Cialis is a popular medicine that is also widely known under the generic name of Tadalafil. This medicine belongs to a wide class of drugs called muscle relaxants. This drug especially concentrates on the muscles in the patient’s penis. .
Cialis Indications

Cialis is a medicine that is regularly prescribed to patients who are in need of an effective treatment of impotence and / or erectile dysfunction. This drug achieves its goal by relaxing the patient’s penile muscles, thus causing a higher amount of blood to flow into the penis. In this way, a treatment with Cialis is able to facilitate and maintain an erection. However, this medicine might also be used for other purposes that have not been listed here. Ask your personal physician for further information.
Cialis Warnings

Due to the effect of this medicine (Cialis), the erection can sometimes becomes incontrollable (in some cases it lasts for a couple of long hours). If you have had an erection that has lasted more than 4 hours, you should alert your personal physician as soon as possible, because such an erection could damage the penis.
If you are experiencing fainting, dizziness or chest pains you must not continue your regular sexual activity, as these symptoms are probably due to a dangerously low blood pressure (that could lead to stroke or to heart attack). Cialis should not be used by women, as it can do no good to a female patient.
Before you start to follow a treatment with Cialis, you should alert your personal doctor if you are suffering from any of the following medical disorders:
Have had a heart attack
Heart disorders such as heart malfunctions, angina, arrhythmias
Had a stroke
Have an abnormally high or low blood pressure that cannot be properly controlled
Blood clotting disorder
Kidney disorders
Liver problems
Cell problems (for example leukemia, Sickle cell anemia)
Has retina pigmentation
Stomach ulcers

If you are suffering from any of the medical disorders that have been listed here, you might not be allowed to start using this product, or you might have to be prescribed (administered) a lower dose of Cialis. You healthcare provider might also want to closely monitor your treatment with this medicine to see if this drug is adversely affecting your disorder in any harmful way.
Elderly patients (who are over 65) are usually more prone to experiencing the medicine’s regular side effects. Grapefruit can sometimes be harmful if it is combined with Cialis. You should alert your personal physician before starting a treatment with this medicine if you are currently following a diet that contains grapefruit or any other grapefruit-based products (such as grapefruit juice, grapefruit cakes, etc). In some cases, the interaction between this product and grapefruit has had lethal effects.
Cialis Intake Guidelines

Ask your doctor how and when it is best for you to take Cialis (Tadalafil). You must not disobey any of his or her instructions. If you fail to understand some of them, you should ask a pharmacist, a doctor or a nurse for further information.

It is best that you accompany each dose of Cialis that you take with a full glass of water. You must not stop your treatment with this drug without your doctor’s consent, even if you start to feel better after only a few days of treatment. You should store this drug away from the children’s reach and away from heat and moisture.

Because Cialis is seen as an effective solution to impotence and other erectile dysfunctions, this medicine should be taken before starting a sexual activity. This medicine’s effects can sometimes last for 3 days (36 hours). This drug may be taken in either on a full or an empty stomach as it is not known to cause stomach upset.

You should avoid mixing Cialis with any alcohol based products, because this combination can sometimes lead to dizziness, headaches, low blood pressure and increase in heart rate. If you develop angina, dizziness or nausea while performing a sexual activity you must discontinue it at once. Stop using this medicine and alert your personal physician as soon as possible.
Cialis Dosage
Ask your personal doctor to tell you the dose of Cialis that suits you best. You must not change this dose in any way. You can also rely on the instructions that are written on the medicine’s label.

What drug(s) may interact with Tadalafil?
Do not take tadalafil if you are taking the following medications:
•nitroglycerin-type drugs for the heart or chest pain such as amyl nitrite, isosorbide dinitrate, isosorbide mononitrate, nitroglycerin, even if these are only taken occasionally

Tadalafil may also interact with the following medications:
•alpha blockers, such as alfuzosin (UroXatral®), doxazosin (Cardura®), prazosin (Minipress®), or terazosin (Hytrin®), used to treat high blood pressure or an enlarged prostate.
•bosentan
•certain antibiotics such as clarithromycin, erythromycin, troleandomycin
•certain drugs used for seizures such as carbamazepine, phenytoin, and phenobarbital
•cimetidine
•cisapride
•diltiazem
•grapefruit juice
•medicines for fungal infections (fluconazole, itraconazole, ketoconazole, voriconazole)
•mibefradil
•nicardipine
•certain medicines for the treatment of HIV infection or AIDS
•quinidine
•rifabutin, rifampin or rifapentine
•some drugs for treating depression, anxiety or other mood problems (examples: fluoxetine, fluvoxamine, nefazodone)
•verapamil

Tell your prescriber or health care professional about all other medicines you are taking, including non-prescription medicines, nutritional supplements, or herbal products. Also tell your prescriber or health care professional if you are a frequent user of drinks with caffeine or alcohol, if you smoke, or if you use illegal drugs. These may affect the way your medicine works. Check with your health care professional before stopping or starting any of your medicines.

What side effects may I notice from receiving Tadalafil?
Side effects that you should report to your prescriber or health care professional as soon as possible:
•changes in hearing such as loss of hearing or ringing in ears
•changes in vision such as loss of vision, blurred vision, eyes being more sensitive to light, or trouble telling the difference between blue and green objects or objects having a blue color tinge to them
•chest pain or palpitations
•difficulty breathing, shortness of breath
•dizziness
•eyelid swelling
•prolonged erection (lasting longer than 4 hours)
•skin rash, itching

Side effects that usually do not require medical attention (report to your prescriber or health care professional if they continue or are bothersome):
•back pain
•flushing
•headache
•indigestion
•muscle aches
•stuffy or runny nose

What should I watch for while taking Tadalafil?
If you notice any changes in your vision while taking this drug, notify your prescriber or health care professional as soon as possible. Stop using tadalafil right away if you have a loss of sight in one or both eyes. Contact your healthcare provider immediately.

Contact your physician immediately if the erection lasts longer than 4 hours or if it becomes painful. This may be a sign of priapism and must be treated immediately to prevent permanent damage.

If you experience symptoms of nausea, dizziness, chest pain or arm pain upon initiation of sexual activity after tadalafil use, you should refrain from further activity and should discuss the episode with your prescriber or health care professional as soon as possible.

Do not drink alcohol to excess (examples, 5 glasses of wine or 5 shots of whiskey) when taking tadalafil. 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.
Do not change the dose of your medication. Please call your prescriber or health care professional to determine if your dose needs to be reevaluated.

Using tadalafil does not protect you or your partner against HIV infection (the virus that causes AIDS) or other sexually transmitted diseases.