Brief Answer:
Rare possibility of dizziness or fainting when taken together

Detailed Answer:
Hi XXXX,
Thanks for writing in to us.

I have read through your query in detail.
Cialis contains tadalafil and is given in erectile dysfunction and benign hypertrophy of prostate.
Bisoprolol belongs to a group of drugs called beta-blockers and is used to treat hypertension (high blood pressure)

Together Cialis and Bisoprolol is usually safe but can cause symptoms of low blood pressure such as dizziness, lightheadedness, or fainting. These medications are to be taken under medical supervision.

If you have been given the medications by your doctor then you can continue taking it. However, please report to your doctor if you experience dizziness, lightheadedness or fainting after taking these medications.

Hope this answers your question. Please feel free to correct any oversight in my interpretation of your problems and discuss them in detail as per your requirements.

Hope your query is answered.
Do write back if you have any doubts.

Regards,
Dr.Vivek

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