Baxter ( BAX) announced a recall of nine lots of heparin sodium injections Friday after the market close. The blood thinners, used for hemodialysis and cardiac invasive procedures, were recalled on Jan. 17 as a precautionary measure because of an increase in the number of adverse reactions that could be related to the product. Adverse patient reactions included nausea, vomiting, diarrhea, decreased or low blood pressure, chest pain, fast heart rate, dizziness, fainting and unresponsiveness, among other things. Some of the reactions may be severe or life threatening according to the company. Baxter said it's conducting a thorough investigation of the reports. Shares closed down $1.03, or 1.7%, at $61, and then fell another 50 cents, or 0.8%, to $60.50 in recent postclose trading.