Hi. Thanks for your query and your concern for your friend. Pain - nausea and slow digestion, feeling sickness after dinner, loss of weight, eats only once a day due to he works, probably is afraid to eat due to pain- your question- anything else he can take other than pm s. I would advise you to consult a good Doctor who can examine him properly clinically and physically, this can give lot of diagnostic possibilities : like abdominal tuberculosis, intestinal obstruction, blind loo syndrome and such. This will give a guideline for the necessary investigations like: Blood, urine, stool, enteroclysis, USG, CT scan only of necessary. Once the diagnosis is done, the further targeted treatment is possible. This will help him to get a cure and not the temporary relief.