I bought it for my son as prescribed by the doctor. He bruised his elbow, which caused pain radiating to his shoulder. After taking it myself, I found the pain improved significantly, but one must take care as it can lead to allergies.
Initially, I had headaches after taking this complex, which was prescribed in doses of 1 capsule twice daily. Unable to handle that, I switched to 1 capsule daily after breakfast, and the pains have since vanished.
A good complex of coenzyme forms of B vitamins. I took it due to pain in my heart area, and it helped.
I tried the B complex after previously using separate vitamins. It seems to do its job well, but taking two capsules caused redness in my elbows, knees, and ears. This was followed by bright yellow urine, which I believe is normal.
I purchased these vitamins primarily for my hair and nails, but unexpectedly, they caused severe knee pain, something I had never experienced before. It's quite awful; I should have heeded the negative reviews.