Amobarbital
Also known as: Amylobarbitone
Amobarbital is a barbiturate, used as a hypnotic and sedative. Amobarbital is now rarely recommended because of its adverse side effects and dependence.
Primary Characteristics
Amobarbital is also known as Amylobarbitone.
It is of Synthetic origin.
Molecular Weight: 226.13 · Solubility in Water: 8.97e-01mg/mL · Non-proprietary name: Amobarbital.

Pharmacokinetics
Elimination: it is metabolised via Hepatic, plasma half-life is 8-42 hrs.
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Indications
Amobarbital is primarily indicated in conditions like Prophylaxis of NSAID-associated gastric or duodenal ulcer.
Contraindications
Amobarbital is contraindicated in conditions like Porphyria, Pregnancy, Breast feeding, Heterozygous familial hypercholesterolaemia, Hyperlipidaemias, see instruction, Central retinal venous/arterial thrombosis.
Dosage
Amobarbital's dosage details are as follows:
| Dose | Single Dose | Frequency | Route | Instructions |
|---|---|---|---|---|
| Adult Dosage | ||||
| 40 mg | 40 mg | — | IM/IV | This dose is for day time sedation. To be taken 2-3 times a day. |
| 132.5 mg/dose | 132.5 mg/dose | — | IV | This dose is for control of seizures. |
| 132.5 mg | 132.5 mg | — | IV/IM | This dose is for trouble in sleeping. Should be injected into a muscle or vein. |
| 132.5 mg | 132.5 mg | — | PO | This dose is for trouble in sleeping. Should be taken at bed time. |
| 175 mg | 175 mg | — | PO | This dose is for day time sedation. Should be taken in smaller doses during the day. |
| 200 mg | 200 mg | — | PO | This dose is for sedation before surgery. Should be taken 1 to 2 hours before surgery.. |
| 300 mg | 300 mg | — | PO | This dose is for sedation during labour. To be taken every one to three hours if needed. However, the total dose is usually not more than 1000 mg. |
| Paediatric Dosage (20kg) | ||||
| 0 – 0 | — | — | ||
| Neonatal Dosage (3kg) | ||||
| No data. | ||||
Drug Interactions
Always consult your physician for the change of dose regimen or an alternative drug of choice that may strictly be required.
Side Effects
Amobarbital is known to cause more or less tolerable side effects which are usually transient. These include Ataxia, Confusion, Dizziness, Hangover with drowsiness, Headache, Hypersensitivity reactions, Paradoxical excitement, Precede sleep, Respiratory depression.
Warnings / Precautions
Available Brands
None recorded.
Storage Conditions
Drug Classification
- 1.24.3 — Drugs used in anxiety and sleep disorders