RUB A535 (also known as Antiphlogistine) is a rubefacient introduced in 1919 and manufactured by Church & Dwight in Montreal, Quebec, Canada.[1] While little known outside of Canada, it is used there for the treatment of tough muscle pain, arthritic pains, rheumatic pains, bursitis, lumbago, etc.[2][3] Church and Dwight say on their website that nearly all the research, development and production of RUB A535 is carried out in Canada. Patients who are allergic to salicylates (ASA based drugs, such as aspirin), or who are taking anticoagulant medications should avoid the use of the product. It is also recommended to not use it more than 3–4 times a day.
Ingredients
The active ingredients in RUB A535 are camphor, eucalyptus oil, menthol, and methyl salicylate