痙 - have a cramp

antispasmodic drug; spasmolytic drug; anticonvulsant drug

writer's cramp

spasmolysis

antispasmodic drug; spasmolytic drug; anticonvulsant drug

to have convulsions

convulsion; cramp; spasm; tic; twitch; fit

gastrospasm; stomach spasm; stomach cramps

vaginismus; vaginal spasm

familial spastic paraplegia

spastic paralysis

spasticity; contracture; (muscle) stiffness

cervical dystonia; spasmodic torticollis