The US Federal Drug Administration (FDA) has issued a warning against two products which are marketed as dietary supplements and have been shown to contain potentially harmful pharmaceutical ingredients.
The FDA said that Reumofan Plus and Reumofan, two products which are sold as dietary supplements for treating pain symptoms relating to conditions such as arthritis, muscle pain, osteoporosis, bone cancer, contain dangerous ingredients which were not listed on the labels.
The Administration said that it had received dozens of adverse event reports since it first issued issued a warning in June. These have included death, strokes, liver injury and severe bleeding.
Tests showed that Reumofan Plus contains corticosteroid dexamethasone, non-steroidal anti-inflammatory drug diclofenac sodium, muscle relaxant methocarbamol. Diclofenac sodium and methocarbamol were found in Reumofan Plus Premium. These drugs have been linked to to potentially fatal conditions such as heart attacks, strokes and lethal gastrointestinal conditions.
The FDA said that people who have recently consumed or stopped taking the product should seek professional medical advice.
Both products are made by Mexican firm Rigger and are sold in the US with Spanish and English labels.