Dear patient,
Thanks for your health concerns. Drotaverine is usually well tolerated, however occasionally it can cause arrhythmia, arterial hypotension, palpitations,
allergic dermatitis,
constipation, sweating, flushing amongst others, since it is a smooth
muscle relaxant. You should discuss with your doctors about this possibility if no other causes are found.
Yours truly,
Dr Brenes-Salazar MD
Cardiology
Mayo Clinic MN