The US House of Representatives has given its final nod to a bill that mandates child-resistant packaging for bottles of liquid nicotine used in e-cigarettes.
The Child Nicotine Poisoning Prevention Act of 2015 was introduced by senator Bill Nelson and is now headed for an approval from President Barack Obama.
The bill proposed the use of childproof caps for the liquid nicotine bottles in order to ensure that children are not exposed to the harmful contents.
Nelson said: "A few drops of this stuff can cause a child to become extremely ill.
"Requiring childproof caps on these bottles is just common sense."
Liquid nicotine in concentrated form is usually available in easy-to-open, brightly coloured vials and have appealing flavours, including Yummy Gummy, Cotton Candy and Tutti Frutti.
Those are used in refillable cigarettes that heat the liquid and turn those into vapour for inhalation.
The bill necessitates that all such vials containing nicotine should be packed accordingly so that children under five years of age are unable to open those.
This follows reports of nicotine and poisoning exposure incidents in the country amounting to around 2,300 cases in young children in 2014, reports The Wall Street Journal.
Incidents involving consumption of liquid nicotine has also resulted in deaths, according to the American Association of Poison Control Centers (AAPCC).
AAPCC estimates indicated that calls to poison control centers for liquid nicotine exposures have increased in recent years. While it was just one call a month in September 2010, records for March 2015 have noted the average to be 318 calls a month.