What are the side effects of using *?

* (Sildenafil citrate tablets, referred to as sildenafil), commonly known as "*", is the world's first oral PDE5 inhibitor (phosphodiesterase type 5 inhibitor) used to treat male erectile dysfunction (also known as impotence or ED), which has promoted revolutionary progress in ED treatment and effectively improved penile erection hardness.
* For more than 10 years on the market, oral drugs represented by sildenafil have been recommended as frontline treatment for ED by medical guidelines in many countries and regions (such as the United States, Europe, China, Japan, etc.).
At any time, patients who are taking any dosage form of nitrates must not take them at the same time *. Including nitroglycerin. If * is combined with any nitrates, the patient's blood pressure may suddenly drop to unsafe or life-threatening levels.
* What are the systemic reactions?
Systemic reactions: facial edema, photosensitivity reaction, shock, fatigue, pain, chills, accidental fall, abdominal pain, allergic reaction, chest pain, accidental injury.
Cardiovascular system: Angina pectoris, atrioventricular block, migraine, syncope, tachycardia, palpitations, hypotension, orthostatic hypotension, myocardial ischemia, cerebral thrombosis, cardiac arrest, heart failure, electrocardiogram abnormality, cardiomyopathy.
Digestive system: vomiting, glossitis, colitis, dysphagia, gastritis, gastroenteritis, esophagitis, stomatitis, dry mouth, abnormal liver function, rectal bleeding, gingivitis.
Blood and lymphatic system: anemia and leukopenia.
Metabolism and nutrition: thirst, edema, gout, unstable diabetes, hyperglycemia, peripheral edema, hyperuricemia girl using vibrator , hypoglycaemic reactions, hypernatremia.
Musculoskeletal system: arthritis, arthropathy, muscle pain, tendon rupture, tenosynovitis, bone pain, muscle weakness, synovitis.
Nervous system: ataxia, hypertonia, neuralgia, neuropathy, paresthesia chastity device , tremor, dizziness, depression, insomnia, drowsiness, dreaminess, bradyreflexes, dysothesia.
Respiratory system: asthma, dyspnea, laryngitis, pharyngitis, sinusitis, bronchitis, excessive phlegm, cough.
Skin and its appendages: Urticaria, herpes simplex, itching, sweating, skin ulcers, contact dermatitis, exfoliative dermatitis.
Special feelings: pupil dilation, conjunctivitis, photophobia, tinnitus, eye pain, deafness, earache, eye bleeding, cataracts, dry eyes.
Urogenital system: cystitis, nocturnal urine, frequent frequency, enlarged breast, urinary incontinence cock cages , abnormal ejaculation, genital edema and lack of orgasm.
* Can cause 3 side effects
Dizziness: Clinical trials have found that 1 in 10 patients suffers from severe headaches, and the higher the dose, the more severe the headache.
Dizziness: About 3% of people taking drugs can experience temporary blurred vision, and some can experience hallucinations of seeing blue light.
Dizziness: This drug may have the effect of causing a sharp drop in blood pressure. If you take drugs such as nitroglycerin at the same time lesbian double dildo , you will immediately experience dizziness or even fainting.
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