Hi ga29, I'm thrilled to hear your fusion seems to have resolved your neuropathy!! Oh let it be true! Sudafed is "Pseudoephedrine, a sympathomimetic drug of the phenethylamine and amphetamine chemical classes. It may be used as a nasal/sinus decongestant, as a stimulant, or as a wakefulness-promoting agent in higher doses." Epinephrine is "A hormone secreted by the adrenal medulla that is released into the bloodstream in response to physical or mental stress, as from fear or injury. It initiates many bodily responses, including the stimulation of heart action and an increase in blood pressure, metabolic rate, and blood glucose concentration." So both stimulants. I have it written in my chart that I have a reaction to epinephrine. My heart beats almost double and then that gives me chest pain. It also causes anxiety. Dentists use this a lot in their injections and it's used a lot in suturing wounds b/c it stops heavy bleeding which can obscure the site the provider needs to see well. I too am on Morphine and then I take Gabapentin along w/ other drugs such as daily Prednisone and Ridaura, a demodifying anti-rheumatic drug (DMARD) which are both immunosuppressant medications. I will be praying for a complete and very quick complete recovery for you! Be safe and many blessings, Sunnyflower