What happens if I miss a dose? Since Viagra is used as needed, you are not likely to miss a dose. What happens if I overdose? Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. Talk to your doctor about the possible side effects of VIAGRA®. Jump to navigation VIAGRA home delivery is only available to residents of the United States and Puerto Rico. Viagra is indicated for the treatment of erectile dysfunction. Viagra Dosage and Administration Dosage Information. For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity. Consumer information about the medication SILDENAFIL (ERECTILE DYSFUNCTION) - ORAL (Viagra), includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug SILDENAFIL (ERECTILE DYSFUNCTION) - ORAL. Side effects of cialis overdose - Get Pills. Brand and Generic products for sale. 100% secure bill. Low Prices for ALL. 2019 now- best prices online. Internet discounts! Brand and Generic products for sale. 100% secure bill. I would say ask your doctor about side effects. There is Viagra, Cialis, Enzyte, and much more. You doctor will know what medicines you can't handle. However, Viagra can have unpleasant side effects, and an overdose can be serious. We cover everything you need to know about Viagra in this article. We cover everything you need to know about. Side Effects. Dizziness, headache, flushing, or stomach upset may occur. Vision changes such as increased sensitivity to light, blurred vision, or trouble telling blue and green colors apart may. Their side-effects so debilitated him that he had to take two days off to recover. Why did the presumably virile Kaulitz decide to take multiple doses of Viagra? Maybe he is pioneering some new. Viagra, like any medication, has possible side effects and warnings associated with its use. One of the possible effects Viagra can have is to lower blood pressure. Therefore the medication should.