Isoptin SR is typically prescribed to help control high blood pressure. Although it cannot cure the condition, the drug does cause blood vessels to relax, improving blood flow and making it easier for the heart to pump blood. This medicine is usually taken once or twice a day. Possible side effects include nausea, dizziness, and constipation.
As with any medicine, side effects are possible with Isoptin SR. However, not everyone who takes the drug will experience side effects. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider. Serious side effects are less common.
Common side effects of Isoptin SR include but are not limited to:
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
Last reviewed by: KristiMonson, PharmD;
List of references (click here):
Isoptin SR [package insert]. Princeton, NJ: Ranbaxy Laboratories;2010 March.
Calan [package insert]. New York, NY: Pfizer Inc.;2011 October.
Food and Drug Administration, Center for Drug Evaluation and Research. Electronic orange book: approved drug products with therapeutic equivalence evaluations. FDA Web site. Available at: http://www.fda.gov/cder/ob/. Accessed March 21, 2007.
Briggs GG, Freeman RK, Yaffe SJ. Drugs in Pregnancy and Lactation. 7th ed. Philadelphia (PA): Lippincott Williams & Wilkins;2005.
National Library of Medicine (US). Drugs and Lactation Database (LactMED). NLM Web site. Available at: http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT. Accessed March 21, 2007.
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