Yes you may use Glycoflex 3 along with the homeopathics. Both ARTHRO-IONX and PROMAXOL help to reduce pain,and inflammation and stimulate healing. I prefer to start with PROMAXOL and then switch over to ARTHRO-IONX once some improvement is seen. Try to limit the amount of running and jumping while the knees are weak. Usually leash walks are in order to prevent further injury.
The oligotherapeutic mineral base found in the IONX products helps the body to better utilize the other nutritional substances given for a synergistic response and faster healing. The supplements I would also recommend are Vetionx probiotics and Omega 3,6,9. I also like to give a Standard Process product called Ligaplex 2. It is available from licensed health care professionals. Also be sure to give sufficient fresh water that is free of chlorine and fluoride. If you can gradually phase into a grain free diet that can be helpful too. The other thing that is sometimes beneficial is to have a certified veterinary chiropractor check for spinal and hip alignment and make any necessary corrections. It can reduce the stress on the knees.
Please let us know how you progress or if you have any other questions.