A merchant was yesterday accused of possessing 500 suspected Viagra tablets among a $3 million haul of illegal drugs. Yiu Hing-din, 47, was held when Narcotics Bureau and Health Department officers raided a flat in Kings Road, North Point, on Tuesday, Eastern Court heard. He was charged with possessing Part One poisons in contravention of the Pharmacy and Poisons Ordinance. Police said 500 tablets among the haul were believed to be the sex drug Viagra. If so, it would be the Narcotics Bureau's biggest seizure of the drug. Prosecutor Esther Mak alleged Yiu had imported the pharmaceutical products and intended to sell them. She said the haul included more than 4.5 million tablets classified as Part One poisons, 200,000 units of antibiotics and 400,000 of unregistered pharmaceutical products in tube and tablet form. Magistrate Garry Tallentire adjourned the case to September 30 pending tests on the seized items. Yiu did not enter a plea and was bailed for $100,000 with a surety in the same amount.