Brief Answer:
Taking Effexor XR with gabapentin causes increased drowsiness

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

I have read through your query in detail.
Please find my observations below.

1. Taking Effexor XR (venlafaxine) and gabapentin might increase drowsiness and difficulty in staying awake and maintaining alertness. Please avoid activities like driving, cooking or swimming after taking this combination of medicines as it requires a high level of alertness.

2. Alcohol should not be taken when you are taking this combination.

3. Other than increased drowsiness as mentioned above, there is no other significant adverse effect on taking the above medicines together. Please consult your doctor if you feel uncomfortable after taking the medicines and discuss doses adjustments.

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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