Features of Forzest
Forzest is a medication designed to treat erectile dysfunction (ED) and improve its symptoms.

The drug contains the same active ingredient as the globally best-selling Cialis, characterized by its round, yellow tablets.

Effects of Forzest
The main component of Forzest, tadalafil, works by inhibiting PDE-5 (phosphodiesterase type 5), an enzyme that restricts erectile function.

PDE-5 enzyme breaks down cyclic guanosine monophosphate (cGMP), which is essential for erections.

When cGMP is broken down, erections cannot occur, leading to ED (erectile dysfunction).

Tadalafil inhibits the PDE-5 enzyme, which has the effect of dilating blood vessels around the penis and relaxing the muscles in the internal penile tissue (known as the corpus cavernosum).

This dilation of blood vessels and muscle relaxation allows more blood to flow easily into the internal penile tissue (corpus cavernosum), facilitating erections.

Duration of Forzest
The drug's effects are said to last up to 36 hours, but it does not force an erection—it only occurs upon sexual stimulation or arousal.

Dosage of Forzest
20 mg

Other Information
As a generic version of Cialis, Forzest is highly popular for its excellent cost-performance ratio.

The original Cialis, affectionately called the "weekend pill" due to its maximum effect duration of 36 hours, surpassed Viagra in 2014 to become the world's top-selling ED medication.

Related Pages for Forzest
Tadalafil Product List
・Generic Cialis

Reference Sites
In addition to the product manuals from the country of sale, we refer to the following websites to explain our products.
・Tadalafil - Wikipedia

Timing of Administration
Forzest should be taken on an empty stomach, approximately 1 hour before sexual activity for optimal effectiveness.

After one dose, wait at least 24 hours before taking the next dose.

Dosage Guidelines
This website sells Forzest in 20mg tablets, but they can be split in half using a pill cutter for a 10mg dose.

If 10mg proves insufficient, the dose may be increased to 20mg. Please adjust according to your individual needs.

Some users attempt to take 2 or 3 times the recommended dose for enhanced effects, but this does not increase efficacy.

The maximum recommended dose per sexual encounter is 20mg.

For smaller individuals, 10mg may still be effective.

Recommended Initial Dose
For first-time users of medications containing tadalafil (Forzest's active ingredient), a 10mg dose is recommended.

Food Interactions
Avoid eating for at least 2 hours before taking Forzest.

This relates to the absorption process of tadalafil.

Tadalafil is absorbed through the intestines into the bloodstream.

Food in the stomach may cause premature absorption before reaching the intestines.

High-fat meals prior to administration can coat intestinal walls, impairing absorption.

Poor absorption may reduce or negate effects, so take on an empty stomach whenever possible.

After approximately 30 minutes, absorption is complete and normal eating may resume.

Alcohol Interactions
While alcohol consumption is permitted, the vasodilatory effects may intensify intoxication. Drink responsibly.

Contraindications
・Individuals with cardiovascular conditions where sexual activity is medically inadvisable

・Patients with severe liver impairment

・Those with hypotension or uncontrolled hypertension

・Patients with recent (within 6 months) stroke, cerebral hemorrhage, or myocardial infarction

・Individuals with known hypersensitivity to tadalafil

※Always follow your physician's instructions when taking medication.

Main Side Effects
The primary side effects include decreased blood pressure due to vasodilation, eye congestion, facial flushing, palpitations, nasal congestion, etc.

These are believed to be caused by vasodilation, and the side effects may diminish when increased sexual desire leads to enhanced blood flow to the penis.

Specific Symptoms
Specific symptoms include visual abnormalities, such as feeling like wearing blue-tinted glasses or difficulty distinguishing between blue and green.

In most cases, this is temporary and not problematic, but if vision severely deteriorates, there is a risk of developing non-arteritic anterior ischemic optic neuropathy (NAION).

If you experience sudden vision deterioration or loss, consult an ophthalmologist or other specialist.

Additionally, if you have a painful erection lasting more than four hours, you may be experiencing priapism.

If the erection persists for more than 4 hours, seek immediate medical attention.

※What is Non-Arteritic Anterior Ischemic Optic Neuropathy (NAION)?
When the blood supply to the optic nerve is cut off, optic nerve cells begin to malfunction or die.
This condition is called ischemic optic neuropathy.
The causal relationship between the two is not yet clear, but a slight correlation has been reported among individuals taking erectile dysfunction medications.

※What is Priapism?
Sustained erection, also known as priapism, is a condition where the penis remains erect and cannot or has difficulty returning to its normal state.
It is also referred to as penile rigidity.
The primary cause of this condition is believed to be a rupture in the arterial system of the corpus cavernosum.
If your erection does not subside and lasts continuously for 4 hours, seek medical attention immediately.

Contraindications for Concurrent Use
Prohibited medications are those incompatible with Forzest and must not be taken simultaneously.

・ Nitrates and nitric oxide donors
(Nitroglycerin, amyl nitrite, isosorbide dinitrate)
Concurrent use may enhance antihypertensive effects.

・ Amiodarone hydrochloride
(Ancaron tablets)
Concurrent use may intensify the QTc prolongation effect of amiodarone hydrochloride.

・ sGC stimulators
(Riociguat, Adempas)
Concurrent use may cause a drop in blood pressure.

Precautions for Combined Use
Medications requiring caution when used with Forzest are those that need careful monitoring.

・ Grapefruit (including juice)
The component furanocoumarin inhibits the action of metabolic enzymes in the body, slowing drug breakdown.
As a result, drug components may be absorbed beyond the required amount, potentially leading to stronger effects and side effects.

・ CYP3A4 inhibitors/inducers
Ritonavir, saquinavir, darunavir

・ Antihypertensive drugs
Since Forzest has blood pressure-lowering effects, concurrent use with antihypertensive medications may cause symptoms of hypotension, such as temporary dizziness or lightheadedness.

Ranbaxy Laboratories