Who should avoid taking Alecensa? Do not use Alecensa if you have a known allergy to any of the ingredients., Alecensa should not be used in pregnancy. Female patients should avoid pregnancy during treatment and for one week after discontinuation. Visit our birth control page for more information. Male patients should use contraception during therapy and for three months after discontinuation., Female patients should avoid pregnancy during treatment and for one week after discontinuation. Visit our birth control page for more information., Male patients should use contraception during therapy and for three months after discontinuation. Female patients should avoid pregnancy during treatment and for one week after discontinuation. Visit our birth control page for more information., Male patients should use contraception during therapy and for three months after discontinuation. What are the risks? Tell your doctor if you experience any of the following adverse effects. They could reduce your dose, interrupt your therapy, or discontinue your treatment. Symptomatic bradycardia Slowed heart rate (less than 60 beats per minute) Low blood pressure Chest discomfort Lightheadedness Shortness of breath Muscle pains Difficulty breathing Cough Fever, Symptomatic bradycardia Slowed heart rate (less than 60 beats per minute) Low blood pressure Chest discomfort Lightheadedness Shortness of breath, Slowed heart rate (less than 60 beats per minute), Low blood pressure, Chest discomfort, Lightheadedness, Shortness of breath, Muscle pains, Difficulty breathing, Cough, Fever, Alecensa treatment can cause an increase in liver enzymes. Your doctor should periodically monitor your liver., Alecensa treatment can cause your kidney function to decrease. Your doctor should monitor your kidney function. Symptomatic bradycardia Slowed heart rate (less than 60 beats per minute) Low blood pressure Chest discomfort Lightheadedness Shortness of breath, Slowed heart rate (less than 60 beats per minute), Low blood pressure, Chest discomfort, Lightheadedness, Shortness of breath, Muscle pains, Difficulty breathing, Cough, Fever Slowed heart rate (less than 60 beats per minute), Low blood pressure, Chest discomfort, Lightheadedness, Shortness of breath