSa. Alalevonadifloxacin is potentially useful in the treatment of bacterial Gram-positive, Gram-negative and anaerobic infections.

(-)-Menthol (Levomenthol) is a levo isomer of menthol, an organic compound made synthetically or obtained from peppermint or mint oils with flavoring and local anesthetic properties. When added to pharmaceuticals and foods, menthol functions as a fortifier for peppermint flavors. It also has a counterirritant effect on skin and mucous membranes, thereby producing a local analgesic or anesthetic effect.

Levodropropizine ((S)-(-)-Dropropizine) is a histamine receptor inhibitor. It is used as an effective and very well tolerated peripheral antitussive drug.

L-Carnitine (L(-)-Carnitine) is an amino acid derivative. L-Carnitine facilitates long-chain fatty acid entry into mitochondria, delivering substrate for oxidation and subsequent energy production. Fatty acids are utilized as an energy substrate in all tissues except the brain.

L-DOPA (Levodopa) is an orally active metabolic precursor of the neurotransmitter dopamine. It can cross the blood-brain barrier and be converted into dopamine in the brain. L-DOPA exhibits anti-hyperalgesic effects and holds potential in Parkinson’s disease research, and it can also be used to induce Parkinson’s disease models.

L-Thyroxine (NSC 36397) is the major hormone derived from the thyroid gland. L-Thyroxine (NSC 36397) is synthesized via the iodination of tyrosines (MONOIODOTYROSINE) and the coupling of iodotyrosines (DIIODOTYROSINE) in the THYROGLOBULIN. L-Thyroxine (NSC 36397) is released from thyroglobulin by proteolysis and secreted into the blood. L-Thyroxine (NSC 36397) is peripherally deiodinated to form TRIIODOTHYRONINE which exerts a broad spectrum of stimulatory effects on cell metabolism.

Norepinephrine bitartrate monohydrate is an effective adrenergic receptor (AR) agonist that directly activates α1, α2, and β1 receptors, and is commonly used to induce cardiomyopathy models.

Levocarnitine propionate hydrochloride (ST-261) is used for the treatment of the deterioration of renal function, congestive heart failure, intermittent claudication, and other diseases.

Chloramphenicol (Chloromycetin) is a broad-spectrum antibiotic that inhibits the biosynthesis of bacterial proteins. Chloramphenicol acts primarily on the 50S subunit of the bacterial 70S ribosome and is active against peptidyltransferases, inhibiting the formation of peptide bonds.

Levosulpiride (S-(-)-Sulpiride) is the (S)-enantiomer of sulpiride, which is a D2 receptor antagonist, an atypical antipsychotic drug of the benzamide class.

Levonorgestrel (D-Norgestrel) is a Progestin and Progestin-containing Intrauterine Device. The physiologic effect of levonorgestrel is by means of Inhibit Ovum Fertilization.

Levofloxacin hydrate (Cravit hydrate) is a broad-spectrum, third-generation fluoroquinolone antibiotic and optically active L-isomer of ofloxacin with antibacterial activity. Levofloxacin diffuses through the bacterial cell wall and acts by inhibiting DNA gyrase (bacterial topoisomerase II), an enzyme required for DNA replication, RNA transcription, and repair of bacterial DNA. Inhibition of DNA gyrase activity leads to blockage of bacterial cell growth.

Levamlodipine (S-amlodipine) belongs to the dihydropyridine group of calcium channel blockers. Levamlodipine, also known as S-amlodipine, is a pharmacologically active enantiomer of amlodipine, an antihypertensive and anti-anginal medication. The names S-amlodipine and levamlodipine may be used interchangeably as both substances are the same, however, with differing nomenclature. As a racemic mixture, amlodipine contains (R) and (S)-amlodipine isomers, but only (S)-amlodipine as the active moiety possesses therapeutic activity.

Levobupivacaine is an amino-amide local anaesthetic drug belonging to the family of n-alkylsubstituted pipecoloxylidide. It is the S-enantiomer of bupivacaine. Levobupivacaine hydrochloride is commonly marketed by AstraZeneca under the trade name Chirocaine. Compared to bupivacaine, levobupivacaine is associated with less vasodilation and has a longer duration of action. It is approximately 13 per cent less potent (by molarity) than racemic bupivacaine.Levobupivacaine is indicated for local anaesthesia including infiltration, nerve block, ophthalmic, epidural and intrathecal anaesthesia in adults; and infiltration analgesia in children. Adverse drug reactions (ADRs) are rare when it is administered correctly. Most ADRs relate to administration technique (resulting in systemic exposure) or pharmacological effects of anesthesia, however allergic reactions can rarely occur.

L-Carnitine hydrochloride ((R)-Carnitine hydrochloride) is a highly polar small zwitterionic molecule that functions as an essential cofactor for mitochondrial β-oxidation. L-Carnitine hydrochloride facilitates the transport of long-chain fatty acyl-CoAs into mitochondria for subsequent degradation via β-oxidation, thereby supporting cellular energy metabolism. L-Carnitine hydrochloride also displays antioxidant activity and can mitigate metabolic imbalances associated with numerous inborn errors of metabolism, positioning it as an important agent in metabolic research.

Levocetirizine Dihydrochloride (Xyzal Dihydrochloride) is a third-generation peripheral H1-receptor antagonist. Acting as an antihistaminic agent, it specifically targets the histamine H1-receptor. Levocetirizine Dihydrochloride is the R-enantiomer of Cetirizine, which gives it a higher affinity for the H1-receptor than the S-enantiomer. Due to this enhanced affinity, Levocetirizine Dihydrochloride is effective in treating allergic rhinitis and chronic idiopathic urticaria.