U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Showing 1491 - 1500 of 8583 results

Status:
US Previously Marketed
First approved in 1966

Class (Stereo):
CHEMICAL (ACHIRAL)



Tolazamide is an oral blood glucose lowering drug of the sulfonylurea class. Tolazamide appears to lower the blood glucose acutely by stimulating the release of insulin from the pancreas, an effect dependent upon functioning beta cells in the pancreatic islets. The mechanism by which tolazamide lowers blood glucose during long-term administration has not been clearly established. With chronic administration in Type II diabetic patients, the blood glucose lowering effect persists despite a gradual decline in the insulin secretory response to the drug. Extrapancreatic effects may be involved in the mechanism of action of oral sulfonylurea hypoglycemic drugs. Some patients who are initially responsive to oral hypoglycemic drugs, including tolazamide, may become unresponsive or poorly responsive over time. Alternatively, tolazamide may be effective in some patients who have become unresponsive to one or more other sulfonylurea drugs. In addition to its blood glucose lowering actions, tolazamide produces a mild diuresis by enhancement of renal free water clearance. Sulfonylureas likely bind to ATP-sensitive potassium-channel receptors on the pancreatic cell surface, reducing potassium conductance and causing depolarization of the membrane. Depolarization stimulates calcium ion influx through voltage-sensitive calcium channels, raising intracellular concentrations of calcium ions, which induces the secretion, or exocytosis, of insulin. Tolazamide is used for use as an adjunct to diet to lower the blood glucose in patients with non-insulin dependent diabetes mellitus (Type II) whose hyperglycemia cannot be satisfactorily controlled by diet alone.
Status:
US Previously Marketed
First approved in 1965

Class (Stereo):
CHEMICAL (RACEMIC)



Methixene is a tertiary antimuscarinic with actions similar to those of atropine; it also has antihistaminic and direct antispasmodic properties. It is used for the symptomatic treatment of parkinsonism, including the alleviation of the extrapyramidal syndrome induced by other drugs such as phenothiazines, but, like other antimuscarinics, it is of no value against tardive dyskinesias. Metixene has been discontinued. Parkinsonism is thought to result from an imbalance between the excitatory (cholinergic) and inhibitory (dopaminergic) systems in the corpus striatum. The mechanism of action of centrally active anticholinergic drugs such as metixene is considered to relate to competitive antagonism of acetylcholine at muscarinic receptors in the corpus striatum, which then restores the balance.
on as chelating agents in cosmetics. Pentasodium Pentetate is readily soluble in water, but the corresponding free acid is not. Pentasodium Pentetate is used in almost 400 cosmetic products over a wide range of product categories, although it is mostly used in hair dyes and colors at use concentrations of 0.1% to 1.0%. Pentetic Acid and Pentasodium Pentetate inactivate metallic ions, such as calcium and magnesium, to maintain stability and appearance of cosmetic products. The inactivation of other metallic ions such as iron or copper also helps to prevent the oxidative deterioration of cosmetics and personal care products.
Status:
US Previously Marketed
First approved in 1965

Class (Stereo):
CHEMICAL (RACEMIC)



Chlorphenesin carbamate (Maolate, Musil) is a centrally acting muscle relaxant used to treat muscle pain and spasms. Сhlorphenesin acts in the central nervous system (CNS) rather than directly on skeletal muscle. It also has antifungal and some antibacterial properties. The major adverse effects are drowsiness and dizziness.
Status:
US Previously Marketed
Source:
Solacen by Wallace
(1965)
Source URL:
First approved in 1965
Source:
Solacen by Wallace
Source URL:

Class (Stereo):
CHEMICAL (RACEMIC)

Conditions:

Tybamate is a minor tranquilizer that is chemically and pharmacologically related to meprobamate. It is useful in treating anxiety and tension associated with psychoneurotic disorders.
Cloxacillin is a derivative of penicillin for the treatment of broad spectrum of bacterial infections. The drug exerts its action by inhiiting bacterial beta-lactamase (penicillin-binding proteins).
Status:
US Previously Marketed
First approved in 1965

Class (Stereo):
CHEMICAL (ACHIRAL)


Conditions:

Chlorphentermine exerts anorectic properties. It is a synthetic amphetamine derivatc claimed to have none of the excitatory effects of the parenit substanice. PRE-SATE (Chlorphentermine HCl) is an effective appetite suppressant with a pattern of pharmacologic action substantially different from those of traditional anorexigenics. In providing dependable appetite control with appreciable loss of bodyweight, PRE-SATE does not significantly increase central nervous system (CNS), cardiorespiratory or metabolic activity.
Status:
US Previously Marketed
Source:
C-Quens by Eli lilly
(1965)
Source URL:
First approved in 1965
Source:
C-Quens by Eli lilly
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)


Conditions:

Chlormadinone acetate (CMA) is a derivative of naturally secreted progesterone that shows high affinity and activity at the progesterone receptor. It has an anti-estrogenic effect and, in contrast to natural progesterone, shows moderate anti-androgenic properties. CMA acts by blocking androgen receptors in target organs and by reducing the activity of skin 5alpha-reductase. It suppresses gonadotropin secretion and thereby reduces ovarian and adrenal androgen production. CMA shows high contraceptive efficacy by inhibiting ovulation due to its ability to suppress or disrupt endogenous gonadotropin secretion and, by this, inhibits follicular growth and maturation. In addition, it suppresses endometrial thickness and increases the viscosity of cervical mucus. Chlormadinone acetate was withdrawn from the market in the USA, but it is still being used in Europe under the name Belara.
Status:
US Previously Marketed
Source:
NALIDIXIC ACID by SUN PHARM INDUSTRIES
(1986)
Source URL:
First approved in 1964

Class (Stereo):
CHEMICAL (ACHIRAL)



Nalidixic acid is a quinolone antibacterial indicated for the treatment of urinary tract infections. Nalidixic acid has marked antibacterial activity against gram-negative bacteria including Enterobacter species, Escherichia coli, Morganella Morganii; Proteus Mirabilis, Proteus vulgaris, and Providencia rettgeri. Pseudomonas species are generally resistant to the drug. It is suggested that nalidixic acid acts by inhibiting bacterial DNA gyrase.
Beta-carotene is found in many foods and is sold as a dietary supplement. Beta-carotene is a carotenoid, weak antioxidant; precursor of vitamin A, which is essential for vision and growth. Used to reduce the severity of photosensitivity reactions in patients with erythropoietic protoporphyria (EPP). Has been used in high-dose antioxidant supplements containing ascorbic acid and vitamin E with zinc in high-risk patients with age-related macular degeneration. Beta-carotene is also used to decrease asthma symptoms caused by exercise; to prevent certain cancers, heart disease, cataracts; and to treat AIDS, alcoholism, Alzheimer’s disease, depression, epilepsy, headache, heartburn, high blood pressure, infertility, Parkinson’s disease, rheumatoid arthritis, schizophrenia, and skin disorders including psoriasis and vitiligo.

Showing 1491 - 1500 of 8583 results