Does a j tube alleviate the symptoms of gastroparesis?

Can help: In the 1980s, the 5‐hydroxytryptamine 4 (5‐HT4) agonist cisapride was marketed and was considered to be a first‐line option in drug treatment of gastroparesis. In drug refractory cases, nutritional support via jejunostomy (J)‐tubes is a possible alternative.A gastric pacemaker is also a possibility, especially if the gastroparesis is due to diabetes.

Yes + provides food: A "j" tube is placed into the jejunum, a part of the small intestine located beyond the stomach. Food can be absorbed in the intestine without needing the stomach to fill up (and fail to empty adequately).