Cialis is a prescription medication used to treat erectile dysfunction (ED) and symptoms of benign prostatic hyperplasia (BPH). Its active ingredient is tadalafil, which belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. 

This article focuses on how Cialis is used to treat ED. Cialis works by increasing blood flow to the penis, helping men achieve and maintain an erection during sexual stimulation. Additionally, it can help relieve urinary symptoms associated with BPH. Read our What is Cialis article to learn more about how this ED medication works.

Cialis should be taken as directed by your healthcare provider. The dosage and frequency will depend on your individual needs and medical condition. It is typically taken orally, with or without food, about 30 minutes before sexual activity. The effects of Cialis can last up to 36 hours, allowing for increased sexual spontaneity. Do not exceed the recommended dose or take Cialis more frequently than prescribed.

Before using Cialis, inform your doctor about all allergies, medications, and underlying conditions. Heart problems, low blood pressure, liver or kidney disease, retinitis pigmentosa (an eye disorder), or a history of priapism (painful prolonged erection) may require personalized dosage adjustments.

Cialis should not be taken by those who are also using nitrates or guanylate cyclase stimulators, as this can lead to a sudden and severe drop in blood pressure. Certain medications used to treat high blood pressure may also interact with Cialis. Read more about Cialis drug interactions in our curated blog. If you experience chest pain, dizziness, or nausea during sexual activity after taking Cialis, seek immediate medical attention.

Common side effects of Cialis may include:

• Headache
• Indigestion or upset stomach
• Back pain
• Muscle aches
• Flushing (redness or warmth in the face, neck, or chest)
• Nasal congestion

These side effects are generally mild and temporary. However, if you experience severe or persistent side effects, such as sudden vision loss, hearing loss, chest pain, or priapism, stop using Cialis and seek immediate medical attention. Learn more by reading our Cialis Side Effects article.

Why is Cialis cheaper from Canada?

Government regulations in Canada mean that ordering your prescriptions from Canada Pharmacy Depot can help you save up to 90 percent. Buying Cialis or generic tadalafil from Canada is a safe and secure way to save money on your ED medication.

How do I maximize the benefits of Cialis?

Tadalafil reaches the highest level of concentration two hours after dosage. Taking Cialis at least 30 minutes before sexual activity will help ensure effectiveness. Avoiding certain drug and food interactions while on Cialis can also ensure this drug works well. Interactions can offset Cialis’ benefits or cause dangerous levels to occur.

What if I miss a dose of Cialis?

Take the missed dose of tadalafil as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the next one at the scheduled time. Make sure to never take more than one dose every 24 hours.

My erection is painful. Should I call my doctor?

Yes, painful and prolonged erections are a sign of priapism. Any erection that lasts longer than 4 hours is a medical emergency, and you should seek help right away. If left untreated, priapism can lead to permanent erectile dysfunction and tissue damage within the penis.

Can I take Cialis with food?

Yes, Cialis can be taken with or without food. However, be wary of foods like grapefruit that act as CYP3A4 inhibitors. Grapefruit impairs liver function, resulting in higher levels of tadalafil in the blood. High concentrations of Cialis increase the risk of side effects.

What are the side effects of Cialis?

Common side effects of Cialis include indigestion, muscle and back pain, a runny nose, and headache. If any side effect does not dissipate after a few hours, speak to your doctor for ways to manage your side effects.