How Many Units of Botox Are Needed to Prevent Sweaty Palms?

I would recommend anywhere from 50-100 units per palm.  I take the following in consideration:

1)  Small hand (lower starting dose)

2)  Budget constraints (lower starting dose)

Ultimately with any Botox treatment (cosmetic, hyperhidrosis, migraines, etc.) you want to customize the treatment and set expectations.  Larger doses typically last longer than smaller doses, but there is a upper max to the longevity with the most one can expect is 6 months.  If a lower starting dose results in a shorter duration of relief, then I would recommend increasing the dose with the next treatment.

50-100 units per palm is a typical dosage for hyperhidrosis of palms. It is better to start with the lowest dose you need to achieve satisfactory relief from excess sweating to minimize expense but also to prevent any subtle effect on fine motor movements, which would be relevant for a violin or piano player.

The range appears to be between 50 and 100 units per palm. Most physicians seem to start with 50 units per side and see what result you obtain before increasing the dose. Its effect may last longer than the cosmetic facial Botox treatments, but you shouldn't expect more than six months duration.