<s>[INST] I have been on lisinopril for a couple of years. (10 mg). About 5 months ago the doctor up it to 20mg. Back in earlier December I started having this painful and scary pins and needle sensation in my back and then traveling to other parts of my body. Could it be caused by the lisinopril? If so should I stop taken it all at once? [/INST] Hi, Well, this is the month of July...I don't know when you wrote your original question or whether your symptoms have since resolved. However, there are some patients who do get tingly feelings throughout their body who are on lisinopril. Therefore, it is possible this could be a side effect of the medication or it could be coming about as a result of an interaction with another medication. It is generally NOT a good idea to stop taking medications (of any sort) cold turkey unless you've spoken with your doctor about the symptoms you're experiencing. There can be other causes to explain feelings of pins and needles. But in case, your doctor feels these uncomfortable sensations are due to the medication he/she may prefer you slowly taper the drug off while starting or replacing your drug with another since the goal is to keep your blood pressure under control. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Dariush Saghafi, Neurologist </s>