Waning memos were sent by the U. S. Food and Drug Administration to five manufacturers of electronic cigarettes, as the makers marketed them illegitimately as stop-smoking aids.

On Thursday, the FDA said that it had an intention to bring drug products under its proper order and control.

The move made by the FDA is the most recent one at asserting its authority upon electronic or e-cigarettes, which are devices powered by batteries, allowing users to breathe in nicotine solution as a substitute to tobacco smoke.

The FDA's Center for Drug Evaluation and Research, Michael Levy informed that the warnings pertained to the Federal Food, Drug and Cosmetic Act violation, which included manufacturing of unconfirmed claims and below standard manufacturing practices.

As per the act, no Company can make claims relating its drugs treating disease like nicotine addiction, until and unless it has been proved that the drug manufactured by them is safe to be taken, by the regulators.

Nevertheless, all five firms have made claims that their products help people who smoke quit it.

He told that the regulatory group was eager to know if e-cigarettes can earn the tag of ‘safe for consumption’ and that if it really helps smokers quit the habit.