Product Information
Registration Status: ActiveSIN03387P
ALCOUGH MIXTURE is approved to be sold in Singapore with effective from 1989-06-21. It is marketed by ALCARE PHARMACEUTICALS PTE LTD, with the registration number of SIN03387P.
This product contains Ephedrine 6mg/5ml, and Guaiphenesin 50mg/5ml in the form of SOLUTION. It is approved for ORAL use.
This product is manufactured by SUNWARD PHARMACEUTICAL PTE LTD in SINGAPORE.
It is an Over-the-counter Medicine that can be freely obtained from any retailer
Product Reference
Important Note: For generic product, the SPC/PIL provided may not be brand specific.
{{/items}} {{^items}}Description
An alpha- and beta-adrenergic agonist that may also enhance release of norepinephrine. It has been used in the treatment of several disorders including asthma, heart failure, rhinitis, and urinary incontinence, and for its central nervous system stimulatory effects in the treatment of narcolepsy and depression. It has become less extensively used with the advent of more selective agonists.
Indication
Ephedrine commonly used as a stimulant, appetite suppressant, concentration aid, decongestant, and to treat hypotension associated with anaesthesia.
Mechanism of Action
Ephedrine is a sympathomimetic amine - that is, its principal mechanism of action relies on its direct and indirect actions on the adrenergic receptor system, which is part of the sympathetic nervous system. Ephedrine increases post-synaptic noradrenergic receptor activity by (weakly) directly activating post-synaptic α-receptors and β-receptors, but the bulk of its effect comes from the pre-synaptic neuron being unable to distinguish between real adrenaline or noradrenaline from ephedrine. The ephedrine, mixed with noradrenaline, is transported through the noradrenaline reuptake complex and packaged (along with real noradrenaline) into vesicles that reside at the terminal button of a nerve cell. Ephedrine's action as an agonist at most major noradrenaline receptors and its ability to increase the release of both dopamine and to a lesser extent, serotonin by the same mechanism is presumed to have a major role in its mechanism of action.
Pharmacokinetics
- Absorption
- 85%
- Distribution
- Metabolism
- Elimination
Toxicity
Cardiovascular: tachycardia, cardiac arrhythmias, angina pectoris, vasoconstriction with hypertension
Active Ingredient/Synonyms
(-)-Ephedrine | (1R,2S)-1-Phenyl-1-hydroxy-2-methylaminopropane | L-Ephedrine | L-erythro-2-(Methylamino)-1-phenylpropan-1-ol | L(−)-ephedrine | Ephedrine |
Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.
Description
An expectorant that also has some muscle relaxing action. It is used in many cough preparations. [PubChem]
Indication
Used to assist the expectoration of phlegm from the airways in acute respiratory tract infections.
Mechanism of Action
Guaifenesin may act as an irritant to gastric vagal receptors, and recruit efferent parasympathetic reflexes that cause glandular exocytosis of a less viscous mucus mixture. Cough may be provoked. This combination may flush tenacious, congealed mucopurulent material from obstructed small airways and lead to a temporary improvement in dyspnea or the work of breathing.
Pharmacokinetics
- Absorption
- Rapidly absorbed from the GI tract
- Distribution
- Metabolism
- Rapidly hydrolyzed (60% within seven hours) and then excreted in the urine, with beta-(2-methoxyphenoxy)-lactic acid as its major urinary metabolite.
- Elimination
Toxicity
LD50 1510 mg/kg (rat, oral)
Active Ingredient/Synonyms
Glyceryl guaiacolate | guaiphenesin | Hustosil | Guaifenesin |
Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.