1 0.3-5 mg at bedtime is a typical dose. 2  In children with insomnia due to delayed sleep onset, melatonin 5 mg at 6:00 PM daily. 3  In children with developmental disorders (including cerebral palsy, autism, and intellectual disabilities), melatonin 5 mg at 8:00 PM daily.
Cocaine is a weakly alkaline compound (an  alkaloid ), and can therefore combine with acidic compounds to form various salts. The hydrochloride (HCl) salt of cocaine is by far the most commonly encountered, although the sulfate (-SO 4) and the nitrate (-NO 3) are occasionally seen.t is commonly snorted, inhaled, or injected into the veins. Mental effects may include loss of contact with reality, an intense feeling of happiness, or agitation. Physical symptoms may include a fast heart rate, sweating, and large pupils.
Cocaine is derived from the shrub Erythroxylon, of which over 200 species are known. Cocaine is the main alkaloid present in Erythroxylon coca which grows in South America (mainly Colombia, Bolivia and Peru) and other tropic regions.It is obtained from an extract of the leaves, which is then hydrolysed and esterified with methanol and benzoic acid to produce the hydrochloride salt of cocaine.ocaine is the main alkaloid present in Erythroxylon coca which grows in South America (mainly Colombia, Bolivia and Peru) and other tropic regions. It is obtained from an extract of the leaves, which is then hydrolysed and esterified with methanol and benzoic acid to produce the hydrochloride salt of cocaine.