Quadrapax Elixir Dosage
Generic name: Phenobarbital 16.2mg in 5mL, Hyoscyamine Sulfate 0.1037mg in 5mL, Atropine Sulfate 0.0194mg in 5mL, Scopolamine Hydrobromide 0.0065mg in 5mL
Dosage form: elixir
Drug class: Anticholinergics / antispasmodics
Medically reviewed by Drugs.com. Last updated on May 9, 2022.
The dosage of Quadrapax Elixir should be adjusted to the needs of the individual patient to assure symptomatic control with a minimum of adverse effects.
Adults: One or two teaspoonfuls of elixir three to four times a day according to conditions and severity of symptoms.
Pediatric patients: may be dosed every 4 to 6 hours.
Starting dosage
Children under 2 years of age: as directed by a physician.
Adults: One or two teaspoonfuls of elixir three to four times a day according to conditions and severity of symptoms.
Pediatric patients: may be dosed every 4 to 6 hours.
Starting dosage
| Body weight | q4h | q6h |
| 10 lb. (4.5 kg) |
0.5 mL |
0.75 mL |
| 20 lb. (9.1 kg) |
1.0 mL |
1.5 mL |
| 30 lb. (13.6 kg) |
1.5 mL |
2.0 mL |
| 50 lb. (22.7 kg) |
1/2 tsp |
3/4 tsp |
| 75 lb. (34 kg) |
3/4 tsp |
1 tsp |
| 100 lb. (45.4 kg) |
1 tsp |
1 1/2 tsp |
More about Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)
Patient resources
- Other brands
- Donnatal, Antispasmodic, Phenohytro, D-Tal, ... +2 more
Professional resources
Related treatment guides
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.