Tadalafil is the generic of the brand name drug Cialis. Tadalifil is a type of medication used to treat erectile dysfunction, a condition where men find it difficult to get or maintain an erection.

Tadalafil works by increasing blood flow to the penis so you can get and keep an erection.

Tadalafil tablets come in different strengths such as 10mg and 20mg. The tablets can be taken with or without food. Tadalafil dosing should not be repeated within 72 hours.

Tadalafil is also available in a smaller daily dose (2.5 or 5mg) for people that have sex frequently and prefer not to worry about dosing on-demand.

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Usually, Tadalafil will start to work within 30 to 60 minutes, so take it at least a half hour before you plan to have sex.

Tadalafil isn’t for everyone. You should not take Tadalafil if any of the following conditions apply to you:

• You have previously experienced an allergic reaction to Tadalafil (Cialis) or any other medicines in the past
• You are taking medicines called nitrates for chest pain
• You are currently taking take any guanylate cyclase stimulators, like riociguat (adempas)
• You are using drugs such as amyl nitrate or amyl nitrite, and butyl nitrate, also known as poppers. 
• You have a serious liver or heart problem
• You have low blood pressure or a condition that may lower blood pressure like aortic stenosis or hypertrophic obstructive cardiomyopathy
• You have recently had a heart attack or stroke
• You are taking other medication for erectile dysfunction, such as Viagra.

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In Canada, Tadalafil is not available over the counter, so you will always need a prescription first.

If you are experiencing the symptoms of erectile dysfunction and are seeking a prescription for Tadalafil, talk to a doctor about whether it could be the right solution.

Yes. If left for too long, Tadalafil will start to lose its effectiveness. Therefore it is not recommended to take Tadalafil more than a year after the prescription has been dispensed.

Common Tadalafil side effects include flushing, lightheadedness, headache, runny nose, or nausea.

If you develop an erection that lasts longer than 3 hours please go to the emergency department - this is a rare but dangerous side effect called priapism.

There have been exceedingly rare reports of non-arteritic anterior ischemic optic neuropathy - a condition that impacts sight - although most experts do not believe this to be related to ED medications.

It is recommended that you see a doctor in person for this issue, for a full physical exam and blood work to determine if there is an underlying cause like diabetes, vascular disease or low testosterone

Tadalafil is not a treatment for premature ejaculation, so it usually won’t impact the amount of time you can have sex for before you ejaculate.

Tadalafil won’t make you hornier or help you feel sexually aroused when you otherwise wouldn’t be interested in sex. Tadalafil simply makes it easier to get an erection when you’re already sexually aroused.

If you have erectile dysfunction and normally find it difficult to get or maintain an erection, Tadalafil might cause your erection to feel bigger but it will not make your penis physically larger than its regular size.