A man has been remanded in custody accused of contaminating packs of the painkiller Nurofen Plus with anti-psychotic and anti-epileptic drugs.
Christopher McGuire, 30, of no fixed address, appeared in a brief hearing at West London Magistrates' Court.
He spoke only to confirm his name and date of birth.
McGuire is charged with four counts of contamination of goods, and two counts of administering a noxious substance.
The maximum sentence if convicted is ten years in jail.
He was remanded by District Judge John Zani to appear at Southwark Crown Court on 2 December for a plea and case management hearing.
Reckitt Benckiser, manufacturer of the drug, recalled the product on 26 August and halted distribution after discovering five boxes contained other companies' medicines.
It estimated some 250,000 packets were still in customers' hands.
Four of the affected boxes were found to contain the anti-psychotic drug Seroquel XL 50mg and one packet contained Pfizer's anti-epileptic medication, Neurontin, in 100mg capsules.
