When it was a legal medicine, methaqualone was available in tablet and capsule form and came in different strengths.
Oral Quaaludes dosages was 75-150mg for light sedation. A common prescribed dose was 300mg. Up to 600mg was used for strong sedation. Tolerance develops rapidly and some users may take up to 2000mg daily to achieve the same effects.
Onset of action is approximately 30 minutes after taking Quaaludes and duration of action is between 5 to 8 hours.
Overdose of Quaaludes can lead to seizures, coma or death.
Taking doses of over 300mg can be dangerous for first time users. Depending on the state of the user’s tolerance, doses of about 8,000mg per day can be fatal and others on even higher doses (of up to 20,000mg) may survive.