hydralazine and hydrochlorothiazide (APRESOLINE ESIDREX)

Medications and the Perils of Too Little Sodium in the Blood
July 2008
Low levels of sodium in the blood are one of the most common laboratory abnormalities and the consequences range from mild and non-specific to life-threatening. The article discusses the symptoms of low blood sodium and lists 53 prescription drugs that can cause it. We urge that both patients and health professionals be alert for symptoms that may signal the onset of hyponatremia if the patient is predisposed to this disorder as a result of their drug therapy or diseases.

Oxybutynin Patches (OXYTROL): A Grossly Overpriced Product For Overactive Bladder
July 2003
You should check the list of drugs that can cause loss of bladder control before starting drug treatment for this condition. You may be able to change from a drug that causes loss of bladder control to a drug that does not or alter the dose. This may be enough to solve the problem.