Blepharospasm Initially inj 1.25-2.5 u (0.05-0.1 mL/site) into the medial & lateral orbicularis oculi of the upper lid & into the lateral orbicularis oculi of the lower lid. Max initial dose: 25 u/eye. Max total dose: 100 u every 12 wk.
Hemifacial spasm or VIIth nerve disorders As for unilateral blepharospasm. Max cumulative dose: 200 u in 2 mth period.
Strabismus Recommended vol: 0.05-0.15 mL/muscle. Initial dose: Vertical muscles & horizontal strabismus of <20 prism diopters: 1.25-2.5 u in any 1 muscle; horizontal strabismus of 20-50 prism diopters: 2.5-5 u in any 1 muscle; persistent VIIth nerve palsy duration of ≥1 mth: 1.25-2.5 u in the medial rectus muscle. Subsequent dose: Incomplete paralysis of the target muscle: May be increased up to 2-fold compared to previous dose; max: 25 u/muscle as single inj.
Spasmodic torticollis (cervical dystonia) Individualized dosage. Max total dose: 6 u/kg every 2 mth.
Paed cerebral palsy Childn ≥2 yr 4 u/kg. Max: 200 u at any single treatment session.
Focal spasticity: Upper limb spasticity: Adult Biceps brachii: 100-200 u, up to 4 sites; flexor digitorum profundus: 15-50 u, 1-2 sites; flexor digitorum sublimis: 15-50 u, 1-2 sites; flexor carpi radialis: 15-60 u, 1-2 sites; flexor carpi ulnaris: 10-50 u, 1-2 sites; adductor pollicis & flexor pollicis longus: 20 u, 1-2 sites. Max dose: 360 u.
Lower limb spasticity: Adult Gastrocnemius medial head: 75 u divided in 3 sites; gastrocnemius lateral head 75 u divided in 3 sites; soleus 75 u divided in 3 sites; tibialis posterior 75 u divided in 3 sites; flexor hallucis longus 50 u divided in 2 sites; flexor digitorum longus 50 u divided in 2 sites; flexor digitorum brevis 25 u in 1 site. Max dose: 400 u.
Hyperhidrosis of the axillae 50 u/axillae. Repeat inj not more frequently than every 4 mth, when effects from previous inj subside.
Upper facial lines (glabellar lines, Crow's feet lines, forehead lines) Recommended vol/inj: 0.1 mL/inj site.
Glabellar lines 4 u/0.1 mL in each of 5 sites, 2 in each corrugator muscle & 1 in the procerus muscle for a total dose of 20 u, w/ inj not more frequent than 3-mth inj intervals.
Crow's feet 2-6 u/inj site at 2-3 mm depth. Total dose: 6-18 u/side.
Forehead lines Inj 4 u into 5 sites in the frontalis muscle. Total dose: 20 u. Recommended total dose for forehead lines (20 u) in conjunction w/ glabellar lines (20 u): 40 u. Simultaneous treatment w/ Crow's feet lines: Total dose: 64 u (ie, 20 u for forehead lines, 20 u for glabellar lines, & 24 u for Crow's feet lines). Retreatment time for forehead lines: Approx 4 mth.
Chronic migraine 155-195 u IM w/ 5 u/inj site. Inj should be divided across 7 specific head/neck muscle areas. Recommended retreatment schedule: Every 12 wk.
Overactive bladder 100 u inj into the detrusor muscle via a flexible or rigid cystoscope.
Neurogenic detrusor overactivity 200 u inj into the detrusor muscle via a flexible or rigid cystoscope.