These side effects emerge as a result of orally taking nifedipine. However, if you are using nifedipine ointment for anal fissures, you still might experience some of these side effects due to systemic absorption of the ointment.
Among age groups, elderly might be more susceptible to these side effects. Elderly might also experience a greater hypotension response during therapy. In addition, constipation might be a greater problem in these patients. This is due to the longer half life of nifedipine in elderly (6.7 hours) when compared to younger individuals (3.8 hours).
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