Hi,
Thanks for posting in HCM.
I understand your concern.
DEXPOTEN is a combined preparation of
dextromethorphan,
pseudoephedrine and triprolidine.
Side-effects of dextromethorphan appear to be rare and may include
dizziness and gastro-intestinal disturbances.
Side-effects of pseudoephedrine include sympathetic hyperactivity such as fear, anxiety,
restlessness, tremor, insomnia, confusion and irritability.
Triprolidine may cause sedation as side effect.
For your mild stomach disturbances, it is advisable for you to take antacids. However, you need to quit smoking for betterment of your health as it may precipitate such symptoms.
Hope the information provided would be helpful.
All the best.