What are the effects of using nyaope?
Initially users feel euphoric or, when using heavier doses, a wonderful sense of relaxation, but the effects soon wear off and another hit is required.
For some the less pleasant side effects include a painful stomach, muscle cramps and generally feeling really ill, but when these ease up, they use again.
Experts say just using it once is enough to get users hooked - similar to heroin addiction.
Withdrawal is said to be especially harrowing and include symptoms of stomach cramps, insomnia, diarrhoea and vomiting.