Comprehensive Product Description Guide: Cialis (Tadalafil)

What is Cialis used for
Cialis, containing tadalafil, is a prescription medication used to treat erectile dysfunction (ED) and the symptoms of benign prostatic hyperplasia (BPH) in adult men. It works by increasing blood flow to specific areas of the body, primarily the penis, and can remain effective for up to 36 hours.

Cialis 5 mg / 10 mg / 20 mg Tablets (Tadalafil)

Manufacturer: Eli Lilly and Company
Generic Name: Tadalafil
Drug Class: Phosphodiesterase type 5 (PDE5) inhibitor
Available Strengths: 5 mg, 10 mg, 20 mg
Dosage Forms: Oral tablets

Tadalafil
Each Cialis tablet contains tadalafil as the active component. It is a selective inhibitor of phosphodiesterase type 5 (PDE5), which plays a key role in regulating blood flow in the penis.

Brand Cialis

Weekend Pill

Long-acting PDE5 Inhibitor

Tadalafil (Generic Name)

ED Medication

Cialis functions by selectively inhibiting the PDE5 enzyme in the corpus cavernosum of the penis. This inhibition prevents the breakdown of cyclic guanosine monophosphate (cGMP), which is responsible for relaxing smooth muscle tissue and increasing blood flow. When sexually stimulated, the increased cGMP levels help produce and maintain an erection.

In benign prostatic hyperplasia (BPH), Cialis helps by relaxing the smooth muscles in the bladder and prostate.

Cialis is clinically indicated for:

Erectile Dysfunction (ED) – Inability to attain or sustain an erection

Benign Prostatic Hyperplasia (BPH) – Enlarged prostate leading to urinary symptoms

ED + BPH Combo Therapy – For patients suffering from both conditions

Erectile Dysfunction:

Starting dose: 10 mg at least 30 minutes before sexual activity

May be increased to 20 mg or decreased to 5 mg depending on efficacy and tolerance

Maximum: 1 dose per 24 hours

Daily use:

2.5 mg to 5 mg once daily, taken at the same time each day, regardless of sexual activity

Benign Prostatic Hyperplasia:

5 mg once daily, taken at approximately the same time every day

Administration Advice:
Can be taken with or without food. Avoid excessive alcohol intake.
For adult men (18 years and older) only

Requires a valid prescription

Use with caution in patients with cardiovascular conditions, renal or hepatic impairment

Contraindicated in patients taking nitrates or riociguat

Not for use in women or children

Monitor blood pressure and cardiovascular status in patients with underlying heart conditions

Safe use must be determined by a healthcare professional

Common Side Effects:

Headache

Back pain

Flushing

Nasal congestion

Indigestion

Muscle aches

Less Common/Serious Side Effects:

Vision changes (e.g., blurred vision, sudden vision loss)

Hearing loss

Priapism (prolonged erection >4 hours)

Allergic reactions (rash, swelling)

Dizziness or fainting

Seek immediate medical help if serious reactions occur.

Nitrate Interaction: Avoid concurrent use of nitrate medications (e.g., for angina)

Cardiac Risk: Use with caution in patients with a history of stroke, heart attack, or unstable angina

Alcohol Use: Limit alcohol to prevent hypotension

Vision Problems: Risk of non-arteritic anterior ischemic optic neuropathy (NAION)

Grapefruit Juice: May increase blood levels of tadalafil

Cialis may interact with:

Nitrates (e.g., glyceryl trinitrate) – Risk of life-threatening hypotension

Alpha-blockers (e.g., doxazosin) – Additive blood pressure lowering

CYP3A4 inhibitors – e.g., ketoconazole, ritonavir (may increase tadalafil levels)

Antihypertensive agents – Monitor blood pressure closely

Antacids – May delay tadalafil absorption

NEJM 2003: Cialis demonstrated significant improvement in erectile function in over 80% of men compared to placebo

Meta-analysis (2020, Lancet): Tadalafil showed superior duration of effect and patient preference compared to sildenafil

BPH Clinical Trials: Cialis 5 mg significantly improved International Prostate Symptom Scores (IPSS)

Frequently Asked Questions (FAQs):
Q: How long does Cialis last?
A: Cialis can remain effective for up to 36 hours, allowing for more spontaneity.

Q: Can I take Cialis daily?
A: Yes, daily low-dose Cialis (2.5–5 mg) is approved for continuous use for ED or BPH.

Q: Is Cialis better than Viagra?
A: Cialis has a longer duration (up to 36 hours) vs. Viagra (~4–6 hours), and may be preferred for regular users.

Q: Can Cialis be taken with food?
A: Yes. Cialis is effective regardless of meals.

Q: Where can I buy Cialis in Australia?
A: Cialis is available with a prescription at EZ Chemist Online Pharmacy.
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