Bistra 50mg Tablet (Sildenafil Citrate)

Adult dosage

The recommended dose of 25-50 milligrams should be taken once a day, about 1 hour before sexual activity. Depending on the situation, it can also be taken 4 hours to 30 minutes before sexual activity. The dose can be adjusted according to efficacy and tolerance. The following patients should start with an initial dose of 25mg: - Those aged 65 or older - Patients with liver failure - Patients with severe kidney failure - Those taking CYP450 3A4 inhibitors - Ritonavir users

This medication should not be taken by those who are using blood pressure-lowering nitrate medications or nitric oxide donors, as it may cause excessively low blood pressure. Individuals with heart disease or those who have recently experienced heart problems should check their cardiac status before using this medication; it is not recommended for patients with severe cardiovascular disease. Since this medication has the potential to temporarily lower blood pressure through vasodilation, special caution is advised during sexual activities for individuals with cardiovascular conditions. If an erection lasts longer than 4 hours or is accompanied by pain, immediate medical attention should be sought, as untreated conditions can lead to penile tissue damage or loss of erectile function. Patients with certain heart valve disorders or reduced blood pressure regulation may be sensitive to the vasodilatory effects of this medication and therefore should be cautious. When taken alongside certain antiviral drugs, such as Ritonavir, this medication may significantly increase blood concentration, raising the risk of side effects; therefore, dosage adjustments or avoidance is advised. The artificial sweetener aspartame present in this medication may be harmful to individuals with phenylketonuria, and they should avoid its use. This medication is not intended for use in individuals under the age of 18 or in women. Patients with hypersensitivity, specific cardiovascular diseases, hypotension, or severe liver or kidney dysfunction should avoid using this medication. Elderly patients may experience increased blood concentration of this medication; therefore, starting at a lower dose is advisable. If sudden vision loss or hearing decrease occurs while taking this medication, it should be discontinued immediately, and a doctor should be consulted. Caution should be exercised when driving or operating machinery, as visual disturbances or dizziness may occur. It is also safe to avoid the use of this medication alongside other erectile dysfunction treatments, and it does not provide protection against sexually transmitted diseases. In case of overdose, symptoms such as headaches, dizziness, indigestion, visual disturbances may worsen; therefore, adherence to recommended doses is essential, and in case of overdose, immediate consultation with a medical institution is required. Store this medication in a tightly closed container to prevent exposure to air and humidity, and keep it at room temperature between 1 to 30 degrees Celsius to maintain its efficacy.

Serious side effects

Hives, severe swelling (edema), chest tightness, difficulty breathing, cold sweat, pallor, severe rash with fever, blisters, skin peeling, pain in oral/ocular mucosa, shortness of breath or difficulty breathing, asthma attack, cough with fever-related respiratory issues, yellowing of skin or eyes (jaundice), profound lethargy, sudden and severe headache, lightning headache, seizure, altered consciousness, visual disturbances, paralysis, urination

Mild side effects

Headache, flushing, indigestion, nasal congestion, urinary tract infection, diarrhea, dizziness, rash, vomiting, dry mouth, muscle pain, limb pain, itching, sweating, dry skin, throat tightness, drowsiness, eye congestion, visual disturbances (color vision disturbances, increased photophobia, blurriness), eye pain, glare, photophobia, color vision disturbances, eye fatigue, dry eyes, eyelid swelling, facial flushing, orthostatic hypotension, vasodilation, tachycardia, palpitations, nosebleed,

This medication should be stored in a tightly closed container to prevent air or moisture from entering, and it is recommended to keep it at room temperature between 1 to 30 degrees Celsius. This helps maintain the medication's efficacy.

Appearance

Green film-coated tablet with a rounded triangular shape and a score line

Package unit

8 tablets (4 tablets/PTP*2)