Brand Name: Cialis.
Generic Name: Tadalafil.
This medication description is not meant for treatment prescription without the intervention of a speTadalafilt

Common Uses
Tadalafil is an oral drug for male impotence, also known as erectile disfunction. It works by dilating blood vessels in the penis, allowing the inflow of blood needed for an erection.

How to Take
Doses range from 5 milligrams to 20 milligrams, depending on the drug's effect. The recommended starting dose is 10 milligrams.
Take Tadalafil only before sexual activity. The manufacturer recommends a maximum of one dose per day. If you're taking certain drugs that affect the liver, such as ritonavir (Norvir) or ketoconazole (Nizoral), the maximum recommended dose is 10 milligrams no more than once every 3 days.
If you have moderate kidney impairment, the recommended starting dose is 5 milligrams once a day, up to a maximum of 10 milligrams once every 2 days. If you have severe kidney impairment or need dialysis, the maximum recommended dose is 5 milligrams once a day. No dosage adjustment is required if you have mild kidney problems.
If you have mild or moderate liver impairment, your total daily dose should not exceed 10 milligrams once a day. If your liver is severely impaired, you will not be able to use Tadalafil.

Warning and Precautions
If you have heart problems severe enough to make sexual activity a danger, you should avoid using Tadalafil. If you take Tadalafil and develop cardiac symptoms (for example, dizziness, nausea, and chest pain) during sexual activity, do not continue. Alert your doctor to the problem as soon as possible.
Because Tadalafil has not been studied in people with cardiovascular disease, it's best to avoid Tadalafil if you've had a stroke or heart failure within the past 6 months, or a heart attack within the past 3 months. Be equally cautious if you have severe high or low blood pressure, heartbeat irregularities, or unstable angina (crushing heart pain that occurs at any time). If you develop angina after taking Tadalafil, seek medical attention immediately.
If you have severe kidney or liver problems, a bleeding disorder, stomach ulcer, or an inherited retinal disorder such as retinitis pigmentosa, use Tadalafil with caution. Its safety under these circumstances has not yet been studied.
Rare cases of prolonged and sometimes painful erections (known as priapism) have been reported with drugs similar to Tadalafil. If you develop an erection that lasts more than 4 hours, seek medical treatment immediately. Otherwise, permanent damage and impotence could result.
If you have a condition that might result in long-lasting erections, such as sickle cell anemia, multiple myeloma (a disease of the bone marrow), or leukemia, use Tadalafil with caution. Also use caution if you have a genital problem or deformity such as Peyronie's disease.
Remember that Tadalafil offers no protection from transmission of sexually transmitted diseases, such as HIV, the virus that causes AIDS.

Missed Dose
Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Do not take extra medicine to make up the missed dose.

Overdose
If you suspect an overdose, seek medical attention immediately. Large doses of Tadalafil (up to 500 milligrams) resulted in similar side effects as regular doses.

Storage
Store Tadalafil at 77 degrees F (25 degrees C). Brief storage at temperatures between 59 and 86 degrees F (15 and 30 degrees C) is permitted. Store away from heat, moisture, and light. Do not store in the bathroom. Keep Tadalafil out of the reach of children and away from pets.

Possible Side Effects
Common side effects: dizziness; flushing; headache; heartburn; mild back or muscle pain; stomach upset; stuffy or runny nose. Seek medical attention right away if any of these severe side effects occur: severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; fainting; fast or irregular heartbeat; prolonged, painful erection; red, swollen, blistered, or peeling skin; ringing in the ears; severe or persistent back or muscle pain; severe or persistent dizziness; severe or persistent vision changes; sudden decrease or loss of vision in one or both eyes; sudden hearing loss.

More Information
The information given above is a summary. Your pharmacist can provide more information about Tadalafil. Do not share this medicine with others for whom it was not prescribed. Do not use this medicine for other health conditions. If using this medicine for an extended period of time, obtain refills before your supply runs out.