AlupentSide Effects - XML FEED - Medications.com http://www.medications.com/se/Alupent Recent side effects for Alupent Out of all the other inhalers, this one is by far the best. the o Tue, 03 Jan 2006 16:48:08 -0500 http://www.medications.com/effect/view/12246 Out of all the other inhalers, this one is by far the best. the only side effects I experience are rapid heartbeats, which can cause insomnia when taken at bedtime. http://www.medications.com/effect/view/12246