According to the federal department, Telzir shouldn't be used in combination with the antiarrythmic drugs amiodarone, lidocaine or quinidine because it could cause serious and/or life-threatening reactions such as abnormal heart rhythm.
Telzir should also not be used with delavirdine, which is another antiviral drug used to treat H-I-V, because it could reduce delavirdine's effectiveness.
Health Canada says do not stop treatment without consulting with your doctor or healthcare professional.
