Relentus may cause excessive drowsiness with alcohol.

Relentus may be unsafe to use during pregnancy. Although there are limited studies in humans, animal studies have shown harmful effects on the developing baby. Your doctor will weigh the benefits and any potential risks before prescribing it to you. ...

Relentus is probably unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby.

Relentus may decrease alertness, affect your vision or make you feel sleepy and dizzy. Do not drive if these symptoms occur.

Relentus should be used with caution in patients with kidney disease. Dose adjustment of Relentus may be needed. Please consult your doctor.

Relentus should be used with caution in patients with liver disease. Dose adjustment of Relentus may be needed. Please consult your doctor. Use of Relentus is not advised in patients with severe liver disease. Liver function tests are recommended bef...