According to a report in The Star, quoting Health Ministry director-general Datuk Dr Noor Hisham Abdullah, diphenhydramine is not allowed in traditional products, such as the plaster which is registered as a traditional product for aches and pains.
He said the scheduled poison is an antihistamine that is controlled under the Poisons Act 1952.
Diphenhydramine is actually used to relieve allergic reactions. Some of the side effects of consumption include rashes, itches and increased sensitivity to sunlight.
Thus, it can only be prescribed by doctors or pharmacists. Others who sell or distribute this substance could face a fine of up to RM25,000 and jail for no more than three years for the first offence.
So, if you're currently using this project, time to stop!