Diltiazem Hydrochloride CDSide Effects - XML FEED - Medications.com http://www.medications.com/se/Diltiazem+Hydrochloride+CD Recent side effects for Diltiazem Hydrochloride CD Taking Diltiazem CD, 120 mg once oer day for Premature Atrial Con Mon, 27 Aug 2007 14:06:58 -0400 http://www.medications.com/effect/view/23228 Taking Diltiazem CD, 120 mg once oer day for Premature Atrial Contractions P.A.C. After two days my exercise induced asthma got much worse. Nils A http://www.medications.com/effect/view/23228