Brief Answer: Consult your doctor immidaitely. Detailed Answer: Hi, I have read your query. Although Pravastatin can cause, muscle stiffness, but still it cannot be said firmly in your case because you have mentioned history of herniated disc at c5-6 that occurred 10 months ago. No doubt you remained pain free for 5 months still the possibility of muscle spasm exists due to previously herniated discs. For your proper diagnosis to be made you need to get consultation of doctor, who will do your complete physical examination and advise you x-ray cervical spine AP and Lateral view. Then he will tally all the reports and act accordingly. Your doctor will also consider the pravastatin dose, as this drug may infrequently cause muscle problems (which can rarely lead to very serious conditions called rhabdomyolysis and autoimmune myopathy). You should avoid weight lifting above shoulder, avoid sitting in front of computer for prolong time. Apply hot packs for 30 mins in morning and evening. At-last I would like to say that you should consult your doctor as early as possible. I hope you have got your answer. Thanks. Dr.Singh.

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