High-performance liquid chromatography (HPLC), formerly referred to as high-pressure liquid chromatography, is a technique in analytical chemistry used to separate, identify, and quantify specific components in mixtures. The mixtures can originate from food, chemicals, pharmaceuticals, biological, environmental and agriculture, etc., which have been dissolved into liquid solutions.
Valdecoxib is a nonsteroidal anti-inflammatory drug (NSAID) used in the treatment of osteoarthritis, rheumatoid arthritis, and painful menstruation and menstrual symptoms. It is a selective cyclooxygenase-2 inhibitor. It was patented in 1995.
Fasoracetam is an experimental drug of the racetam group which was never marketed. It is a putative nootropic that failed to show sufficient efficacy in clinical trials for vascular dementia. The drug was also subsequently repurposed for treatment of a variety of other conditions, such as attention deficit hyperactivity disorder (ADHD), but effectiveness for ADHD was disappointing and development of fasoracetam for most other conditions has been discontinued as well. In any case, it remains under development for treatment of DiGeorge syndrome.
Phenylpiracetam, also known as fonturacetam and sold under the brand names Phenotropil, Actitropil, and Carphedon among others, is a stimulant and nootropic medication used in Russia and certain other Eastern European countries in the treatment of cerebrovascular deficiency, depression, apathy, and attention, and memory problems, among other indications. It is also used in Russian cosmonauts to improve physical, mental, and cognitive abilities. The drug is taken by mouth.
Isoprenaline, also known as isoproterenol and sold under the brand name Isuprel among others, is a sympathomimetic medication which is used in the treatment of acute bradycardia, heart block, and rarely for asthma, among other indications. It is used by injection into a vein, muscle, fat, or the heart, by inhalation, and in the past under the tongue or into the rectum.
Mesocarb, sold under the brand name Sidnocarb or Sydnocarb and known by the developmental code name MLR-1017, is a psychostimulant medication which has been used in the treatment of psychiatric disorders and for a number of other indications in the Soviet Union and Russia. It is currently under development for the treatment of Parkinson's disease and sleep disorders. It is taken by mouth.
Casopitant (INNTooltip International Nonproprietary Name), former tentative trade names Rezonic (U.S.) and Zunrisa (Europe), is an NK1 receptor antagonist which was undergoing research for the treatment of chemotherapy-induced nausea and vomiting. It was under development by GlaxoSmithKline. In July 2008, the company filed a marketing authorisation application with the European Medicines Agency. The application was withdrawn and development was discontinued in September 2009 because GlaxoSmithKline decided that further safety assessment was necessary. However, a 2022 review listed casopitant as under development as a potential novel antidepressant for the treatment of major depressive disorder, with a phase 2 clinical trial having been completed.
Nemonapride, also previously known as emonapride and sold under the brand name Emilace, is an atypical antipsychotic which is used in the treatment of schizophrenia. It is taken by mouth.
Bradanicline is a drug which was being developed by Targacept that acts as a partial agonist at the α7 subtype of the neural nicotinic acetylcholine receptors. It showed cognitive enhancing effects in animal studies, and was being developed through a collaboration between Targacept and AstraZeneca as a potential treatment for schizophrenia and attention deficit disorder. Phase I clinical trials were completed successfully, and it was in phase II trials.
Abediterol is a once-daily experimental drug candidate for the treatment of asthma and chronic obstructive pulmonary disease (COPD), but it has never been marketed.
Clascoterone, sold under the brand name Winlevi, is an antiandrogen medication which is used topically in the treatment of acne. It is also under development in a higher concentration for the treatment of androgen-dependent scalp hair loss, under the brand name Breezula. The medication is used as a cream by application to the skin, for instance the face and scalp.
Rovalpituzumab tesirine (Rova-T) is an experimental antibody-drug conjugate targeting the protein DLL3 on tumor cells. It was originally developed by Stemcentrx and was purchased by AbbVie. It was tested for use in small-cell lung cancer, but development was terminated after unsuccessful phase III trial.
Onapristone is a synthetic and steroidal antiprogestogen with additional antiglucocorticoid activity which was developed by Schering and described in 1984 but was never marketed. It is a silent antagonist of the progesterone receptor (PR), in contrast to the related antiprogestogen mifepristone. Moreover, compared to mifepristone, onapristone has reduced antiglucocorticoid activity, shows little antiandrogenic activity, and has 10- to 30-fold greater potency as an antiprogestogen. The medication was under development for clinical use, for instance in the treatment of breast cancer and as an endometrial contraceptive, but was discontinued during phase III clinical trials in 1995 due to findings that liver function abnormalities developed in a majority patients.
Suptavumab (INN; development code is a humanized monoclonal antibody designed for the prevention of medically attended lower respiratory tract disease due to respiratory syncytial virus.
Rezvilutamide, sold under the brand name Ariane, is a nonsteroidal antiandrogen which is approved for the treatment of prostate cancer in China and is or was under development for the treatment of breast cancer. It is a selective androgen receptor antagonist with reduced brain distribution compared to the structurally related nonsteroidal antiandrogen enzalutamide. The drug was developed by Jiangsu Hengrui Medicine. Other structural analogues of rezvilutamide that are also used as antiandrogens besides enzalutamide include apalutamide and proxalutamide.
Tirzepatide is an antidiabetic medication used for the treatment of type 2 diabetes and for weight loss. Tirzepatide is administered via subcutaneous injections. It is sold under the brand names Mounjaro for diabetes treatment, and Zepbound for weight loss.
Dalzanemdor is experimental drug being investigated for the treatment of neurological disorders and cognitive impairment. It acts as a positive allosteric modulator of the NMDA receptor, whose activity is essential for learning, memory, and cognition. Dalzanemdor is an analogue of the neurosteroid 24S-hydroxycholesterol.
RGPU-95, also known as p-chlorophenylpiracetam, is a racetam and a derivative of phenylpiracetam. It was developed by Russian researchers as a potential antidepressant and anxiolytic agent and was first described in the scientific literature by 2010. The drug is described as 5 to 10 times more potent in its activity than phenylpiracetam in animals. It has been identified as a novel psychoactive drug and nootropic sold on the Internet.
Bufenadrine, also known as 2-tert-butyldiphenhydramine, is a drug described as an antiemetic, antihistamine, anticholinergic, and antiparkinsonian agent which was never marketed. It is the 2-tert-butyl analogue of diphenhydramine. The drug was found to produce stereoselective hepatotoxicity in animals and this led to the discontinuation of its development. Bufenadrine was first described in the literature by 1967. Its INNTooltip International Nonproprietary Name suffix "-drine" is generally for sympathomimetics but bufenadrine itself is not actually a sympathomimetic or related agent.
