Short answer. A doctor who prescribes a dangerous drug to a person whose condition does not require it faces 12 years and one day to 20 years in prison, a fine of P100,000 to P500,000, and revocation of the license to practice. Section 18 of RA 9165 sets this penalty.
What the law says
The penalty of imprisonment ranging from twelve (12) years and one (1) day to twenty (20) years and a fine ranging from One hundred thousand pesos (P100,000.00) to Five hundred thousand pesos (P500,000.00) and the additional penalty of the revocation of his/her license to practice
RA 9165, Section 18 — Unnecessary Prescription Of Drugs. Read the full provision →
What the law punishes
Section 18 of Republic Act 9165, the Comprehensive Dangerous Drugs Act, targets a specific abuse: a licensed practitioner who writes a prescription for a dangerous drug that the patient does not medically need. The offense is committed when the practitioner prescribes any dangerous drug to any person whose physical or physiological condition does not require the use or in the dosage prescribed therein. That wording reaches two situations at once: prescribing a drug that is not called for at all, and prescribing a legitimate drug in an excessive dose. The wrong here is a medical one, not a mere lapse in paperwork.
The penalty has three parts
The consequences come in three layers that are imposed together, not chosen among. First is imprisonment ranging from twelve (12) years and one (1) day to twenty (20) years. Second is a fine ranging from One hundred thousand pesos (P100,000.00) to Five hundred thousand pesos (P500,000.00). Third, and unique to this offense, is the revocation of the practitioner's license to practice. In other words, the same act that can send a doctor to prison also ends the professional standing that made the prescription possible in the first place. The career loss follows automatically on conviction.
Who decides a prescription was unnecessary
The law does not leave the word "unnecessary" to a prosecutor's guess. The statute says the lack of medical need is determined by the Board in consultation with recognized competent experts who represent professional organizations of practitioners. It expressly points to those involved in the care of persons with severe pain, an acknowledgment that strong drugs are sometimes exactly what a suffering patient needs. So a doctor who prescribes a heavy medicine for genuine, documented severe pain is practicing medicine, not committing this crime. The offense turns on the absence of a real physical or physiological reason for the drug.
Who is bound and what is not covered
This section binds practitioners, the people licensed to prescribe, and not patients or pharmacists, who answer under other parts of the same Act. It punishes the act of prescribing without need; it is separate from the crimes of illegal possession, sale, or use of the drug itself. A prescription written in good faith and supported by the patient's real condition is not reached at all. Because the penalty includes the loss of the license, the professional stakes are as serious as the criminal ones, and both attach on a single proven violation.