Robaxin-750 is a muscle relaxer that is used together with rest and physical therapy to treat skeletal muscle conditions such as pain or injury.

Robaxin-750 injection is sometimes used in the treatment of tetanus, (lockjaw) which causes painful tightening of the muscles.

Robaxin-750 may also be used for purposes not listed in this medication guide.

Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed. Robaxin-750 is only part of a complete treatment program that may also include rest, physical therapy, or other pain relief measures.

Robaxin-750 oral is taken by mouth. You may need to reduce your dose after the first 2 or 3 days of treatment. Carefully follow your doctor's dosing instructions.

Robaxin-750 injection is injected into a muscle or given as an infusion into a vein. A healthcare provider will give you this injection.

Robaxin-750 injection is usually given as a single dose before you start taking the oral form.

Tell your caregivers if you feel any burning, pain, or swelling around the IV needle when Robaxin-750 is injected.

This medicine can affect the results of certain medical tests. Tell any doctor who treats you that you are using Robaxin-750.

Store at room temperature away from moisture and heat. Keep the bottle tightly closed when not in use.

You should not use Robaxin-750 if you are allergic to it.

Tell your doctor if you have ever had:

• kidney disease;

• a seizure; or

• myasthenia gravis.

Robaxin-750 may harm an unborn baby. Use effective birth control to prevent pregnancy, and tell your doctor if you become pregnant.

It may not be safe to breastfeed while using Robaxin-750. Ask your doctor about any risk.

Robaxin-750 is not approved for use by anyone younger than 16 years old unless to treat tetanus.

Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include nausea, extreme drowsiness, fainting, seizure, or coma.

Avoid driving or hazardous activity until you know how Robaxin-750 will affect you. Dizziness or drowsiness can cause falls, accidents, or severe injuries.

Drinking alcohol with this medicine can cause side effects.

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Robaxin-750 may cause serious side effects. Stop using Robaxin-750 and call your doctor at once if you have:

• a light-headed feeling, like you might pass out;

• slow heartbeats;

• a seizure;

• jaundice (yellowing of your skin or eyes); or

• pain, bruising, swelling, or skin changes where a Robaxin-750 injection was given.

Common side effects of Robaxin-750 may include:

• headache, dizziness, drowsiness;

• fever;

• confusion, problems with memory;

• nausea, vomiting, upset stomach;

• blurred vision, double vision;

• flushing (warmth, redness, or tingly feeling);

• sleep problems (insomnia); or

• lack of coordination.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Using Robaxin-750 with other drugs that make you sleepy or slow your breathing can cause dangerous side effects or death. Ask your doctor before using opioid medication, a sleeping pill, a muscle relaxer, or medicine for anxiety or seizures.

Other drugs may affect Robaxin-750, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all your current medicines and any medicine you start or stop using.