International Ethical Labs. BrandsUpdated: November 8, 2013 International Ethical Labs. manufacturers the following brands:Despec Despec DM Despec EDA Despec Tablet Relagesic Tencon GenericsBack to TopInternational Ethical Labs. manufacturers the following generics:Dextromethorphan Guaifenesin Paracetamol Phenylephrine Pseudoephedrine News Features Slideshows FDA Issues New E-Cig RulesGood News for Kids Born by IVFHow Diet Could Affect Dialysis Bad MedicineShow Me the Sjogren's SyndromeCan Alzheimer's Disease Be Prevented? Power Outage: What You Need to Know5 Common Football InjuriesVaccine Myths - Busted!