Classes
Discontinued
DEA Class; Rx, schedule III
Common Brand Names; Synalgos-DC
Analgesics and Opioids combos
Description
Combination of aspirin, ASA; caffeine; dihydrocodeine; for moderate to moderately severe pain; produces a greater analgesic effect than aspirin or opiates alone; may cause fewer adverse reactions than equianalgesic doses of individual agents.
Uses/Indications
Indicated for the treatment of moderate pain to severe pain (i.e. headache, myalgia, back pain, bone pain, dental pain, dysmenorrhea, or arthralgia).
Because of risks of addiction, abuse, and misuse with opioids, even at recommended doses, reserve therapy for use in patients for whom alternative treatment options [e.g., non-opioid analgesics], have not been tolerated, or are not expected to be tolerated, have not provided adequate analgesia, or are not expected to provide adequate analgesia
Contraindications
Hypersensitivity
Any situation where opioids are contraindicated including significant respiratory depression (in unmonitored settings or in the absence of resuscitation equipment), and acute or severe bronchial asthma or hypercapnia
Children <12 years
Postoperative management in children <18 years following tonsillectomy and/or adenoidectomy (see Black Box Warnings)
Concurrent use of monoamine oxidase inhibitors (MAOIs) or use of MAOIs within the last 14 days
Known or suspected gastrointestinal obstruction, including paralytic ileus
Hemophilia
Reye’s syndrome
Known allergy to nonsteroidal anti-inflammatory drugs (NSAIDs)
Syndrome of asthma, rhinitis, and nasal polyps
Adverse Effects
Dihydrocodeine
Light-headedness
Dizziness
Drowsiness
Headache
Fatigue
Sedation
Confusion
Aspirin
Stomach pain
Heartburn
Nausea
Vomiting
Dyspepsia
Tinnitus (high or chronic dose)
Rash
Caffeine
Insomnia
Restlessness
Nervousness
Tremor
Tinnitus
Irritability
Nausea
Warnings
May impair mental/physical abilities required for hazardous tasks (eg, driving, operating machinery)
May cause respiratory depression; risk is greatest during initiation of therapy or following a dosage increase; monitor patients closely for respiratory depression, especially within first 24-72 hours of initiating therapy and following dosage increases; to reduce risk, proper dosing and titration are essential; overestimating; dosage when converting patients from another opioid product can result in fatal overdose with first dose
Opioids can cause sleep-related breathing disorders including central sleep apnea (CSA) and sleep-related hypoxemia
Pregnancy and Lactation
Pregnancy
Pregnancy Category: D; avoid aspirin during pregnancy, particularly in third trimester because of risk for premature closure of the ductus arteriosus
Prolonged use of opioid analgesics during pregnancy may cause neonatal opioid withdrawal syndrome; available data in pregnant women are insufficient to inform a drug-associated risk for major birth defects and miscarriage
Lactation: Distributed in breast milk in small amounts, caution advised
Maximum Dosage
Adults
8 capsules/24 hours PO.
Geriatric
8 capsules/24 hours PO.
Adolescents
Safety and efficacy have not been established.
Children
12 years: Safety and efficacy have not been established.
1 to 11 years: Use is contraindicated.
Infants
Use is contraindicated.
How supplied
dihydrocodeine/aspirin/caffeine
Capsule: Schedule V
16mg/356.4mg/30mg