Remember that Cialis does not increase sexual desire, so sexual stimulation is necessary. Take a lower dose of Cialis at the same time each day.
| Country | Prescription Required | Over-the-counter Availability | Notes |
|---|---|---|---|
| USA | Yes | No | Prescription needed |
| UK | Yes | No | Strict regulations |
| Canada | Yes | No | Controlled medication |
This allows the option to attempt sex at any time, but sexual stimulation is still required.
Cialis is not a controlled substance and does not cause physical addiction or withdrawal, but misuse (especially for recreational use) may lead to psychological dependence. Recreational use increases risks of side effects, unsafe sexual behavior, and dangerous drug interactions, particularly when mixed with stimulants or “poppers.” Before taking Cialis, inform your healthcare provider about all the medications you are taking, including prescription and over-the-counter drugs, vitamins, and supplements. Nitrates (e.g., nitroglycerin, isosorbide dinitrate): Dangerous drops in blood pressure. Nitrates are contraindicated with PDE5 inhibitors like Cialis. Other ED medications (e.g., Viagra, Levitra): Increased risk of hypotension.
Strong CYP3A4 inhibitors (e.g., ketoconazole, ritonavir): May increase tadalafil levels and side effects. CYP3A4 inducers (e.g., rifampin): May reduce Cialis effectiveness. Additionally, grapefruit and juices that contain grapefruit can interact with Cialis. Check with your healthcare provider before combining grapefruit with Cialis. Drinking too much alcohol can increase your risk of certain side effects like headache, dizziness, fast heart rate, and low blood pressure.
If you drink alcohol, check with your healthcare provider for medical advice on how much alcohol is safe for you during Cialis treatment. Follow these 8 key tips to reduce your risk of side effects and get the best results from Cialis: Get a prescription from a licensed healthcare provider after a full medical evaluation. Avoid counterfeit or online “cheap” versions — they may contain unsafe ingredients. Do not increase or decrease the dose without consulting your doctor. Inform your provider about all medical conditions and medications. If you miss a dose, do not double up, as this can increase side effects. You might be able to take daily Cialis for sex and voiding issues and add as-needed doses for extra support with sexual dysfunction.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Cialis Super Active | 20mg | 30 + 6 Pills | 128.09€ 121.99€ | |
| Cialis Professional | 20mg | 60 + 2 Pills | 183.83€ 175.08€ | |
| Cialis Professional | 40mg | 90 + 2 Pills | 348.59€ 331.99€ | |
| Cialis Professional | 40mg | 20 Pills | 110.24€ 104.99€ | |
| Cialis Generic | 20mg | 20 Pills | 54.72€ 52.11€ | |
| Cialis Generic | 60mg | 60 + 4 Pills | 145.06€ 138.15€ | |
| Cialis Soft Tabs | 20mg | 270 + 10 Pills | 471.40€ 448.95€ | |
| Cialis Generic | 10mg | 90 + 6 Pills | 146.17€ 139.21€ | |
| Cialis Original | 20mg | 14 + 2 Pills | 95.75€ 91.19€ | |
| Cialis Generic | 10mg | 360 + 10 Pills | 388.49€ 369.99€ | |
| Cialis Generic | 20mg | 270 + 10 Pills | 335.21€ 319.25€ | |
| Cialis Generic | 5mg | 270 + 10 Pills | 205.81€ 196.01€ |
This should only be done under your doctor’s supervision. Cialis belongs to a drug class called phosphodiesterase type 5 inhibitors, or PDE5 inhibitors. They affect this specific enzyme and work to increase nitric oxide. When combined with sexual stimulation, this process helps to increase blood flow to the penis and achieve an erection.
Cialis stays active up to 36 hours; overdosing increases side effect risk. Both can heighten side effects and reduce safety. Especially if you’re taking antihypertensives or have heart disease. Cialis does not protect against sexually transmitted diseases — use condoms and safe practices. Cialis, U.S.
National Library of Medicine (2024) Drug interactions with phosphodiesterase-5 inhibitors used for the treatment of erectile dysfunction or pulmonary hypertension, Circulation (2010) Orthostatic hypotension: Mechanisms, causes, management, Journal of Clinical Neurology (2015) Recreational use of erectile dysfunction medications in undergraduate men in the United States: Characteristics and associated risk factors, Archives of Sexual Behaviors (2011) Recreational Viagra use and sexual risk among drug abusing men, American Journal of Infectious Diseases (2006) The synergistic (MARATHON) effect of combined methamphetamine with sexual stimulant drugs on increasing the likelihood of high-risk sexual behavior, Addiction & Health (2014) Treatment of nonarteritic anterior ischemic optic neuropathy, Survey of Ophthalmology (2010) Long-term safety and tolerability of tadalafil in the treatment of erectile dysfunction, European Urology (2004) Tadalafil compound summary, U.S. National Library of Medicine (2025) Medically accurate: SingleCare’s Medical Review Board analyzes all of our content to confirm it’s in line with current medical advice. Evidence-based: Our content is sourced from reputable U.S.-based healthcare professionals and peer-reviewed research. Trustworthy: All of SingleCare’s content goes through a multi-phase review process by our writers, editors, and Medical Board in order to provide clear and credible information. Take Cialis at least two hours before sex for the best results.
