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

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Showing 21 - 30 of 94 results

Status:
US Previously Marketed
First approved in 1956

Class (Stereo):
CHEMICAL (ACHIRAL)



Ambenonium is a cholinesterase inhibitor with all the pharmacologic actions of acetylcholine, both the muscarinic and nicotinic types. It was marketed under the brand name Mytelase, but was withdrawn from the market in the United States in 2010. Ambenonium, similar to pyridostigmine and neostigmine, is used for the treatment of muscle weakness and fatigue in people with myasthenia gravis.Ambenonium exerts its actions against myasthenia gravis by competitive, reversible inhibition of acetylcholinesterase. The disease myasthenia gravis occurs when the body inappropriately produces antibodies against acetylcholine receptors, and thus inhibits proper acetylcholine signal transmission (when acetylcholine binds to acetylcholine receptors of striated muscle fibers, it stimulates those fibers to contract). Ambenonium reversibly binds acetylcholinesterase at the anionic site, which results in the blockage of the site of acetycholine binding, thereby inhibiting acetylcholine hydrolysis and enhancing cholinergic function through the accumulation of acetycholine at cholinergic synpases. In turn this facilitates transmission of impulses across the myoneural junction and effectively treats the disease.
Mepenzolate is a postganglionic parasympathetic inhibitor. It decreases gastric acid and pepsin secretion and suppresses spontaneous contractions of the colon. It specifically antagonizes muscarinic receptors. Mepenzolate is marketed under the brand name CANTIL. CANTIL is indicated for use as adjunctive therapy in the treatment of peptic ulcer. It has not been shown to be effective in contributing to the healing of peptic ulcer, decreasing the rate of recurrence, or preventing complications.
Status:
US Previously Marketed
Source:
Benzapas by Smith-Dorsey
(1956)
Source URL:
First approved in 1956
Source:
Benzapas by Smith-Dorsey
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)


Benzoylpas (more known as calcium benzoyl-PAS) is a benzoic acid-modified form of para-aminosalicylate, used to treat pulmonary tuberculosis.
Status:
US Previously Marketed
Source:
Preludin by Geigy
(1956)
Source URL:
First approved in 1956
Source:
Preludin by Geigy
Source URL:

Class (Stereo):
CHEMICAL (RACEMIC)


Conditions:

Phenmetrazine is an anti-obesity drug, which was discovered by Boehringer-Ingelheim in 1952 and approved by FDA under the name Preludin. Later on the drug was withdrawn from the market due to the reported cases of abuse. According to some studies, misuse of phenmetrazine turned many young addicts to crime. It is suggested that the drug exerts its effect by inhibiting the monoamine transport.
Status:
US Previously Marketed
Source:
Tritheon by Ortho
(1956)
Source URL:
First approved in 1956
Source:
Tritheon by Ortho
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)


Aminitrozole (Tritheon), also known as nithiamide, for some years has been successfully used in medicated feeds in the prevention of enterohepatitis (blackhead disease) in turkeys. Besides, this drug was studied in human for the treatment of trichomoniasis. Sixteen patients with vaginal trichomoniasis have been treated with Tritheon tablets. As a result, in all the thirteen patients followed, T. vaginitis was recovered after therapy. No untoward side-effects were noted, but the clinical results were uniformly bad.
Status:
US Previously Marketed
Source:
LEVANIL 300MG by UPJOHN
(1961)
Source URL:
First approved in 1956
Source:
Nostyn by Ames
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)

Conditions:

ECTYLUREA is used for the symptomatic treatment of tension and anxiety. It has no convulsant, analgesic or antispasmodic activity in animals. ECTYLUREA in therapeutic amounts has no effect on the autonomic nervous system. It also has no hypnotic effect unless given in a large dose.
Status:
US Previously Marketed
Source:
SUL-SPANSION by SKF
(1961)
Source URL:
First approved in 1956
Source:
Sul-Spansion by Smith Kline & French
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)


Sulfaethidole is an antibacterial agent, indicated for the treatment of urinary tract infection.
Promazine (Sparine) is a phenothiazine neuroleptic used for short-term management of moderate to severe psychomotor agitation and treatment of agitation and restlessness in the elderly. Promazine is an antagonist at types 1, 2, and 4 dopamine receptors, 5-HT receptor types 2A and 2C, muscarinic receptors 1 through 5, alpha(1)-receptors, and histamine H1-receptors. Promazine's antipsychotic effect is due to antagonism at dopamine and serotonin type 2 receptors, with greater activity at serotonin 5-HT2 receptors than at dopamine type-2 receptors. This may explain the lack of extrapyramidal effects. Promazine does not appear to block dopamine within the tuberoinfundibular tract, explaining the lower incidence of hyperprolactinemia than with typical antipsychotic agents or risperidone. Antagonism at muscarinic receptors, H1-receptors, and alpha(1)-receptors also occurs with promazine. Promazine is not approved for human use in the United States. It is available in the US for veterinary use under the names Promazine and Tranquazine.
Status:
US Previously Marketed
Source:
Nilevar by Searle
(1956)
Source URL:
First approved in 1956
Source:
Nilevar by Searle
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)


NORETHANDROLONE, a nandrolone derivative, is a synthetic hormone with anabolic and androgenic properties and moderate progestational activity. It was used to treat, among others, anorexia nervosa, severe burns and trauma, decubitus ulcers, osteoporosis, gastrointestinal diseases. Its list of prescriptions included preparation for and recovery from surgery, bone fracture healing, severe or prolonged illness, and various forms of malnourishment in adults and children. It was withdrawn for the market in most countries in the 1960s, however, it remains viable on the veterinary drug market in Australia.
Status:
US Previously Marketed
Source:
HYDROXYPROGESTERONE CAPROATE by ALLERGAN
(1974)
Source URL:
First approved in 1956

Class (Stereo):
CHEMICAL (ABSOLUTE)