What Causes Opisthotonus?
May be drug related
Detailed Answer:
Hello dear,
Opisthotonus is known to occur in tetanus, rabies, cerebral malaria, neurosyphilis, meningitis, encephalitis, seizures, strychnine poisoning and drugs.
Episodic opisthotonus is rare and may be found with psychiatric illness like catatonia or conversion reaction.
Other possibility may be muscle spasm of back.
Sumatriptan (Imitrex) may be having muscle spasm as side effect. You can change the drug with other migraine medications available.
You need to be examined and evaluated by a neurologist and psychiatrist.
The investigations or spine imaging may be required according to examination.
Diabetes and migraine is to be controlled adequately.
Hope you found the answer helpful.
Regards
Dr Neeraj Kumar
Neurologist