Cialis: Uses, Side Effects, and FAQs
Cialis is a prescription medication used to treat erectile dysfunction (ED) in adult men. It may also be prescribed for benign prostatic hyperplasia (BPH) or an enlarged prostate.
Known for its long duration of effect—up to 36 hours—Cialis is widely used by individuals who prefer a flexible window for sexual activity. This guide outlines how Cialis works, how to take it properly, who it is for, common side effects, and how to order it safely through GoRocky.
How Cialis Works
Cialis’ active ingredient is Tadalafil, a PDE5 inhibitor that supports erectile function by increasing blood flow to the penis. It does this by relaxing the smooth muscles in blood vessels, particularly in the pelvic area, allowing more blood to enter the erectile tissue during sexual stimulation.1
Cialis is commonly known as “The Weekend Pill” due to its extended duration of action—up to 36 hours. However, this does not mean a prolonged erection will occur. Rather, it means the body remains more responsive to sexual stimulation within that time frame.
It is important to note that Cialis does not cause an erection without sexual arousal. Stimulation is required for the medication to work effectively.
How to Take Cialis
Cialis can be taken in two ways, depending on your doctor’s advice and your lifestyle needs. For many men, it is prescribed only when needed—typically at a dose of 10 mg or 20 mg, taken about 30 to 60 minutes before sexual activity.
Alternatively, Cialis may be taken as a low-dose daily tablet, usually 2.5 mg or 5 mg, taken at the same time each day. This method is often recommended for those who prefer the option of engaging in sexual activity at any time, without needing to schedule around a dose.
Cialis can be taken with or without food, which makes it easy to fit into your routine. However, it’s best to limit alcohol intake, as it can interfere with how well the medication works.1
Regardless of the approach, it is important to take only one dose within a 24-hour period to avoid potential complications and ensure the medication remains effective.
Who Can Take Cialis
Cialis is intended for adult men who are experiencing erectile dysfunction (ED). It may be suitable for you if a licensed healthcare provider has assessed your condition and confirmed that Cialis is an appropriate treatment.
You should also not be taking any medications that may negatively interact with Cialis, particularly those used for heart conditions or chest pain.2
Side Effects of Cialis
Cialis is generally well tolerated. However, some users may experience the following common side effects:
- Headache 2
- Indigestion or upset stomach
- Back pain
These effects are usually mild and temporary. If symptoms persist or worsen, discontinue use and consult your healthcare provider.
Medicines You Should Not Use with Cialis
Cialis may interact with certain medications, which could lead to adverse effects. You should not take Cialis with:
- Nitrate-derived drugs used for chest pain or heart conditions. 2
- Certain blood pressure medications, especially alpha-blockers.
- Other ED treatments, including Sildenafil or Vardenafil.
Always inform your doctor about any medications, supplements, or herbal products you are currently using.
Where can I get Cialis?
Cialis is a prescription-only medication, so it can’t be obtained without proper medical oversight.
Through GoRocky, this process works as follows: you complete an online health assessment covering your medical history and relevant symptoms. A licensed doctor reviews your responses to confirm Cialis is appropriate and safe for you, including checking for potential drug interactions.
If approved, treatment is prescribed and shipped directly to your doorstep, with follow-up support available from the medical team along the way.
Cialis isn’t suitable for everyone. If you’re experiencing symptoms of ED and want to find out if this is an option for you, you can complete the assessment here.
Frequently Asked Questions
Cialis lasts much longer—up to 36 hours, compared to Sildenafil’s 4–6 hours. This gives you more flexibility, so you don’t have to plan around a strict time window. It also tends to have fewer food-related restrictions, which makes it easier to take on your own schedule.
The most reported side effects include headache, back pain, and indigestion. These are usually mild and go away on their own, especially with continued use.
Cialis Strips dissolve on your tongue—no need for water. They’re easier to take, more discreet, and may be absorbed slightly faster than traditional tablets, though the overall effect is the same.
Yes, in form and convenience. It’s a thin, fast-melting strip that works just like a mint strip, making it ideal if you want a quick, low-key way to take your ED treatment.
At GoRocky, we're here to help men take charge of their health — confidently, discreetly, and without judgment.
We provide access to experts who can perform medical consultations that can assess for common issues like erectile dysfunction, while guiding you through real concerns about men's health.
Our goal? A world where men are healthier, happier, and more confident — starting with you. No stress, no shame, just straightforward care that works.
For more information, reach out at [email protected] or call +63 966 952 8623.
[1] Questions and answers for Cialis (tadalafil). U.S. Food and Drug Administration. Published August 13, 2015. Accessed April 10, 2025. https://www.fda.gov/drugs/postmarket-drug-safety-information-patients-and-providers/questions-and-answers-cialis-tadalafil.
[2] Cialis. Drugs.com. Updated March 22, 2024. Accessed April 10, 2025. https://www.drugs.com/cialis.html.