taking one aspirin (normal or baby strength) 30 minutes before your first dose of tec is supposed to help reduce / remove most symptoms.
if you get stomach cramps take a paracetamol; any flushing / blushing / itching / anything allergy like - take an anti-histamine.
as said, the only rule for dosing tecfidera is to keep the two doses at least four hours apart.
considering the benefits of eating your tecfidera on a full(-ish) belly, just ensure you take them after / during the two major meals of the day. this is especially true, if you are not a big breakfast consumer.
generally, side effects will come on about 3 to 4 hours after dosing and so if you get to hour five… you made it scott free!
one longer term consideration… there seems to be the notion that getting up to full strength daily dosages is the most important thing to achieve, even if it makes you feel profoundly crappy. i do not share this view.
it is far more important to ensure that once you start tecfidera (or any other DMD) you continue to take it. to help remove the risk of adverse effects that might make you want to quit the meds (or make you puke them up all over yourself!) i would increase your daily dosing gradually. hopefully you have been given a few months of the 120mg capsules to enable this option.
best of luck and do not stress it; the drug is easy to tolerate.