This medication is typically used for pulmonary hypertension (a condition in which the pressure in the blood vessel leading from the heart to the lungs rises above normal levels).
Certain heart medication (nitrates) must be avoided while taking this product. If in doubt, consult your pharmacist.
This medication is typically used only once a day. However, your pharmacist may have suggested a different schedule that is more appropriate for you. Take it regularly and continuously to maintain its beneficial effects.
Important: Follow the instructions on the label. Do not use more of this product, or more often, than prescribed. If you forget a dose, take it as soon as you remember, but do not take two doses the same day.
This medication should be swallowed whole. It should not be split, crushed or chewed. This medication may be taken with or without food.
Avoid grapefruit and grapefruit juice during your treatment. Grapefruit can seriously affect how this medication works. Consuming alcohol may intensify the toxicity of this product. Avoid or limit alcohol consumption during treatment.
In addition to its desired action, this medication may cause some side effects, notably:
Each person may react differently to a treatment. If you think this medication may be causing side effects (including those described here, or others), talk to your health care professional. He or she can help you to determine whether or not the medication is the source of the problem.
This product must be kept in its original packaging. As with most medications, this product should be stored at room temperature. Store it in a secure location where it will not be exposed to excessive heat, moisture or direct sunlight. Make sure that any leftover portion is disposed of safely.
Taking this medication during pregnancy may be harmful for the baby. Women of childbearing potential should use an effective contraceptive method during treatment and for several weeks after the end of it. Ask your health care professional for details.
This medication may interact with other medications or supplements, sometimes significantly. Many interactions, however, may be dealt with by a dosage adjustment or a change in medication schedule. Check with your pharmacist before using this medication in combination with any other medications (including non-prescription products), vitamins or natural products.
Blood donation is usually refused during this treatment.
Blood tests must be done regularly while using this medication. A blood test will indicate whether your treatment is having the desired effect. It will also provide the necessary information for adjusting the dosage to the lowest effective dose, thus decreasing the risk of side effects. Be sure to keep all your appointments.
When meeting with any health professional, it is important for you to share the following information:
It is also strongly recommended that you keep an up-to-date list of all the medications you take and carry it with you at all times. This could be useful if you have to see a health professional or need emergency care.
Keep all your medications out of the reach of children and pets and return any unused or expired medications to the pharmacy for proper disposal.