Effective dosage: Norgesic recommended dosage for adults is 1 to 2 tablets 3 to 4 times daily, one in the morning and one in the evening.

Effective dosage: Recommended Muscoril dosage is 8 mg the first day, then to increase up to 12 to 16 mg per day. Do not exceed 8 mg per dose. Side effects: Tell your doctor if any of these symptoms are severe or do not go away: dizziness, upset stomach, vomiting, tingling sensation in the arms, legs, hands, and feet, dry mouth, increased muscle spasms.

Effective dosage: The usual starting dose of baclofen for adults is 5 mg given three times daily. Side effects: Baclofen may cause drowsiness, weakness, dizziness, headache, seizures, nausea, vomiting, low blood pressure, constipation, confusion, respiratory depression, inability to sleep, and increased urinary frequency or urinary retention.