Dear Dr. Andrew Rynne, Good Morning. I m 66 years old, now. I had an infantile paralysis due to Polio at the age of 3 to 5 years. I keep getting pain in my knee of polio affected leg, for the last fortnight. May I take Cartigen Forte (Pharmed) ? Please let me know the dosage & how long I ve to take it & what are its side effects, if any. Or else, what s the medication you advise me to take. With best regards. Dr. CS Reddy, Ph.D. (Agriculture), India.