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Add 2 drops of reagent A; Add 2 drops of reagent B; Add 2 drops of reagent C; A violet color indicates presence of ephedrine or pseudoephedrine; Reagent A - 1% (vol/vol) aqueous acetic acid solution; Reagent B - dissolve 1g Copper(II) sulfate in 100ml water; Reagent C - dissolve 8g of NaOH in 100ml of water (that is 2N NaOH solution) [5] [6] [7]
It is freely soluble in chloroform and insoluble in water; the hydrobromide salt is water-soluble up to 1.5 g/100 mL at 25 °C. [44] Dextromethorphan is commonly available as the monohydrated hydrobromide salt, and is also available in extended-release formulations (sold as dextromethorphan polistirex) contain dextromethorphan bound to an ion ...
Pseudoephedrine, sold under the brand name Sudafed among others, is a sympathomimetic medication which is used as a decongestant to treat nasal congestion. [ 1 ] [ 13 ] [ 2 ] It has also been used off-label for certain other indications, like treatment of low blood pressure .
Monthly sales to a single purchaser not to exceed 9 g of pseudoephedrine base in regulated products; The law gives similar regulations to mail-order purchases, except the monthly sales limit is 7.5 g. As a pure herb or tea, má huáng, containing ephedrine, is still sold legally in the US. The law restricts/prohibits its being sold as a dietary ...
PBMs work with pharmaceutical wholesalers to set up so-called source programs, which control 90% of drug purchasing in the U.S., Oshmyansky explained, noting Cost Plus Drugs will be as open about ...
A decongestant, or nasal decongestant, is a type of pharmaceutical drug that is used to relieve nasal congestion in the upper respiratory tract.The active ingredient in most decongestants is either pseudoephedrine or phenylephrine (the latter of which has disputed effectiveness).
By far the most frequently used products are formulations for mixing with water then applying as sprays. Water miscible, older formulations include: EC Emulsifiable concentrate; WP Wettable powder; SL Soluble (liquid) concentrate; SP Soluble powder; Newer, non-powdery formulations with reduced or no use of hazardous solvents and improved ...
Some alkaloids are more stable as ionic salts than as free base. The salts usually exhibit greater water solubility. Common counterions include chloride, bromide, sulfate, phosphate, nitrate, acetate, oxalate, citrate, and tartrate. Ammonium salts formed from the acid–base reaction with hydrochloric acid are known as hydrochlorides.