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

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Showing 10481 - 10490 of 10822 results

Edrophonium is a short and rapid-acting cholinergic drug. Chemically, edrophonium is ethyl (m-hydroxyphenyl) dimethylammonium. Edrophonium is used for the differential diagnosis of myasthenia gravis and as an adjunct in the evaluation of treatment requirements in this disease. It may also be used for evaluating emergency treatment in myasthenic crises. Because of its brief duration of action, it is not recommended for maintenance therapy in myasthenia gravis. It is also useful whenever a curare antagonist is needed to reverse the neuromuscular block produced by curare, tubocurarine, gallamine triethiodide or dimethyl-tubocurarine. It is not effective against decamethonium bromide and succinylcholine chloride. It may be used adjunctively in the treatment of respiratory depression caused by curare overdosage.
Edrophonium is a short and rapid-acting cholinergic drug. Chemically, edrophonium is ethyl (m-hydroxyphenyl) dimethylammonium. Edrophonium is used for the differential diagnosis of myasthenia gravis and as an adjunct in the evaluation of treatment requirements in this disease. It may also be used for evaluating emergency treatment in myasthenic crises. Because of its brief duration of action, it is not recommended for maintenance therapy in myasthenia gravis. It is also useful whenever a curare antagonist is needed to reverse the neuromuscular block produced by curare, tubocurarine, gallamine triethiodide or dimethyl-tubocurarine. It is not effective against decamethonium bromide and succinylcholine chloride. It may be used adjunctively in the treatment of respiratory depression caused by curare overdosage.
Status:
US Previously Marketed
Source:
HISTA-CLOPANE CYCLOPENTAMINE HYDROCHLORIDE by LILLY
(1961)
Source URL:
First approved in 1951
Source:
Clopane HCl by Lilly
Source URL:

Class (Stereo):
CHEMICAL (RACEMIC)


Cyclopentamine is a sympathomimetic alkylamine, classified as a vasoconstrictor. Cyclopentamine was indicated in the past as an over-the-counter medication for use as a nasal decongestant, notably in Europe and Australia, but has now been largely discontinued possibly due to the availability, effectiveness, and safety of a structurally similar drug, propylhexedrine used for relief of congestion due to colds, common cold, hay fever, or other allergies. Cyclopentamine acts as a releasing agent of the catecholamine neurotransmitters norepinephrine (noradrenaline), epinephrine (adrenaline), and dopamine. Cyclopentamine effects on norepinephrine and epinephrine mediate its decongestant effects, while its effects on all three neurotransmitters are responsible for its stimulant properties. Cyclopentamine was acting as nonspecific spasmolytic, similar to papaverine, in the rabbit ileum. It was demonstrated that cyclopentamine was a very weak alpha-adrenergic receptor stimulant and a weak beta-adrenergic receptor blocker. Cyclopentamine also potentiated the auto-inhibition produced by high doses of isoproterenol and the effect lasted as long as the autoinhibition persisted. It was suggested that the blockade by both drugs was the result of a direct action on the beta receptors. When ingested orally in sufficient quantities, cyclopentamine produces similar effects to amphetamine, methamphetamine, and propylhexedrine.
Diphemanil methylsulfate (Prantal), a quarternary amine, is a highly specific parasympathetic blocking agent.
Status:
US Previously Marketed
Source:
Ambodryl HCl by Parke-Davis
(1953)
Source URL:
First approved in 1951
Source:
Ambodryl by Parke Davis
Source URL:

Class (Stereo):
CHEMICAL (RACEMIC)


Conditions:

Bromodiphenhydramine also known as bromazine, is an antihistamine and anticholinergic agent, which was used to under brand name ambordyl. Ambordyfor was indicated for the treatment of allergic symptoms, but that usage, was discontinued. It was shown, that bromodiphenhydramine competed with free histamine for binding at HA-receptor sites and lead to a reduction of the negative symptoms brought on by histamine HA-receptor binding.
Status:
US Previously Marketed
Source:
Asterol by Hoffmann-La Roche
(1951)
Source URL:
First approved in 1951
Source:
Asterol by Hoffmann-La Roche
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)


Diamthazole is an antifungal drug that was used for the treatment of tinea pedis. The drug was withdrawn from the market, because it was associated with neuropsychiatric adverse reactions.
Status:
US Previously Marketed
Source:
Quotane by Smith Kline & French
(1951)
Source URL:
First approved in 1951
Source:
Quotane by Smith Kline & French
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)


Conditions:

Dimethisoquin (also known as Quinisocaine and QUOTANE) is a topical anesthetic used as an antipruritic. It was shown that dimethisoquin inhibits nicotinic acetylcholine receptors (alpha4/beta4 and alpha4/beta2) with the maximum inhibition potency occurring for the α4β4 subtype.
Status:
US Previously Marketed
Source:
Evans Blue by Parke Davis
(1951)
Source URL:
First approved in 1951
Source:
Evans Blue by Parke Davis
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)



Evans Blue (EBD) is an azo dye which has a very high affinity for serum albumin. It can be useful in physiology in estimating the proportion of body water contained in blood plasma. Evans Blue Dye is widely used to study blood vessel and cellular membrane permeability as it is non-toxic, it can be administered as an intravital dye and it binds to serum albumin – using this as its transporter molecule. The EBD–albumin conjugate (EBA) can be: (i) identified macroscopically by the striking blue colour within tissue; (ii) observed by red auto-fluorescence in tissue sections examined by fluorescence microscopy; and (iii) assessed and quantified by spectrophotometry for serum samples, or homogenised tissue. has recently been utilised in mdx mice to identify permeable skeletal myofibres that have become damaged as a result of muscular dystrophy. EBD has the potential to be a useful vital stain of myofibre permeability in other models of skeletal muscle injury and membrane-associated fragility. Evans Blue is a potent inhibitor of L-glutamate uptake into synaptic vesicles. It also inhibits AMPA and kainate receptor-mediated currents (IC50 values are 220 and 150 nM respectively). P2X-selective purinoceptor antagonist.
Status:
US Previously Marketed
First approved in 1951

Class (Stereo):
CHEMICAL (ACHIRAL)

Zolamine is an antihistamine with local anesthetic properties. Zolamine is reported to have a low incidence of side effects and is used clinically both as an antihistaminic and a topical local anesthetic.
Status:
US Previously Marketed
Source:
Cer-O-Cillin Sodium by Upjohn
(1950)
Source URL:
First approved in 1950
Source:
Cer-O-Cillin Sodium by Upjohn
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)


ALMECILLIN (also known as penicillin O) is an antibiotic that can be safely substituted for penicillin G in instances of hypersensitivity reactions to the latter.

Showing 10481 - 10490 of 10822 results