as per the details u have submitted, its very uncommon and rare phenomenon to expect precipitation of asthma, dicetel is pinaverium bromide , used as a smooth muscle relaxant
which acts by blocking of calcium channels. practically it has nothing to do with precipitation of asthma, instaed i advice you to look for other causes that might have precipitated your asthma.
only few cases will report drowsiness
and dry mouth.
what i can say is most of times asthma will be precipitated during evening times and early hours of morning, so its nothing but severe asthma
followed by trigeering factor like cool weather or exercise..
i think so... any way consult a pulmonologist
for further clarification.