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Adverse reactions at therapeutic doses are usually minimal and transient. On long-term use of Persantine (dipyridamole USP) tablets initial side effects usually disappear. The following reactions in Table 1 were reported in two heart valve replacement trials comparing Persantine (dipyridamole) E tablets and warfarin therapy to either warfarin alone or warfarin and placebo:
Table 1: Adverse Reactions Reported in 2 Heart Valve Replacement
|Tablets / Warfarin||Placebo/ Warfarin|
|Number of patients||147||170|
Other reactions from uncontrolled studies include diarrhea, vomiting, flushing and pruritus. In addition, angina pectoris has been reported rarely and there have been rare reports of liver dysfunction. On those uncommon occasions when adverse reactions have been persistent or intolerable, they have ceased on withdrawal of the medication.
When Persantine (dipyridamole) tablets were administered concomitantly with warfarin, bleeding was no greater in frequency or severity than that observed when warfarin was administered alone. In rare cases, increased bleeding during or after surgery has been observed.
In post-marketing reporting experience, there have been rare reports of hypersensitivity reactions (such as rash, urticaria, severe bronchospasm, and angioedema), larynx edema, fatigue, malaise, myalgia, arthritis, nausea, dyspepsia, paresthesia, hepatitis, thrombocytopenia, alopecia, cholelithiasis, hypotension, palpitation, and tachycardia.
Read the Persantine (dipyridamole) Side Effects Center for a complete guide to possible side effects
No pharmacokinetic drug-drug interaction studies were conducted with Persantine (dipyridamole USP) Tablets. The following information was obtained from the literature.
Adenosine: Dipyridamole has been reported to increase the plasma levels and cardiovascular effects of adenosine. Adjustment of adenosine dosage may be necessary.
Cholinesterase Inhibitors: Dipyridamole may counteract the anticholinesterase effect of cholinesterase inhibitors, thereby potentially aggravating myasthenia gravis.
Read the Persantine Drug Interactions Center for a complete guide to possible interactions
Last reviewed on RxList: 4/18/2008
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