What are the contraindications of viagra?

First, do not take 비아그라 구매 more than once a day.

Second, it is recommended to take 50 mg, only when needed, one hour before intercourse. By the way, do not exceed the maximum recommended dose and never exceed 100 mg per day!

It is preferable not to consume anything with grapefruit (grapefruit) while taking viagra.

Men with specific medical issues should avoid taking some erectile dysfunction drugs. Therefore, if this applies to you, your doctor might be able to suggest a different course of action.

Seek medical help immediately if you experience dizziness or nausea during sexual activity, or if you experience pain, numbness, or tingling in your chest, arms, neck, or jaw.

Viagra, medicines, and drugs

Do not take 비아그라 구입 if you are already taking another nitrate medication for chest pain or heart problems.

And don't take Viagra with recreational drugs, as combining these substances can cause a sudden and dangerous drop in your blood pressure.

Buy your erectile dysfunction drugs from places with a known reputation, as there are many counterfeit products on the market.

Lifestyle and psychological factors, such as alcohol and cigarette consumption and stress, can cause erectile dysfunction. Eliminating these elements (including getting more exercise, eating healthier, drinking less alcohol, giving up smoking, and reducing stress, for example) can also help you have better erections.

Never take other erectile dysfunction medications at the same time as viagra. Do not take it while using Revatio and vice versa.

See a doctor urgently if you have an allergic reaction, sudden loss of vision, or painful erections that last longer than four hours.

Also, drinking alcohol after taking viagra can lower blood pressure and decrease sexual performance.

What drugs does viagra interact with?

Medications that interact with 비아그라 can decrease their effect, affect their duration, increase their side effects, or become ineffective when taken with viagra.

The interaction between two drugs does not always mean that you have to stop taking one of them, but in some cases it is necessary. So talk to your doctor about how you should manage these between medications.

Here are some common medications that can interact with viagra:

• Alpha agonists (eg, clonidine, methyldopa)
• the alpha blockers (eg alfuzosin, doxazosin, prazosin, tamsulosin or terazosin)
• Antibiotics such as clarithromycin, erythromycin, metronidazole, norfloxacin, rifabutin, rifampicin and tetracycline
• Antidepressants, such as desipramine, sertraline, and St John's wort
• Antifungal medications (eg, itraconazole, ketoconazole, or voriconazole)
• Anticoagulants, such as warfarin
• Medicines for cystic fibrosis, such as ivacaftor
• Epilepsy treatments (eg, carbamazepine, oxcarbazepine, phenobarbital, phenytoin, and primidone)
• Other erectile dysfunction medications such as alprostadil, cialis, sildenafil, vardenafil
• Heart medications such as amlodipine, amiodarone, atenolol, bosentan, candesartan, captopril, clonidine, diltiazem, enalapril, irbesartan, losartan, nifedipine, propranolol, sotalol and verapamil
• Hepatitis drugs (eg, boceprevir and simeprevir)
• HIV drugs (eg, atazanavir, delavirdine, efavirenz, fosamprenavir, indinavir, etravirine, ritonavir, nevirapine, saquinavir and tipranavir)
• Nitrates like nitroglycerin, isosorbide dinitrate, isosorbide mononitrate, and amyl nitrate
• aprepitant, butalbital, cimetidine, cyclosporine, or imatinib, among others.