Why Should a Person Not Use Dysport or Botox if They Have an Allergy to Cow Milk?

It is not an allergy to cow's milk, it is actually an allergy to the cow's milk protein.  This is only in Dysport and not in Botox.

Lactose intolerance causes bloating after consuming milk products.  This is not a true milk allergy.  If this is what you have, Botox, Dysport and Xeomin should all be safe to use.

The incidence of allergy to neuromodulators like Botox and Dysport is extremely low.  In fact, after treating thousands of patients, I have never seen an occurrence.  In years past, bovine collagen (Zyderm, Zyplast) was the only FDA approved filler available, and skin testing was required to make sure that patients with bovine allergies would not suffer adverse effects.  There are no such precautions or cross-reactivities with neuromodulators.

Botox and Xeomin are safe for people with a true milk allergy. The neurotoxin in Dysport is suspended in lactose (milk sugar), which will not result in problems for individuals who are lactose intolerant (becoming gassy, bloated when eating dairy). This is because lactose intolerance is specific for gastrointestinal system and is not a true allergy (hives, difficulty breathing, low blood pressure).

Dysport has a small amount of cow's milk protein so anyone allergic to cow's milk protein should therefore avoid Dysport. This allergy is very rare and it is not the same as the more common condition known as lactose intolerance.