How to Take Viagra: Chew or Swallow for Best Results? - Pharmacology

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When taking Viagra, should the tablet be chewed before swallowing, or should it be swallowed whole with water? Which method provides the best effect? Thank you!

Tianren, 60~69 year old female. Ask Date: 2018/05/04

Dr. Wu Junhao reply Pharmacology


When taking Viagra, please swallow the whole tablet with water without chewing it.
Thank you.

Reply Date: 2018/05/04

More Info


When it comes to taking Viagra (sildenafil), the recommended method is to swallow the tablet whole with a glass of water, rather than chewing it. This is because Viagra is designed to be absorbed through the gastrointestinal tract, and chewing the tablet can alter its formulation, potentially affecting how the medication is absorbed and its overall effectiveness.

Viagra is typically taken about 30 minutes to an hour before sexual activity, and its effects can last for up to four hours. It is important to note that Viagra does not cause an erection on its own; sexual stimulation is still necessary for the medication to work.
Here are some additional considerations regarding the use of Viagra:
1. Dosage: The standard starting dose of Viagra is 50 mg, but it can be adjusted based on individual response and tolerance. Some individuals may require a lower dose (25 mg) or a higher dose (100 mg). It is crucial to follow your healthcare provider's recommendations regarding dosage.

2. Food Interactions: Viagra can be taken with or without food, but it is advisable to avoid high-fat meals before taking the medication. High-fat meals can delay the absorption of Viagra, potentially reducing its effectiveness.

3. Alcohol Consumption: Drinking alcohol can also affect the effectiveness of Viagra. While moderate alcohol consumption is generally acceptable, excessive drinking can impair the ability to achieve an erection.

4. Side Effects: Common side effects of Viagra include headaches, flushing, upset stomach, nasal congestion, and dizziness. If you experience any severe side effects, such as sudden vision loss or an erection lasting more than four hours (priapism), seek immediate medical attention.

5. Contraindications: Viagra should not be taken by individuals who are on nitrates for heart conditions, as this combination can lead to a dangerous drop in blood pressure. Always inform your healthcare provider of any medications you are taking to avoid potential interactions.

6. Consultation with Healthcare Provider: Before starting Viagra, it is essential to consult with a healthcare provider to ensure it is safe for you, especially if you have underlying health conditions or are taking other medications.

In summary, for the best results, Viagra should be swallowed whole with water, rather than chewed. This method ensures optimal absorption and effectiveness of the medication. Always follow your healthcare provider's instructions and discuss any concerns or questions you may have regarding the use of Viagra.

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