Yes, Baclofen can cause sleepiness. It can make a person dizzy due to its sedative effect. It can also affect vision and therefore you should avoid driving and using heavy machinery until and unless you know how Baclofen affects you.

No, Baclofen is not a narcotic. It is a muscle relaxant. It does not have abuse potential. Baclofen may cause side effects which include drowsiness, euphoria, and dysphoria. Hence, it should not be used with medicines that cause similar side effects like pain-relieving opiates.

Though Baclofen is not approved to treat anxiety disorders, it has been observed in some studies that it is effective in treating stress which occurs after a trauma.

If you have a liver problem then you need to be cautious while taking Baclofen. This is because the medicine may increase the production of liver enzymes. Hence, regular laboratory examination of liver enzymes is required while taking this medicine as advised by your doctor.

Baclofen may cause side effects in patients with normal kidney function which include excessive day time urination (pollakiuria), burning sensation while urinating (dysuria), and loss of bladder control (urinary incontinence). Generally, a lower dose of this medicine is prescribed if a person has abnormally functioning kidneys or if a person is on dialysis.

Take Baclofen exactly as directed by your doctor. If a person experiences nausea while taking Baclofen then it should be consumed with food or milk. However, for night cramps, it would be best to use the medicine at night time or 1 hour before doing specific tasks like physiotherapy or washing.