Hello,
Pregabalin can cause side effects like unsteadiness, memory loss, lack of coordination etc.
The alternative is non-opioid analgesics like
Acetaminophen and topical analgesics like Lidocaine patch, at a dose of 1.8 % or 5 %-applied over the sites of pain for up to 12 consecutive hours per day.
Capsaicin 8% patch -up to 4 patches are applied once for 30-60 minutes. Over the counter preparations (Iodex)of menthol,
methyl salicylate though weaker have an effect on pain.
Anti-depressants like Duloxetine, Amitryptiline have also been used for chronic pain and benefits are outweighed by side effects in most patients.
Other anti-epileptic drugs besides pregabalin (as you are intolerant), are
Oxcarbazepine, Carabmezapine, Lamotigrine, and lacosamide used for
neuropathic pain with variable success.
These are all prescription drugs. You can additionally go for complementary therapies for chronic pain like acupressure, meditation, yoga, massage, chiropractic, guided energy, and biofeedback.
Hoarseness of voice and weight gain(6 kg) warrants exclusion of
Hypothyroidism ( go for serum free T3,free T4 & TSH level).
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr Tushar Kanti Biswas, Internal Medicine Specialist