Slowly pull back the plunger until the required dose. Sorry something went wrong with your subscription Please, try again in a couple of minutes Retry. Some medications should not be taken with sildenafil. If you are taking sildenafil for erectile dysfunction, your doctor will probably start you on an average dose of sildenafil and increase or decrease your dose depending on your response to the medication. Talk to your doctor if you take too much sildenafil and you’re worried about any of these side effects: headaches. · sores in the mouth and on the lips. tense muscles. trembling and shaking. vomiting. waking to urinate at night. worsening of asthma. Other side effects not . Sildenafil works in different ways, depending on the condition it’s being used to treat. For ED: Sildenafil works by increasing blood flow to the penis. This helps . · This medicine usually begins to work for erectile dysfunction within 30 minutes after taking it. It continues to work for up to 4 hours, although its action is .