Avoid heavy meals and limit alcohol before taking Cialis. Always follow your healthcare provider's prescribed dosage and don't change it without their advice. To get the most out of Cialis (tadalafil) for erectile dysfunction, it's crucial to use the right dosage and timing. Collaborate with your healthcare provider to tailor your treatment, and consider lifestyle factors that can enhance effectiveness. Take Cialis exactly as prescribed by your healthcare provider. Most people begin with a 10 mg dose of Cialis for ED, but it can be adjusted between 5 mg and 20 mg as needed.
For daily ED use, a lower dose of 2.5 mg is common but can be adjusted to 5 mg.
If you have both ED and BPH, you may take it once daily. For ED alone, it's often daily cialis cost taken as needed before sexual activity. Take Cialis as needed before sexual activity. Typically, this involves taking the medication once every other day, at least 30 minutes (ideally two hours) before sex. The effects for ED can last up to 36 hours. The latter Cialis dose is the most common treatment for BPH, which can co-occur with ED. Cialis doses can vary with age, underlying health conditions (like kidney or liver disease), or other medications. Talk with your healthcare provider about your dose and don't change it without a recommendation as complications such as priapism can occur. Priapism means an erection has lasted four hours or more, won't go away, and typically causes pain.
Cialis can help manage symptoms of erectile dysfunction. However, using it as part of a comprehensive ED treatment plan can increase your chances of success.
| Question | Answer |
|---|---|
| Can I take Cialis 5 mg with food? | Yes, but high-fat meals may delay absorption. |
| Is it safe to drink alcohol? | Moderate alcohol may be tolerated, but excess increases side effects. |
| How long does it take to work? | Usually within 30–60 minutes. |
| Can I take it daily? | Yes, when prescribed for daily use. |
| What should I do if I miss a dose? | Take as soon as remembered, unless near the next dose. |
Remember that ED is often related to heart health, diabetes, and other conditions that benefit from careful management and lifestyle changes. If Cialis doesn’t fully address your ED symptoms, there may be another underlying issue. To get the best results from Cialis, consider these tips: Timing: Take Cialis at least two hours before planned sexual activity. It remains effective for up to 36 hours, with peak concentration in 2 to 3 hours. Diet and alcohol intake: You can take Cialis with or without food, but heavy or fatty meals might delay its absorption.
| Brand Name | Approximate Price (per tablet) | Purchase Options |
|---|---|---|
| Cialis | $2 - $5 | Pharmacies, online pharmacies |
| Generic Tadalafil | $0.50 - $2 | Online, local stores |
| Discount Programs | Variable | Prescription discount cards |
It's best to limit alcohol, as it can reduce Cialis's effectiveness and heighten side effects like dizziness or low blood pressure. Stay hydrated: Drink plenty of fluids to support blood flow and optimize how your body absorbs the medication. Correct dosage: Follow your healthcare provider's dosage instructions and consult your provider before making any changes. Weight loss can be considered a first-line therapy for ED.
In many cases, certain side effects of tadalafil may be slightly more prevalent at higher doses. For example, 11% of people who took 5 mg or 10 mg doses reported headache, compared to 15% of those who took 20 mg. And 4% of people taking 5 mg doses reported indigestion, compared to 8% of those who took 10 mg doses and 10% of users taking 20 mg doses. If you tolerate a lower dose well and notice side effects at higher doses, your healthcare provider may suggest going back to a lower dose. A study of long-term use of Cialis (taken as needed for ED) over an 18- to 24-month period found the medicine to be safe and well-tolerated.
The most common side effects in people who took Cialis for this period of time were headache, common cold symptoms, and back pain. In this study, about 6% of users stopped taking Cialis due to side effects. Although 8.6% of patients had serious side effects, the researchers did not find a cause-and-effect relationship. However, there are many factors that can influence whether you will have long-term side effects of Cialis, so it’s best to discuss your medical history with your healthcare provider to determine the best—and safest—treatment for you. Cialis may not be the right drug for all men, particularly because of its effects on the cardiovascular system.
Cialis is contraindicated (should never be used) in men: With an allergy to tadalafil or any ingredient in the medicine Who take nitrates or guanylate cyclase stimulators For some people, the healthcare provider will weigh the risks and benefits to ensure the drug is safe for you. Be sure to tell your healthcare provider about any medical conditions you have, including: Mild to moderate kidney disease (Cialis is not recommended for people with severe kidney problems or who are on dialysis) Mild to moderate liver disease (Cialis is not recommended for people with severe liver problems) Cardiovascular (heart) problems, or a previous heart attack or stroke Pulmonary hypertension (high blood pressure in the arteries of the lungs) A history of NAION or any other vision or eye problems, including retinitis pigmentosa Penile deformities such as Peyronie’s disease, cavernosal fibrosis, or angulation A history of an erection lasting more than four hours A blood cell condition such as sickle cell anemia, leukemia, or multiple myeloma According to the prescribing information, patients with cardiovascular conditions such as myocardial infarction, angina (chest pain), hypotension, stroke, or uncontrolled arrhythmias at present, or in the recent past, should not take Cialis because no clinical studies have been conducted to evaluate safety and efficacy. Children: Cialis is not approved for anyone under the age of 18 years. Women: Cialis is not FDA-approved for use in women, nor is it recommended during pregnancy or breastfeeding. Older adults: No dosage adjustment is required based on age alone, but older adults should be closely monitored for cardiovascular risks or other issues. Adopt a diet rich in fruits, vegetables, lean proteins, and whole grains.