DIRECTIONS FOR USE
If using Tadalafil 10mg or Tadalafil 20mg, take your tablet at least half an hour before engaging in sexual intercourse. The medicine will usually remain effective for up to 36 hours.
Tadalafil (generic Cialis) is used to treat erectile dysfunction (ED, impotence, inability to get or keep an erection), Tadalafil is in a class of medications called phosphodiesterase (PDE) inhibitors. It works to treat erectile dysfunction by increasing blood flow to the penis during sexual stimulation.
If you are taking Tadalafil to treat erectile dysfunction, you should know that it does not cure erectile dysfunction or increase sexual desire. Tadalafil does not prevent pregnancy or the spread of sexually transmitted diseases such as human immunodeficiency virus (HIV).
Tadalafil comes as a tablet to take by mouth. It may be taken with or without food.
Tadalafil is sometimes taken as needed, usually at least 30 minutes before sexual activity and not more often than once every 24 hours. Your doctor will help you decide the best time for you to take Tadalafil before sexual activity. You may attempt sexual activity at any time between doses. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take Tadalafil exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
WHAT SPECIAL PRECAUTIONS SHOULD I FOLLOW
Before taking Tadalafil, tell your doctor and pharmacist if you are allergic to Tadalafil, any other medications, or any of the ingredients in Tadalafil tablets.
Tell your doctor if you are taking or have recently taken riociguat (Adempas) or nitrates such as isosorbide dinitrate (Isordil), isosorbide mononitrate (Monoket), and nitroglycerin (Minitran, Nitro-Dur, Nitromist, Nitrostat, others). Nitrates come as tablets, sublingual (under the tongue) tablets, sprays, patches, pastes, and ointments. Ask your doctor if you are not sure whether any of your medications contain nitrates. Your doctor will probably tell you not to take Tadalafil if you are taking nitrates.
Tell your doctor if you are taking street drugs containing nitrates (‘poppers’) such as amyl nitrate, butyl nitrate, or nitrite while taking Tadalafil. Your doctor will probably tell you not to take Tadalafil if you are taking street drugs containing nitrates.
You should know that Tadalafil is available under the brand names Adcirca and Cialis. You should only be treated with one of these products at a time.
WHAT SIDE EFFECTS CAN THIS MEDICATION CAUSE
Tadalafil may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
- Indigestion or heartburn
- Pain in the stomach, back, muscles, arms, or legs
Some side effects can be serious. If you experience any of these symptoms, call your doctor immediately or get emergency medical treatment:
- Sudden decrease or loss of vision (see below for more information)
- Blurred vision
- Changes in color vision (seeing a blue tinge on objects or having difficulty telling the difference between blue and green)
- Sudden decrease or loss of hearing (see below for more information)
- Ringing in ears
- Erection that lasts longer than 4 hours
- Chest pain
- Difficulty breathing or swallowing
- Swelling of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs
- Blistering or peeling of skin
Some patients experienced a sudden loss of some or all of their vision after they took Tadalafil or other medications that are similar to Tadalafil. The vision loss was permanent in some cases. It is not known if the vision loss was caused by the medication. If you experience a sudden loss of vision while you are taking Tadalafil, call your doctor immediately or get emergency medical treatment. Do not take any more doses of Tadalafil or similar medications such as Sildenafil (Revatio, Viagra) or vardenafil (Levitra) until you talk to your doctor.
Some patients experienced a sudden decrease or loss of hearing after they took Tadalafil or other medications that are similar to Tadalafil. The hearing loss usually involved only one ear and did not always improve when the medication was stopped. It is not known if the hearing loss was caused by the medication. If you experience a sudden loss of hearing, sometimes with ringing in the ears or dizziness, while you are taking Tadalafil, call your doctor immediately. Do not take any more doses of Tadalafil or similar medications such as Sildenafil (Revatio, Viagra) or vardenafil (Levitra) until you talk to your doctor.