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Results 1 - 2 of 2 for Axial muscle stiffness
  1. Promethazine overdose 
    ... tongue movement Large (dilated) pupils with vision difficulty Muscle stiffness and spasms in face or neck
    https://medlineplus.gov/ency/article/002527.htm - Medical Encyclopedia
  2. Prochlorperazine overdose 
    ... heartbeat Rapid heartbeat MUSCLES AND JOINTS Muscle spasms Muscle stiffness Rapid, involuntary movements of the face (chewing, blinking, ...
    https://medlineplus.gov/ency/article/002615.htm - Medical Encyclopedia