Can I Take Viagra If I'm on Concor and Hytrin? - Pharmacology

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Can I take Viagra?


I take two medications prescribed by your hospital every day: 1.
Cardiovascular medication Concor (Bisoprolol) 5mg, half a tablet, and 2.
Prostate medication Hytrin (Terazosin) 2mg, one tablet.
Can I also take Viagra (Sildenafil) 50mg?

Xiao Hua, 60~69 year old female. Ask Date: 2008/08/05

Dr. Li Liling reply Pharmacology


Hello: It is generally not recommended to take Hytrin and Viagra together.
If you need to take Viagra, it is advisable to space it at least one hour apart from Hytrin.
Wishing you health and safety.

Reply Date: 2008/08/05

More Info


When considering the use of Viagra (sildenafil) alongside Concor (bisoprolol) and Hytrin (terazosin), it is essential to understand the potential interactions and effects of these medications.
Viagra is primarily used to treat erectile dysfunction by increasing blood flow to the penis. It works as a phosphodiesterase type 5 (PDE5) inhibitor, which helps relax the blood vessels. On the other hand, Concor is a beta-blocker that is often prescribed for hypertension and heart-related issues, while Hytrin is an alpha-blocker used to treat high blood pressure and symptoms of benign prostatic hyperplasia (BPH).

The combination of these medications can lead to a few important considerations:
1. Blood Pressure Effects: Both Hytrin and Viagra can lower blood pressure. Hytrin works by relaxing blood vessels, which can lead to a decrease in blood pressure. Viagra can also cause vasodilation, leading to a further drop in blood pressure. When taken together, there is a risk of hypotension (low blood pressure), which can result in symptoms such as dizziness, lightheadedness, or fainting, especially when standing up quickly.

2. Timing of Doses: If you decide to take Viagra while on Hytrin, it is advisable to space out the doses. A common recommendation is to take Viagra at least one hour after taking Hytrin. This timing helps to minimize the risk of significant blood pressure drops.

3. Monitoring: If you are considering taking Viagra, it is crucial to monitor your blood pressure regularly. If you experience any symptoms of low blood pressure, such as dizziness or fainting, you should seek medical attention immediately.

4. Consultation with Healthcare Provider: Before starting Viagra, it is essential to consult with your healthcare provider. They can assess your overall health, review your current medications, and determine if Viagra is safe for you to use in conjunction with Concor and Hytrin. They may also adjust dosages or suggest alternative treatments based on your specific health needs.

5. Individual Variability: Each person's response to medications can vary significantly. Factors such as age, overall health, and the presence of other medical conditions can influence how these drugs interact. Therefore, personalized medical advice is crucial.

In summary, while it may be possible to take Viagra with Concor and Hytrin, caution is advised due to the potential for lowered blood pressure. Always consult with your healthcare provider before making any changes to your medication regimen to ensure your safety and well-being. They can provide tailored advice based on your health status and medication history.

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