Lisinopril
"PLEASE, mention what the pharmaceutical company your lisinopril is from!  

Sometime over the last few months(?), Lupin Pharmaceutical has changed tablet sizes (I think in all dosages).  My brother is on this medication, has been for 8 years.  He hadn't really noticed the pill size change because he recently changed pharmacies also.  Within the last couple of months, he has had some symptoms that he wasn't sure why he was having.  Primarily, dizziness and lightheadedness, which has also stirred up his anxiety, and fluctuations in BP and heart rate (both going VERY low).  He decreased dose, then stopped taking.  Then BP spiked.  Took lower dose again, and dizziness is back, anxiety is back.  Viscous cycle with little answers at this point."