What is Cialis?
Cialis is the trade name for a drug called Tadalafil. Cialis is one of a class of drugs known as PDE-5 (Phosphodiesterase type 5) inhibitors. Cialis is indicated for the treatment of erectile dysfunction (ED, impotence) and indicated for the treatment of the signs and symptoms of benign prostatic hyperplasia (BPH, enlarged prostate). Cialis(Tadalafil) relaxes muscles and increases blood flow to particular areas of the body. Another brand of Tadalafil is Adcirca, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women.
Aside from Cialis, the other drugs in this class are Viagra (Sildenafil) and Levitra (Vardenafil).
- You should not use Cialis if you are allergic to Tadalafil.
- Do not take tadalafil if you are using a nitrate drug for chest pain or heart problems. This includes nitroglycerin (Nitro Dur, Nitrolingual, Nitrostat, Transderm Nitro, and others), isosorbide dinitrate (Dilatrate, Isordil, Isochron), isosorbide mononitrate (Imdur, ISMO, Monoket), or recreational drugs such as amyl nitrate or nitrite (“poppers”). Taking Cialis with a nitrate medicine can cause a sudden and serious decrease in blood pressure.
- If you become dizzy or nauseated during sexual activity, or if you have pain, numbness, or tingling in your chest, arms, neck, or jaw, stop and call your doctor right away. You could be having a serious side effect of tadalafil .
- Cialis can decrease blood flow to the optic nerve of the eye, causing sudden vision loss. This has occurred in a small number of people taking tadalafil, most of whom also had heart disease, diabetes, high blood pressure, high cholesterol, or certain pre-existing eye problems, and in those who smoke or are over 50 years old. It is not clear whether tadalafil is the actual cause of vision loss.
- FDA pregnancy category B. Cialis is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment with Adcirca.
- It is not known whether tadalafil passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.
To make sure Cialis is safe for you, tell your doctor if you have any of these other conditions:
- heart disease or heart rhythm problems, coronary artery disease;
- a recent heart attack (within the past 90 days);
- a recent history (in the past 6 months) of a stroke, or congestive heart failure;
- angina (chest pain), high or low blood pressure;
- liver or kidney disease (or if you are on dialysis);
- a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia;
- a bleeding disorder such as hemophilia;
- a stomach ulcer;
- retinitis pigmentosa (an inherited condition of the eye);
- a physical deformity of the penis (such as Peyronie’s disease) or if you have been told you should not have sexual intercourse for health reasons
How should I take Cialis?
There are four strengths of Cialis – 2.5mg, 5mg, 10mg and 20mg. Cialis is usually taken only once per day without regard to food. Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended.
For erectile dysfunction, take the dose just before sexual activity but not more than once per day.
Cialis can help achieve an erection when sexual stimulation occurs. An erection will not occur just by taking a pill. Follow your doctor’s instructions:
- For use as needed: Take Cialis at least 30 minutes before sexual activity, as directed by your doctor. Cialis may work for up to 36 hours after you take it. If you miss a dose of Cialis and you still intend to engage in sexual activity, take it as soon as you remember.
- For daily use: Take Cialis regularly at about the same time each day. If you miss a dose of Cialis, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
- Do not break or split a tablet. Swallow it whole.
- Do not take Cialis for erectile dysfunction if you are taking Adcirca for pulmonary arterial hypertension.
Check with your doctor before you eat grapefruit or drink grapefruit juice while you are taking Cialis.
Cialis for use as needed for erectile dysfunction (ED):
- The recommended starting dose of Cialis for use as needed in most patients is 10 mg, taken prior to anticipated sexual activity.
- The dose may be increased to 20 mg or decreased to 5 mg, based on individual efficacy and tolerability. The maximum recommended dosing frequency is once per day in most patients.
- Cialis for use as needed was shown to improve erectile function compared to placebo up to 36 hours following dosing. Therefore, when advising patients on optimal use of Cialis, this should be taken into consideration.
Cialis for once daily use for ED:
- The recommended starting dose of Cialis for once daily use is 2.5 mg, taken at approximately the same time every day, without regard to timing of sexual activity.
- The Cialis dose for once daily use may be increased to 5 mg, based on individual efficacy and tolerability.
Cialis for once daily use for benign prostatic hyperplasia:
- The recommended dose of Cialis for once daily use is 5 mg, taken at approximately the same time every day.
- When therapy for BPH is initiated with Cialis and finasteride, the recommended dose of Cialis for once daily use is 5 mg, taken at approximately the same time every day for up to 26 weeks.
Cialis for once daily use for benign prostatic hyperplasia and ED:
- The recommended dose of Cialis for once daily use is 5 mg, taken at approximately the same time every day, without regard to timing of sexual activity.
Store Cialis at room temperature (77 ° F or 25 ° C), excursions permitted to 15-30°C (59-86°F) away from moisture, heat and light. Do not store in the bathroom. Keep Cialis out of the reach of children and away from pets.
What are the side effects of Cialis?
All medicines may cause side effects, but most men taking Cialis do not experience significant side effects.
Check with your doctor if any of these most common side effects persist or become bothersome:
- Dizziness or nauseated during sexual activity
- mild back or muscle pain
- stomach upset
- stuffy or runny nose
Stop using tadalafil and seek medical attention right away if you have any of these serious side effects:
- severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue)
- chest pain or heavy feeling, pain spreading to the arm or shoulder
- fast or irregular heartbeat
- seizure (convulsions)
- memory problems
- numbness of an arm or leg
- one-sided weakness
- prolonged, painful erection (4 hours or longer). A prolonged erection (priapism) can damage the penis.
- ringing in your ears, or sudden hearing loss
- red, swollen, blistered, or peeling skin
- muscle pain, severe or persistent back pain
- changes in vision or sudden vision loss
- nausea, sweating, general ill feeling
This is not a complete list of all side effects that may occur. If you have questions about side effects call your doctor for medical advice about side effects.