In rare cases, injection of Synogel may cause sensitivity (allergy) and in very rare cases, it may cause anaphylactic shock.
In case of any of the following allergy symptoms, see a doctor or nurse immediately:
- Skin lesions, itching
- Swelling of the face, lips or tongue
- Cough, shortness of breath
These complications may occur both during and after the injection.
After intra-articular injection of Synogel, symptoms such as pain, swelling, temporary inflammation, feeling of heat or redness in the treated joint may be observed. These symptoms are temporary and are relieved by joint rest or cooling with ice packs. If any of these symptoms are not relieved for up to 4 days or if symptoms other than those mentioned occur, see your doctor.
Side effects are more likely to occur in people with autoimmune or connective tissue disorders.