Print Page

Products found to contain undeclared medicines

Canada: Foreign Product Alerts: Weekend Warrior and Lian Zhan Qi Tian capsules - contain undeclared drug substance thiosildenafil and sildenafil respectively
Weekend Warrior and Lian Zhan Qi Tian capsules are products promoted for sexual enhancement, and were found to contain undeclared thiosildenafil and sildenafil respectively. Sildenafil is a prescription drug used to treat erectile dysfunction and should only be taken under the supervision of a healthcare professional. Sildenafil should not be used by individuals taking any kind of nitrate drug (e.g., nitroglycerine) as it can cause potentially life-threatening low blood pressure. Individuals with heart problems are at increased risk of cardiovascular side effects such as heart attack, stroke, chest pain, high blood pressure and abnormal heartbeat. Other side effects include headache, facial flushing, indigestion, dizziness, abnormal vision, and hearing loss. Consumers who have these products are advised not to use them, and should consult with a healthcare professional if they have concerns about their health related to the use of these products.

Please refer to the following website in Health Canada for details:

In Hong Kong, the above products are not registered pharmaceutical products. Related news has been released by the TGA and the US FDA, and were posted on the Drug Office website on 18 February 2014 and 8 March 2014 respectively.

Ends/ Friday, July 11, 2014
Issued at HKT 13:00
Related Information:
The United States: Public Notification: Weekend Warrior Contains Hidden Drug Ing... Posted 2014-03-08
Australia: Lian Zhan Qi Tian capsules - Safety Advisory - contain the undeclared... Posted 2014-02-18