The “Teck Heng Yoo”Pharmacy relocated to Charoenkrung Road in Bangkok and changed its name to 
“Teck Heng Yoo Drugstore.”

At this time, in addition to well-known Krisnaklan Trakilane, other common medications were produced. Many remain well known today, such as a stomach ache mixture, cough syrup, One-One pastilles, Botan pastilles, and Tunjai brand aspirin.