What is this medicine?
TADALAFIL (tah DA la fil) is used to treat pulmonary arterial hypertension. This is a serious heart and lung condition. This medicine helps to improve symptoms and quality of life.
How should I use this medicine?
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. You can take this medicine with or without food. Take your medicine at regular intervals. Take both tablets at the same time, one after the other. Do not split your dose throughout the day. Do not take it more often than directed. Do not stop taking except on your doctor's advice.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
Overdosage: If you think you've taken too much of this medicine contact a poison control center or emergency room at once.
What side effects may I notice from receiving this medicine?
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
changes in hearing
changes in vision
fast, irregular heartbeat
Side effects that usually do not require medical attention (Report these to your doctor or health care professional if they continue or are bothersome.):
stuffy or runny nose
What may interact with this medicine?
Do not take this medicine with any of the following medications:
This medicine may also interact with the following medications:
certain drugs for high blood pressure
certain drugs for the treatment of HIV infection or AIDS
certain drugs used for fungal or yeast infections, like fluconazole, itraconazole, ketoconazole, and voriconazole
certain drugs used for seizures like carbamazepine, phenytoin, and phenobarbital
macrolide antibiotics like clarithromycin, erythromycin, troleandomycin
medicines for prostate problems
rifabutin, rifampin or rifapentine
What if I miss a dose?
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Where should I keep my medicine?
Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.
What should I tell my health care provider before I take this medicine?
They need to know if you have any of these conditions:
eye or vision problems, including a rare inherited eye disease called retinitis pigmentosa
heart disease, angina, a history of heart attack, irregular heart beats, or other heart problems
high or low blood pressure
pulmonary veno-occlusive disease (PVOD)
an unusual or allergic reaction to tadalafil, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
What should I watch for while using this medicine?
Do not change the dose of your medicine without asking your doctor. Call your doctor if your medication is not working for you. This may be a sign that your condition has become worse.
If you notice any changes in your vision while taking this drug, call your doctor or health care professional as soon as possible. Stop using this medicine and call your health care provider right away if you have a loss of sight in one or both eyes.
For males, contact you doctor or health care professional right away if an erection lasts longer than 4 hours or if it becomes painful. This may be a sign of serious problem and must be treated right away to prevent permanent damage.
If you experience symptoms of nausea, dizziness, chest pain, or arm pain after taking this medicine, you should discuss the episode with your doctor or health care professional as soon as possible.
Do not drink more than 4 alcohol-containing drinks in a short period of time when taking this medicine. When taken in excess, alcohol can increase your chances of getting a headache or getting dizzy, increasing your heart rate or lowering your blood pressure.