Effectiveness in pediatric patients below the age of 3 years has not been established. The starting dose is 300 mg three times a day. The effective dose of NEURONTIN is 300 mg to 600 mg three times a day. Dosages up to 2400 mg/day have been well tolerated in long-term clinical studies.n adults with postherpetic neuralgia, NEURONTIN therapy may be initiated on Day 1 as a single 300 mg dose, on Day 2 as 600 mg/day (300 mg two times a day), and on Day 3 as 900 mg/day (300 mg three times a day).
Quick Answer. The average cruising flight speed for commercial jets is around 540 mph. This is based on the most popular commercial jets in operation, the Boeing 747 family.
  Generally it depends on the weight of the airplane. Light airplane like Cessna 172 can take off at about 60mph, heavy airplane like Boeing 747 needs 180mph to get airb â¦ orne!  * Speeds vary depending on type of aircraft, weight, and enviromental conditions.Takeoff speeds are referred to as V1 and V2. The speed that a mach number relates to differs with altitude, temperature and air density. But in general terms, if a plane flies Mach .8 at 37000 feet, the speed is around 850 km/h, 520 m/h or 450 knots.