Even though Traptox is generally safe in experienced hands, there are potential responses that patients should understand:
Typical, Mild Effects
These occur in a significant minority of patients and usually resolve on their own:
- Tenderness at the injection site
- Minor bruising
- Temporary mild weakness in the trapezius
Because the trapezius muscle contributes to shoulder and neck positioning, some patients may notice slight changes in shoulder mechanics for a short period. This is expected and part of the way the muscle adapts to reduced overactivity.
Less Common Effects
In rarer cases, patients may experience:
- Asymmetry between sides as muscles adjust
- Mild local discomfort or fatigue
Rare but Potential Risks
Serious complications are extremely uncommon, but may include:
- Allergic reaction (very rare)
- Diffusion of toxin to adjacent muscles causing unintended weakness
These are most often linked to incorrect injection technique or dosing rather than the toxin itself.