Have had a quintuple bypass in 2000, and the Watchman Procedure in December, 20165. Am takin g Keppra, 750 mg. twice daily, Plavix 75 mg. at bedtime, as well as an 81mg aspirin. Would taking the recommended dosage of vitamin D create a problem, or interaction? Thanking you in advance for your taking the time to respond to the above. Sincerely, Richard Landry