Prigra Tablet 50 mg (Sildenafil Citrate)

Adult dose

As sildenafil, the recommended dose of 25–50 mg should be taken orally about 1 hour before sexual activity, and may be taken anywhere from 4 hours to 30 minutes before sexual activity if indicated. Dosage can be adjusted based on efficacy and tolerability. The following patients should adjust the initial dose to 25 mg: - Age 65 or older - Liver impairment - Severe kidney impairment - When co-administered with CYP3A4 inhibitors - When co-administered with ritonavir

This medicine should not be taken with nitrate preparations that lower blood pressure, as it may cause an excessive drop in blood pressure; therefore, patients taking such medications must inform their doctors. Patients with heart conditions should ensure their cardiac status is stable before taking this medicine, and sexual activities that may impose strain on the heart are not recommended. This medicine can cause temporary lowering of blood pressure due to vasodilation; hence, patients with cardiovascular diseases or unstable blood pressure should be cautious. Specifically, patients who have experienced heart or cerebrovascular diseases in the last six months should not use this medicine. If an erection lasts longer than 4 hours or is accompanied by pain, immediate medical attention is required, as untreated cases may lead to penile tissue damage and permanent erectile dysfunction. The safety of this medication has not been established in patients with certain liver or kidney disorders and those with pigmentary retinopathy, so it must be used cautiously. If taken with certain medications, such as ritonavir, this medicine's blood concentration may significantly increase, raising the risk of side effects; therefore, dosage adjustments may be necessary. Patients with phenylketonuria should not take this medicine if it contains the artificial sweetener aspartame. Patients who have allergic reactions to this medicine, are taking nitrate medications, or have severely poor cardiovascular conditions should not use it. Elderly patients or those with compromised liver or kidney function should start with a reduced dosage for safety. Common side effects of this medicine include headache, facial flushing, indigestion, dizziness, visual disturbances, drowsiness, eye pain, light sensitivity, dry eyes, eye fatigue, halos around lights, redness, conjunctival congestion, eye irritation, abnormal sensations in the eyes, eyelid swelling, tachycardia, palpitations, hypotension, nosebleed, sinus congestion, throat tightness, nausea, vomiting, upper abdominal pain, dry mouth, and reduced oral sensitivity. Care should be taken when driving or operating machinery due to possible visual disturbances or dizziness caused by this medicine. If sudden vision loss or hearing loss occurs during the use of this medicine, discontinue use immediately and consult a physician. This medicine should only be used for the treatment of erectile dysfunction and does not provide protection against sexually transmitted diseases. It is not recommended to take this medicine with other erectile dysfunction medications, as safety and efficacy have not been verified. Due to many potential drug interactions, consult with a physician or pharmacist if taking other medications. Exceeding the recommended dosage may worsen symptoms, so it is critical to adhere to the recommended dose, and in the case of overdose, seek medical assistance immediately. Keep out of reach of children, and avoid transferring the medicine to another container.

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 attacks, cough with fever, respiratory abnormalities, yellowing of the skin or eyes (jaundice), extreme lethargy, sudden and severe headache, thunderclap headache, seizures, confusion, vision abnormalities, paralysis, urination

Mild side effects

Headache, flushing, indigestion, nasal congestion, urinary tract infection, diarrhea, dizziness, rash, visual disturbances (color vision impairment, increased photosensitivity, blurred vision), drowsiness, eye pain, light sensitivity, dry eyes, eye fatigue, halos around lights, redness, conjunctival congestion, eye irritation, abnormal sensations in the eyes, eyelid swelling, tachycardia, palpitations, hypotension, nosebleed, sinus congestion, throat tightness, nausea, vomiting, upper abdominal pain, dry mouth, decreased oral sensitivity,

Store this medicine in a tightly closed container to protect it from air and moisture. It is advisable to maintain storage temperature between 1°C and 30°C at room temperature.

Appearance

Green film-coated tablet with rounded edges and a score line

Package unit

8 tablets (4 tablets x 2 PTP)