CIALIS® (tadalafil) for ED Treatment

Taking CIALIS

What is the difference between CIALIS and a counterfeit (fake) product?

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Purchasing CIALIS

Make sure the CIALIS you buy is the real thing.

Once your doctor prescribes CIALIS for you, you should be able to get your prescription filled easily at your local pharmacy. Or you may have an insurance plan that allows you to fill your prescription through a mail-order pharmacy.

You can also fill your prescription through an online pharmacy. If you choose to do so, we recommend consulting the National Association of Boards of Pharmacy (NABP). NABP is a professional association that represents the state boards of pharmacies in all 50 states. This site provides a list of online pharmacies that are certified by the NABP.

Buyer beware

Many online pharmacies are illegal. Beware of online pharmacies that are based outside of the United States. Also watch out for those that offer to provide a diagnosis and a prescription from a doctor who has not examined you. The best way to be sure that you are getting real CIALIS is to get a prescription from your doctor. Then fill it with a licensed pharmacy that you trust.

Making sure you get real CIALIS

Counterfeit (fake) CIALIS may be dangerous. Counterfeit medicines may contain impure or unknown ingredients that are not safe or do not work. CIALIS is made by Eli Lilly and Company. It has been reviewed by the United States Food and Drug Administration (FDA) for safety and effectiveness.

Some Web sites sell fake CIALIS. Ask yourself these questions; any "yes" answers could mean that the CIALIS being sold may be fake:

Is the price so much lower than the price at the local pharmacy that it seems too good to be true?
Is the Web site located outside of the United States, or does it not list an address or contact information?
Does the site offer to sell medicine without a doctor's prescription?
Were you referred to the Web site by an e-mail that you did not ask for? (Eli Lilly and Company, the maker of CIALIS, does not send e-mails unless you ask for them)
Does the site offer "soft tab" or "fast dissolve" CIALIS? (CIALIS only comes in tablets. There is no such thing as "soft tab" or "fast dissolve" CIALIS)
Does the site offer "generic CIALIS" or a drug with a name that is similar to CIALIS? (Such products have not have been evaluated by the FDA for safety and effectiveness—they could be harmful)

If you are aware of any online pharmacies that you suspect may be selling counterfeit prescription drugs, you can report them to the FDA.

Click to find out more about how CIALIS can help. Click to learn about the CIALIS Promise Program.

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CIALIS is indicated for the treatment of erectile dysfunction.

Important Safety Information for CIALIS^® (tadalafil)

CIALIS IS NOT FOR EVERYONE. Only your doctor can decide if CIALIS is right for you. Before taking CIALIS, ask if you're healthy enough for sexual activity and be sure to tell your doctor about all your medical conditions and all medications. Don't take CIALIS if you take nitrates as the combination can cause a sudden, unsafe drop in blood pressure.

CIALIS for daily use remains in your body for as long as you take it. Tell your doctor about all medications, especially if you take nitrates (often used for chest pain) or medicines for blood pressure, alpha blockers, antifungals, or HIV, so your doctor can be aware of potential drug interactions.

Don't drink alcohol in excess (to a level of intoxication) with CIALIS, as this may increase your chances of getting dizzy or lowering your blood pressure. CIALIS does not protect against sexually transmitted diseases, including HIV. The most common side effects with CIALIS were headache and upset stomach. Backache and muscle ache were also reported, sometimes with delayed onset.

As with any ED tablet, in the rare event of an erection lasting more than 4 hours, seek immediate medical help to avoid long-term injury.

In rare instances, men taking prescription ED tablets (including CIALIS) reported a sudden decrease or loss of vision or hearing (sometimes with ringing in the ears and dizziness). It's not possible to determine if these events are related directly to the ED tablets or to other factors. If you have a sudden decrease or loss of vision or hearing, stop taking any ED tablet, including CIALIS and call your doctor right away.

CIALIS is available by prescription only. For additional safety information, talk to your doctor about this medicine and see the full Patient Information.