Filitra is recommended to be taken 20 minutes to 1 hour before sexual activity, with one tablet per dose.

Although it is less affected by food intake, it is still advised to take it on an empty stomach when possible.

Additionally, a minimum interval of 24 hours should be maintained between each dose.

Contraindications

・Individuals with cardiovascular diseases (heart or vascular disorders)
・Those with severe liver dysfunction
・Patients with hypotension
・Individuals with uncontrolled hypertension
・Those with a history of stroke, cerebral hemorrhage, or myocardial infarction within the past 6 months

The following are possible side effects of Filitra:

・Lowered blood pressure due to vasodilation
・Bloodshot eyes
・Facial flushing
・Palpitations
・Nasal congestion, etc.

Special symptoms include:

・Visual abnormalities such as blue-tinted vision
・Decreased visual acuity
・Persistent erection

If side effects persist, please consult a doctor promptly.

Generally, side effects will subside as the medication's effects wear off.

Contraindications

Contraindicated drugs refer to medications that interact with Filitra and must not be taken simultaneously.

・Nitrates and NO donor drugs
(Nitroglycerin, Amyl Nitrite, Isosorbide Mononitrate, etc.)
Combination may enhance blood pressure-lowering effects.

・Amiodarone Hydrochloride
(Cordarone Tablets)
Combination may exacerbate QT prolongation caused by Amiodarone Hydrochloride.

・CYP3A4 Inhibitors
(Antifungal drugs, HIV medications, Telithromycin, Nefazodone, Ketoconazole, Itraconazole, Ritonavir, Saquinavir, Nelfinavir, Atazanavir, etc.)
May increase plasma concentration and prolong half-life of this drug.

・Nirmatrelvir/Ritonavir (Paxlovid)

・Enzaltesvir (Xocova)

Precautions for Drug Combinations

Precautionary drugs refer to medications that require careful use when combined with Filitra.

・Grapefruit (including juice)
Contains furanocoumarins that inhibit metabolic enzyme activity, delaying drug breakdown.
May cause excessive absorption of drug components, intensifying therapeutic effects or side effects.

・Antihypertensive drugs
Filitra itself has blood pressure-lowering effects; combining with antihypertensives may cause temporary dizziness, unsteadiness, or other hypotension symptoms.

・Keep out of reach of children.
・Store at room temperature, avoiding high temperature and humidity environments.

Fortune Health Care