Cialis 20mg: what to know
Cialis 20mg is a tadalafil strength used for erectile dysfunction as needed. Learn timing, interactions, side effects, and safety.
Key facts
- Tadalafil Daily is $129/month (billed $387 every 90 days), charged only after a clinician approves it.
- Answer a few health questions online. A licensed clinician reviews them. If approved, it ships to your door.
- Adults 18 or older. A licensed clinician reviews your health history and decides whether treatment is appropriate for you. Availability depends on the state you live in.
Cialis 20mg refers to a 20 mg strength of tadalafil, a prescription medicine used to treat erectile dysfunction (ED). It is one of the higher as needed tablet strengths listed in the FDA labeling, and it is not the same as daily tadalafil dosing. If you are comparing brand Cialis to generic tadalafil, focus on the active ingredient, safety warnings, and drug interactions first. Vitals Vault can help you review whether generic tadalafil may be a fit with clinician guidance and follow up support.
- Cialis 20mg is a tadalafil tablet strength used for erectile dysfunction, typically taken as needed.
- Do not use tadalafil with nitrates, and use caution with alpha blockers due to low blood pressure risk.
- Seek urgent care for chest pain, sudden vision loss, sudden hearing loss, or an erection lasting over 4 hours.
- Generic tadalafil has the same active ingredient as brand Cialis, but products differ by manufacturer and price.
What Cialis 20mg is
Brand vs generic
Cialis is the brand name for tadalafil. Generic tadalafil contains the same active ingredient and is FDA-approved to meet the same quality and performance standards, but it may look different and be made by a different manufacturer.
What it treats
Tadalafil is FDA-approved for erectile dysfunction and for signs and symptoms of benign prostatic hyperplasia (BPH). It is also approved for ED with BPH, and a different tadalafil product is approved for pulmonary arterial hypertension (PAH).
Why the strength matters
The FDA label lists multiple tablet strengths for ED. A higher strength is not automatically better, because side effects and interactions can become more important as exposure increases.
Cialis 20mg details: how it is used and key safety points
How tadalafil works
Tadalafil is a PDE5 inhibitor. During sexual stimulation, it helps increase blood flow to the penis by enhancing the effects of nitric oxide and relaxing smooth muscle in penile blood vessels.
How it is taken for ED
For ED, the FDA label describes tadalafil as either taken as needed before sexual activity or taken once daily at a lower daily dose. Your clinician chooses the approach based on your symptoms, preferences, and other health factors.
Timing and duration
The FDA label notes that tadalafil can improve erectile function for up to 36 hours after a dose in some people. How long it helps can vary with factors like other medicines, alcohol use, and underlying health conditions.
Do not combine with nitrates
Do not take tadalafil if you use nitrates for chest pain, including nitroglycerin in any form, because the combination can cause a dangerous drop in blood pressure. Tell emergency clinicians you have taken tadalafil if you develop chest pain.
Alpha blockers and blood pressure drugs
Tadalafil can lower blood pressure. Using it with alpha blockers or other antihypertensives can increase the chance of dizziness or fainting, so clinicians often review your blood pressure history and medication list carefully.
CYP3A4 interactions
Some medicines can raise tadalafil levels by affecting CYP3A4 metabolism, including certain antifungals and some antibiotics and HIV medicines. Higher exposure can increase side effects, so your clinician may adjust the plan or choose a different option.
| Side effect | How it may feel | What to do |
|---|---|---|
| Headache (common) | Pressure or throbbing headache | If mild, discuss with your clinician at follow up; seek care for severe symptoms. |
| Flushing (common) | Warmth or redness in face or chest | Often short-lived; avoid mixing with heavy alcohol, which can worsen dizziness. |
| Indigestion (common) | Heartburn or stomach upset | Discuss if persistent; urgent care for severe chest pain. |
| Back pain or muscle aches (common) | Aching in back or muscles | Tell your clinician if it is bothersome or does not resolve. |
| Low blood pressure symptoms (serious) | Dizziness, lightheadedness, fainting | Sit or lie down and seek medical advice, especially if you take blood pressure medicines. |
| Priapism (serious) | Erection lasting longer than 4 hours | Get emergency care right away to prevent permanent injury. |
| Sudden vision loss (serious) | Sudden decrease or loss of vision in one or both eyes | Stop sexual activity and get emergency care; this can be a medical emergency. |
| Sudden hearing loss (serious) | Sudden decrease or loss of hearing, sometimes with ringing or dizziness | Get urgent medical evaluation. |
When to talk to a clinician before using Cialis 20mg
If you use nitrates
Tell your clinician if you use any nitrate medicine for chest pain or heart disease. Tadalafil is contraindicated with nitrates due to the risk of severe low blood pressure.
If you take alpha blockers
Medicines used for prostate symptoms or blood pressure, such as alpha blockers, can interact with tadalafil and increase dizziness or fainting. A clinician can review your regimen and decide on a safer plan.
If you have heart disease
If you have recent heart attack, stroke, unstable angina, or significant heart failure, sexual activity itself may be risky. A clinician should assess whether ED treatment is safe for you.
If you have kidney or liver disease
Kidney and liver problems can change how tadalafil is cleared from your body. The FDA label includes dose adjustments and limits in certain levels of impairment, so clinician review is important.
If you have vision conditions
Rare vision problems have been reported with PDE5 inhibitors, including non-arteritic anterior ischemic optic neuropathy (NAION). Discuss any history of sudden vision loss or eye disease before using tadalafil.
Pro tips for safer, more predictable results
Bring your full med list
Include nitrates, alpha blockers, antifungals, antibiotics, and HIV medicines.
Avoid mixing with heavy alcohol
Alcohol can worsen dizziness and low blood pressure symptoms.
Do not double up doses
If it did not work, discuss next steps with your clinician instead.
Plan for follow up
Tell your clinician about side effects, erections quality, and any new symptoms.
Frequently Asked Questions
Is Cialis 20mg the same as tadalafil 20mg?
Cialis is the brand name for tadalafil, so Cialis 20mg and tadalafil 20mg refer to the same active ingredient and strength. Your pharmacy may dispense brand Cialis or a generic tadalafil product depending on what is prescribed and available.
What affects cialis 20mg price?
Cost can vary by whether you receive brand Cialis or generic tadalafil, your pharmacy and location, and whether insurance covers it. If you are viewing a treatment plan, current prices are shown where the plan is listed rather than in this article.
Is there a cialis generic 20mg?
Yes. Generic tadalafil is available and contains the same active ingredient as Cialis. Generic products can differ by manufacturer and tablet appearance, but they must meet FDA standards for quality and performance.
How long does cialis 20mg last?
The FDA label notes tadalafil can improve erectile function for up to 36 hours after a dose in some people. How long it lasts for you can vary based on your health, other medicines, and alcohol use.
Can I take cialis 20mg with nitroglycerin?
No. Tadalafil is contraindicated with nitrates such as nitroglycerin because the combination can cause a dangerous drop in blood pressure. If you need emergency care for chest pain, tell the medical team you have taken tadalafil.