The declaration was read by MUI chairman Din Syamsudin, followed by leaders from various Islamic and youth organizations.
They pledged to help the government in its effort to eradicate distribution of narcotic drugs in the country.
Din said the declaration was the decision taken by Muslims in the country to fight narcotic drug distribution and create a younger generation with good character to build the nation.
"To fight narcotic drugs public awareness of the danger of the drugs needs to be increased," he said.
He said he hoped the National Anti-Narcotic Agency (BNN) and the police would support the anti-narcotic movement.
"Right now the distribution of narcotic drugs in the country has come to a very alarming level reaching not only cities but also remote villages and families," he said.
(Reporting by Aprionis/Uu.H-YH/F001)